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Tungsten carbide (WC) has been widely utilized in recent years in the hardware, mechanical, and chemical industries and in national defense because of its high hardness, anti-wear, low temperature, and anti-corrosion properties. However, using it for grinding is also challenging because the WC material has high hardness and brittle characteristics. The typical hub of a diamond wheel is made of steel. In high-speed grinding, the steel hub of the diamond wheel is subjected to gravity and centrifugal forces, which cause grinding wheel vibration, poor workpiece processing quality, and a short machine life. Therefore, this study used a carbon-fiber-reinforced thermoplastic (CFRP) hub to replace the steel hub when grinding the WC workpiece. It aimed to investigate methods to reduce oscillation, improve chip efficiency, and increase accuracy in the WC workpiece. The research results demonstrated that using a CFRP hub in the grinding wheel can reduce the oscillation when the peripheral speed of the grinding wheel is at 20–100 m/s. Additionally, the surface roughness average (Ra) of the workpiece can be reduced to 3.2–25.4% and the ten-point height of irregularities (Rz) can be reduced to 18.9–44% compared to using a steel hub in the grinding wheel. [ABSTRACT FROM AUTHOR]

The grinding wheels comprise three elements (abrasive grain, bonding material, and pores) and five factors (grain size, grain type, grade, structure, and bonding strength). However, owing to their impact on the material's surface quality and grinding efficiency, optimal combinations must be identified for each work material. The correct setting of the elements and factors is challenging and requires in-depth knowledge and engineering expertise. In this study, a random forest data-mining method was used to construct a system that can determine the abrasive grain, grain size, and bonding strength from various combinations of material property values. The verification of the developed system was conducted through grinding experiments on difficult-to-cut materials using the general-purpose grinding wheels recommended by the system. This system facilitates highly accurate interpolation prediction by adding an interpolative property value set in 10% increments to the learning data. A grinding experiment using Inconel 718, a difficult-to-cut material that did not exist in the learning database, resulted in a 12% reduction in wear on the recommended grinding wheels. Thus, the usefulness of the system constructed using the random forest method was established. • Accurate grinding-wheel decision support system using random forest method. • Test on Inconel 718 resulted in a 12% reduction in wear on the grinding wheels. • System improves accuracy of extrapolated data prediction suitably at any location. [ABSTRACT FROM AUTHOR]

The grinding process of the angle grinder generates a large amount of dust, which present hazards to the environment and workers' health. In order to capture the grinding dust more efficiently, this paper optimizes the performance of the dust collection hood of the angle grinder by building a grinding experimental platform and using the response surface method (RSM). Using the Box-Behnken design method, the collection quantity M total of all dust particles generated by grinding and the collection quantity M PM10 of PM10 are used as the main performance indicators of the dust collector. Four independent factors such as grinding wheel diameter, suction pipe diameter, mounting angle, and grinding wheel speed of the dust collection hood were optimized to arrive at the best combination of parameters. Through response surface analysis, a quadratic polynomial regression model between each influencing factor and performance indicator is established, and significance test and variance analysis are performed to verify the validity and applicability of the model. Finally, through three-dimensional response surface plots and contour plots, the interactions between each influencing factor are analyzed, and the predicted values of performance indicators under optimal experimental conditions are determined. The experimental results show that the mounting angle has the greatest impact on M total , and the grinding wheel speed has the greatest impact on M PM10. The field engineering application shows that the optimized dust collection hood can effectively prevent dust from escaping. The reduction efficiency of total dust concentration in the grinding place is over 83.6 %, and the reduction efficiency of respirable dust concentration is over 90.0 %. The research results of this paper provide some reference value for the research and application in the field of dust control. [Display omitted] [ABSTRACT FROM AUTHOR]

The ball mill is a rotating cylindrical vessel with grinding media inside, which is responsible for breaking the ore particles. Grinding media play an important role in the comminution of mineral ores in these mills. This work reviews the application of balls in mineral processing as a function of the materials used to manufacture them and the mass loss, as influenced by three basic wear mechanisms: impact, abrasion, and corrosion. The effect of grinding media geometries and density on the mill performance was also reviewed to determine what the research has recommended as the most suitable grinding media for different grinding applications. Although considerable work has been carried out in that area, the influence of grinding media shape on the liberation of minerals, as well as the effect of various mill conditions on the performance of mixed grinding media shapes, are still poorly understood. Thus, the review opens up opportunities for further research to improve the grinding processes, especially considering that even a slight improvement in the process efficiency significantly reduces the production costs. [ABSTRACT FROM AUTHOR]

Wet grinding is a process with a complex interaction of individual sub‐processes such as fluid mechanics, continuum mechanics and thermodynamics and branched coupling of corresponding properties. In order to be able to represent these properties in a model, this paper develops a description of the hydrodynamic properties in the grinding gap as a building block for a simple but accurate model to describe the process of wet grinding. To this end, it is shown that the Reynolds equation, which is well‐established in the lubrication theory, is also suitable for describing an exemplary grinding wheel with abrasive grains or pores. This is done by demonstrating the feasibility of a calculation and by comparing the results with Computational Fluid Dynamics (CFD) simulations. [ABSTRACT FROM AUTHOR]

In view of the high specific removal energy, high heat generation rate, low heat transfer efficiency, and easy-to-produce local high-temperature and grinding burns, new macro-structured grinding wheel forms were proposed, namely, large spiral angle grooved grinding wheels (LSG-GW, β>85°) and large spiral angle flow disturbance grooved wheels (LSDG-GW). Considering the influence of wheel parameters, groove parameters, and process parameters, an analytical model of the airflow field in the wedge area and contact area of LSG-GW was established. Analytical model of gas–liquid two-phase flow field and theoretical model of convective heat transfer coefficient distribution in heat transfer channels were established. The results showed that increasing the groove width, groove depth, and the spiral angle can reduce the pressure of the flow field in the air barrier layer and make it easier for the grinding fluid to enter the grinding contact area. The LSDG-GW further reduces the grinding fluid back flow and side flow intensity, proving that the flow disturbance structure can bring in more grinding fluid into the grinding contact area. A theoretical model for the distribution of convective heat transfer coefficient in the grinding contact area was derived, and the analysis results proved that the flow disturbance structure can significantly improve the convective heat transfer coefficient in the grinding contact area. The LSDG-GW, as a new macro-surface-structured grinding wheel, has a very promising application in the high-efficiency and high-precision grinding process of difficult-to-machine alloy materials. [ABSTRACT FROM AUTHOR]

High machining accuracy is the unremitting pursuit of grinding technology. The radial deformation of grinding wheel is an important factor affecting the machining accuracy of the workpiece. In this study, a force model of grinding wheel during grinding was established, considering centrifugal force and distribution grinding force. The radial displacement and Mises stress distribution of grinding wheel under different grinding parameters (peripheral velocity, grinding depth, and feed speed) were obtained by finite element simulation based on the established force model. The simulation results showed that the radial deformation of the lowest point of the grinding wheel was most affected by peripheral speed, which increased with the increase of peripheral speed and decreased with the increase of grinding depth and feed speed. The actual grinding depth had deviation caused by the radial deformation of grinding wheel, especially in grinding with large grinding depth and feed speed. The deviation value of grinding depth was also obtained. This work can provide a reference for compensating the deviation and has certain engineering significance for improving the machining accuracy of workpieces. [ABSTRACT FROM AUTHOR]

The structured scale surface is an important functional surface that reduces the drag resistance of fluids and contact friction resistance. In order to grind the bionic scale structure on the workpiece, based on the topological theory and the principle of grinding kinematics, a novel topological grinding strategy was proposed. To this end, the topological feature vectors of the structured scale surface and the grinding wheel surface were established by analyzing the biomimetic structured scale surface; The Topological space of grinding process is constructed and the topological mapping equation of grinding process is established; The feasibility of this grinding strategy was verified through simulation and grinding experiments. The research results indicate that the established topological mapping equation is correct; Under the condition of maintaining design parameters, the errors of the feature parameters of the ground structured scale surface are between 2.8% and 8%; As the grinding parameters change, the feature parameters of the ground scale surface will also change, but they can still maintain the same topological attributes as the designed scale surface. Therefore, the proposed topology grinding strategy is feasible. [ABSTRACT FROM AUTHOR]

The flow field around the grinding wheel prevents grinding fluid from entering the grinding area, which deteriorates machining conditions and reduces the quality of the workpiece. MQL (Minimum Quantity Lubrication) grinding uses compressed gas to improve the ability of the grinding fluid to pass through the flow field of the grinding wheel so that a small amount of the grinding fluid can meet the cooling and lubrication requirements and reduce the cost of using grinding fluid. In this study, we investigated the flow field of grinding wheels under MQL conditions and obtain the rules that influence factors such as grinding fluid flow rate, grinding wheel linear speed and compressed gas pressure affect the flow rate of grinding fluid. The simulation method was used to simulate the flow field of the grinding wheel and the trajectory of the grinding fluid droplets. The simulation results show that these factors are important ones affecting the effective flow rate of grinding fluid. Meanwhile, the experimental results verify that these factors have the same influence pattern on the effective flow rate and grinding temperature. [ABSTRACT FROM AUTHOR]

Machining CMCs under productivity conditions while limiting tool wear and material damage is a challenge for applications such as jet aircraft engines and industrial turbines. This contribution focused on developing a method to characterize the wear of abrasive tools based on fractal dimensions. This solution allows characterization of the state of the tool after each machining and identification of the type of damage to the tool (regular wear of the diamond grains, cleavage, or breakage) and its influence on the cutting forces, in addition to damage to the machined material and the quality of the machined surface. Thus, the chipped area and the maximum chipping are directly associated with the fractal dimension of the tool surface and the metal removal rate of the process. The quality of the surface (Sa, Sz, and Sq) is associated with the fractal dimension of the surface of the tool characterizing the state of the grinding wheel and the radial depth of cut ae characterizing the engagement of the tool in the CMC material. Moreover, the results also demonstrated that the use of an abrasive tool associated with cutting conditions close to milling and not grinding is a viable solution. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Guangdong University of Technology is the property of Journal of Guangdong University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Longitudinal-torsional composite ultrasonic vibration has been widely used in grinding. This paper aims to solve the problem that the resonance frequency deviates greatly from the theoretical design frequency and the vibration mode is poor when the horn is matched with a larger tool head. This paper presents how the longitudinal-torsional composite ultrasonic conical transition horn was designed and optimized by the transfer matrix theory and finite element simulation. For this purpose, the spiral groove parameters were optimized and selected by finite element simulation. Then, the modal analysis and transient dynamic analysis of the horn with grinding wheel were carried out to verify the correctness of the theoretical calculation. The impedance analysis and amplitude test of the horn with grinding wheel were carried out. The test results were in very good agreement with the theoretical and simulation results. Finally, the grinding experiment was carried out. The surface roughness of the workpiece in longitudinal-torsional ultrasonic vibration grinding was obviously reduced compared to that of ordinary grinding. All these obtained results demonstrate that the designed longitudinal-torsional composite ultrasonic horn has very good operational performance for practical applications. [ABSTRACT FROM AUTHOR]

The blisk surface roughness has a significant impact on its fatigue strength and service life. It is very meaningful to study the influence factors of blisk surface roughness. In this paper, a calculation model for the bulk modulus of abrasive cloth wheel is deduced, the values of bulk modulus of abrasive cloth wheel corresponding to different process parameters are obtained by experiment, and a mathematical model of polished surface roughness about bulk modulus of abrasive cloth wheel is established. By verification, it is found that the model of polished surface roughness can accurately predict the blade surface roughness after polishing. The model has guiding significance for improving polishing process and machining quality. [ABSTRACT FROM AUTHOR]

In microdiameter precision grinding of the YAG (Y3Al5O12) optical crystal material, centerless precision grinding is the necessary process of the preparation method to obtain surface finish. To further obtain the optical crystal devices in optical field, the tiny diameter of the optical crystal material is the key element. However, the process to generate the grinding ratio of the grinding ap forms part of precise control of the actual mathematical calculation for the ceramic base grinding wheel. In this work, we propose a satisfying precision grinding models for engineering applications and a theory to explain the grinding process of the microdiameter YAG optical crystal materials. A ceramic base of the grinding wheel axis is designed, and the wheel axis experimental parameters are regulated from controllable clearance and eccentricity for the e by the grinding depth and surface finish quality. The resultant parameters keep constant during the precision grinding and self-adaption dressing process to avoid the deviation caused by centrifugal force. In the process of self-adaption dressing of ceramic base grinding, wheel rotation direction is controlled by critical parameters such as the grinding wheel axis (-), and the regulating wheel axis (-) is the critical parameters to determine the final appearance of the grinding wheel. The value range of the feed location region is [0.022, 1.007]. Grinding wheel axis speed and regulating wheel axis speed are 35~60 RPM. Thus, the process challenges and technical issues of YAG optical crystal material microdiameter precision grinding can be solved. [ABSTRACT FROM AUTHOR]

Copyright of Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents a methodology for the obtaining of an abrasive ceramic as the main product and an iron alloy as a byproduct, using industrial solid residuals as raw materials and aluminothermic processing. By using rolling mill scales and aluminum chips, high-hardness ceramics are obtained, using the ceramic itself as a diluent. The processing results are first evaluated using a mass balance, determining that the ceramic should be formed by 58 % FeAl2O4 and 42 % Al2O3, while quantitative characterization by XRD allows to establish that the ceramic phase is mainly composed of hercynite (62 %), corundum (22 %) and small amounts of non-stoichiometric crystalline (≈4%) and vitreous (≈11%) phases, feasible to be used in the manufacture of abrasive wheels for polishing floors and terraces. [ABSTRACT FROM AUTHOR]

Super high-strength steel has an important demand in manufacturing key components inside gear transmission systems of heavy-duty helicopter owing to its superior comprehensive mechanical property. However, the high-performance machining of super high-strength steel is confronted with great challenges owing to the high cutting force, serious tool wear, and impoverished machining quality. Comparative trials in grinding ultra-high strength steel under conventional grinding (CG) and ultrasonic vibration-assisted grinding (UVAG) processes were conducted with white alumina (WA) and microcrystalline alumina (MA) wheels. Grinding performances, including grinding forces, force ratio, ground surface quality, and abrasive wheel morphologies, were discussed in detail. Experimental results show that the separation property between wheels and workpiece in UVAG process contributes to alter the material removal process, reducing the chip clogging and adhesion. In addition, the micro-fracture of abrasive grains can effectively improve the self-sharpening ability of abrasive wheels. UVAG possesses a shorter grinding scratch owing to the ultrasonic vibration than that of CG, which is beneficial to improve machining quality under the same wheel. Meanwhile, in comparison of WA wheels, MA wheels have the narrower grinding marks and better surface quality, which is due to the sharp edges produced by its higher strength, toughness, and excellent self-sharpening. [ABSTRACT FROM AUTHOR]

In the process of double-sided grinding, the grinding temperature, wheel wear, wheel clogging, and other problems will affect the final machining quality. The use of grinding fluid is an important means to reduce grinding temperature and improve machining quality. At present, the research on the flow characteristics of double-sided grinding is not deep enough, resulting in the waste of resources, increased costs, and low product qualification rate. In this paper, the double-sided grinding experiment was carried out to verify the importance of the grinding fluid for cleaning and cooling the wheel. On this basis, the distribution of grinding fluid in the grinding area and the flow and flow rate of grinding fluid passing through the grinding area under different process conditions were simulated and calculated. Finally, the cooling and cleaning effects of grinding fluid on the grinding wheel were simulated and analyzed, and two improvement schemes on the shape of the slots were proposed. The results show that a large part of grinding fluid is useless in the process of double-sided grinding. The flow of the useless grinding fluid can be reduced by changing the process parameters and the size of the slot. When the improved grinding wheels are used for grinding, the efficiency of grinding fluid can be effectively improved. [ABSTRACT FROM AUTHOR]

Academia, and economics in particular, faces increased scrutiny because of gender imbalance. This paper studies the job market for entry-level faculty positions. We employ machine learning methods to analyse gendered patterns in the text of 12,000 reference letters written in support of over 3,700 candidates. Using both supervised and unsupervised techniques, we document widespread differences in the attributes emphasised. Women are systematically more likely to be described using 'grindstone' terms and at times less likely to be praised for their ability. Using information on initial placement, we highlight the implications of these gendered descriptors for the quality of academic placement. [ABSTRACT FROM AUTHOR]

Non-abrasive iron-based grinding diamond wheels, lacking abrasive particles, negate the concern of detached passivated abrasives scratching the polished surface. During the Electrolytic In-Process Dressing (ELID) polishing process, α-Fe2O3 particles form on the oxide film surface of the iron-based grinding diamond wheel devoid of abrasives. These particles assume the role of the grinding diamond wheel for polishing. Therefore, the ELID electrolytic performance and the oxide film formation performance of the non-abrasive iron-based grinding diamond wheel significantly influence the formation of α-Fe2O3 particles and the subsequent ELID polishing performance. Our studies investigating the ELID dressing behavior of the non-abrasive iron-based grinding diamond wheel have analyzed the influence mechanism of the electric field, flow field, and pulse energy on its ELID dressing. Moreover, the roundness of the ELID dressing grinding diamond wheel, oxide film properties, and α-Fe2O3 particle content were measured, and plate glass was polished using the ELID non-abrasive iron-based grinding diamond wheel. The results illustrate that the non-abrasive iron-based grinding diamond wheel exhibits excellent ELID dressing performance. The diamond wheel's roundness is less than 0.001 mm, the oxide film uniformly covers the surface, the content of α-Fe2O3 particles is evenly distributed, and the surface accuracy of the polished plate glass is approximately 0.5 nm. These findings provide a compelling case for the continued use and development of grainless iron-based grinding diamond wheels in precision grinding operations. [ABSTRACT FROM AUTHOR]

To improve the low efficiency and cumbersome clamping process in the surface processing of optical domes, a vacuum adsorption clamping structure for optical domes was designed. The " two rotations + one swing + micro-feed" processing technology was used to grind and polish the inner and outer surfaces of the optical dome, and a hollow turntable structure was designed. The vacuum negative pressure required for clamping the dome was analyzed and verified, and it was confirmed that the dome would not slip during the processing under this vacuum negative pressure. Workbench software was used to simulate the deformation of the dome-clamping chuck model during the processing. The simulation results show that the deformation of the inner clamping chuck model is larger than that of the outer clamping chuck model under the same parameters. As a chuck material, the deformation resistance of 45 steel is better than that of aluminum alloy. The deformation of the model increases with the increase of grinding pressure, while the vacuum negative pressure and the size of the grinding wheel haveless effect on the model deformation. This research is helpful to improve the quality and efficiency of dome surface processing. [ABSTRACT FROM AUTHOR]

The significant effect of the dressing process on the surface of the grinding wheel (GW) and the need to provide an optimal dressing condition are the requirements of reduction machining time and energy consumption in the sustainable grinding process. In this study, for the first time, the results of changes in the parameters of the dressing process and changes in the topography of the grinding surface on the surface roughness of the Inconel 738 have been presented using single-edge and four-edge diamond dressers. The use of minimum quantity lubrication (MQL) and wet condition are other variables in this study to reduce the consumption of cutting fluid and prevent its destructive effects on the environment. The results indicate that the MQL technique increases the grinding performance of Inconel 738 by reducing ground workpiece surface roughness and decreasing the coolant–lubricant consumption comparing to the conventional wet grinding process. Additionally, it has been found from the experimental results that applying a single-edge dresser generates finer topography on the grinding wheel and, consequently, has a better surface finish in the grinding process compared to the multipoint diamond dressing tool with the same dressing and grinding parameters. In other words, increasing the dressing feed rate during dressing of the grinding wheel using a multipoint dresser makes a finer wheel surface topography and as a result decreases the surface roughness of the ground workpiece compared to a single-edge dresser. With multipoint diamond tools, the grinding performance during the life of the dressing tool also tends to remain more consistent, which is a definite advantage in automated production. Therefore, application of a multipoint dresser leads to a reduction in dressing time and increased production capability. [ABSTRACT FROM AUTHOR]

Precision machining is becoming more and more important with the increasing demands on surface quality for various components. This applies, for example, to mirror components in micro-optics or cooling components in microelectronics. Copper is a frequently used material for this purpose, but its mechanical properties make it difficult to machine. In this study, a process strategy for finishing copper surfaces with batch-manufactured micro-grinding tools in an electrochemically assisted grinding process is demonstrated. The tool heads are manufactured from a polyimide-abrasive-suspension and silicon as a carrier substrate using microsystems technology. The matching shafts are milled from aluminium. The tools are then used on pure copper and oxidised copper surfaces. By using finer abrasives grains (1.6–2.4 µm instead of 4–6 µm) than previously, similar surface roughness values could be achieved (Ra = 0.09 ± 0.02 µm, Rz = 1.94 ± 0.73 µm) with the same grinding process. An optimised grinding process that combines the use of rough and fine tools, on the other hand, achieves significantly better surface finishes in just four grinding iterations (Ra = 0.02 ± 0.01 µm, Rz = 0.83 ± 0.21 µm). In order to achieve a further increase in surface quality, this optimised grinding process is combined with the anodic oxidation of the copper workpieces. The surface modification is done to increase the machinability of the surface by creating an oxide layer. This is confirmed by the results of scratch tests carried out, which showed less force acting on the tool during machining with the oxide layer than with a pure copper surface. To realise this within the machine tool, an electrochemical cell is shown that can be integrated into the machine so that the oxidation can be carried out immediately before the grinding process. The copper layers produced inside the electrochemical cell in the machine tool show similar characteristics to the samples produced outside. Processing the oxidised samples with the optimised grinding process led to a further reduction of about 17% in the Rz values (Ra = 0.03 ± 0.01 µm, Rz = 0.69 ± 0.20 µm). The combination of the shown grinding process and the integration of anodic oxidation within the machine tool for the surface modification of copper workpieces seems to be promising to achieve high surface finishes. [ABSTRACT FROM AUTHOR]

Single-layer brazed superhard abrasive tools have been widely employed in grinding of difficult-to-machine materials in aerospace, aiming at the improvement of the grinding performance and quality. However, the chemical metallurgical reaction during conventional induction brazing (CIB) is severe, and the brazing quality is poor, resulting in a rapid wear and thus reducing service life of abrasive tools. In this case, the single-layer brazed cBN abrasive tools were fabricated using ultrasonic vibration-assisted induction brazing (UVAIB) technology, and the wear comparative experiments of Ti–6Al–4V alloys was carried out using UVAIB and CIB abrasive tools. Results indicate that compared to the CIB abrasive tool, the UVAIB abrasive tool has the higher average exposure height of abrasive grains, lower grinding forces and more stable grinding force ratio during wear processes. Meanwhile, the UVAIB abrasive tool has a slowly decreased exposure height of abrasive grains, a superior wear state and low proportion of macro-fracture as the material removal volume raises. In addition, UVAIB abrasive tool possesses micro-cracks at the top of abrasive grains, leading to micro-fractures of abrasive grains to improve the self-sharpening ability and grinding performance. [ABSTRACT FROM AUTHOR]

Helical flute grinding is an important process step in the manufacturing of cylindrical cemented carbide tools where the use of cooling lubricants is a defining factor determining process performance. Finding optimal parameters and cooling conditions for the efficient use of lubricant is essential in reducing energy consumption and in controlling properties of the boundary zone like residual stresses. Any mathematical model describing the interactions between grinding wheel, lubricant and workpiece during the process has to account for the complex microstructure of the wheel; however, this renders the identification of parameters like slip or heat exchange coefficients numerically prohibitively expensive. In this paper, results from grinding oil droplet experiments are compared with simulation results for the wetting behavior of grinding wheels. More specifically, finite element simulations of the thin-film equation are used to identify slip parameters for different grinding wheel specifications (grain size, bonding structure, wetting status). Our results show that both the bonding and the grain size have an influence on the wetting behavior. The slip parameters that we identified account for the fluid-microstructure interactions and will be used to effectively model those interactions in more complex 3D fluid-dynamic simulations via the Beavers-Joseph condition. [ABSTRACT FROM AUTHOR]

Grooved grinding wheels play an important role in reducing grinding thermal damage. Aluminum oxide grinding wheels of approximately 1 mm slot width and 35% groove ratio were successfully fabricated using a novel reciprocating ultrafast laser scanning mode to improve the grinding stability. Grinding experiments with grooved and non-grooved wheels were conducted on 42CrMo. The cutting mechanisms of grooved structures were analyzed with the established cutting kinematics of the abrasives in the groove edges and the grinding force components model. The decreased grinding forces were observed and analyzed with abrasive cutting mechanisms, indicating that grooved structures can increase the undeformed chip thickness of grains at the slot edges and decrease the specific grinding energy by reducing the specific plowing and sliding energy. The grooved grinding wheels exhibited high performance in inhibiting grinding heat and workpiece burns. The burned workpiece ground with non-grooved wheels experienced a phase transformation and had a high tensile residual stress state on the ground surface and subsurface, while compressive residual stresses were detected on the unburned workpiece surface ground with grooved wheels. Grooved grinding wheels can improve the grinding quality of workpieces due to the lower grinding temperature and residual stress. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Ultrasonic vibration-assisted grinding (UVAG) is a highly effective technique for improving the grindability of difficult-to-cut materials, making it widely applicable in various industrial fields. However, the conventional optimization of grinding parameters necessitates extensive experimental analyses and is susceptible to converging towards a local optimum. A multiobjective particle swarm optimization (MOPSO) model is developed in this study to predict grinding forces and surface roughness based on comparative experiments between UVAG and conventional grinding. Optimized process parameters are utilized to perform experiments on ultrasonic vibration-assisted profile grinding, resulting in a reduction of 20.51% and 18.91% in tangential and normal grinding forces, respectively, as well as a decrease of 9.47% in ground surface roughness. In addition, UVAG can maintain the sharpness of grinding wheels. The MOPSO algorithm yields a Pareto solution set comprising 15 noninferior solutions, indicating that superior surface roughness is achieved by increasing wheel speed and cutting depth while decreasing feed speed. The ultrasonic vibration-assisted profile grinding process enables the formation of workpieces with exceptional shape accuracy and high surface quality, while also optimizing machining parameters. [ABSTRACT FROM AUTHOR]

In this study, a novel design scheme for a power skiving cutter and its grinding wheel profile is proposed based on the geometry of a target circular spline (CS) workpiece. First, a generalized mathematical model of a target CS profile is expressed using a B-spline curve. Subsequently, the nominal cutting edge of the skiving cutter for generating an error-free CS is derived based on power skiving kinematics. In addition, the axial profile of the grinding wheel for generating the derived nominal cutting edge is resolved based on lengthwise-reciprocating grinding kinematics. The proposed design process for the skiving cutter and its grinding wheel is illustrated using numerical examples. The profile accuracy of the CS yielded by the designed nominal cutting edge is computed to validate the proposed design processes. Moreover, errors of the skived CS profile resulting from various resharpening depths by grinding back the stepped rake face of the skiving cutter are investigated. Finally, to effectively extend the tool life of the skiving cutter, a compensation rolling angle is introduced into the CS skiving process. [ABSTRACT FROM AUTHOR]

Additive manufacturing (AM) processes have emerged as alternatives for the production of grinding tools. This article addresses a comprehensive overview on the historical-scientific evolution of the AM production of grinding/abrasive tools and provides future trends in the field. Bibliometric and systematic reviews of the literature verified the technological frontiers of each AM method, indicating current possibilities and potential gaps for future perspectives. [ABSTRACT FROM AUTHOR]

This study investigates and optimizes electro discharge face grinding (EDFG) for processing Monel 400 alloy. The EDFG process is complex, and choosing the appropriate input process parameters is challenging. In this work, the central composite design (CCD) of response surface methodology (RSM) was used to plan the experiments, and analysis of variance (ANOVA) was used to identify the significance of process parameters. This work aimed to assess the influence of grinding wheel speed (GWS) along with other process parameters on response parameters and to optimize the process parameters for the EDFG process. The ANOVA confirmed that GWS significantly affects the response parameters. Finally, the Desirability approach and Genetic algorithm (GA) optimizations were employed and compared to determine the best optimal process parameter settings for the process, with the three different objective function weights related to material removal rate (MRR) and average surface roughness (ASR). The optimum conditions were identified and confirmed through validation experiments. The machined surfaces were also analyzed using scanning electron microscope (SEM) images to assess the effects of the suggested parameter combinations. The study concluded that the GA approach was more effective in optimizing the EDFG process. [ABSTRACT FROM AUTHOR]

In this study, the effects of critical depth of cut and wheel wear were investigated to realize efficient precision grinding of CVD-SiC by ductile mode grinding at low cost. To compare the results under experimental conditions, Vickers indentation tests and grinding experiments were conducted. As a result of the Vickers indentation test at an applied load of 0.015 N, the minimum indentation load in this study, the indentation depth was 1.3 μm, and cracks were observed at the corners of the indentation isotropically. Additionally, the pile-up was observed around the indentation, suggesting that plastic deformation due to shear flow was relatively large. Grinding experiments were conducted using grinding wheels with different grain sizes. All the grinding conditions in this study resulted in a surface with a mixture of brittle and ductile modes. The proportion of ductile modes was larger, and the surface roughness Ra was smaller when a grindstone with a smaller grain size was used. Additionally, the effect of wear was investigated. As wear progressed, the number of protruding grains decreased, resulting in a smaller surface roughness. These results indicate that the amount of protruding abrasive grains must be controlled to achieve stable ductile mode grinding. [ABSTRACT FROM AUTHOR]

To reduce wheel loading caused by chip adhesion in the grinding of titanium alloys, a new method named ultrasonic-assisted plasma oxidation modification grinding is suggested. The processing principle was introduced in this research, and based on that, the experimental apparatus was established. Then, the surface and cross-sectional morphologies of a workpiece with an oxide layer were characterized, followed by the detection of its microhardness and surface composition. On this basis, in the absence and presence of the oxide layer, the dynamic changes in wheel loading on the grinding wheel surface and the evolution behavior of chip adhesion on the grains were both investigated after gradually increasing the grinding passes. Finally, the effects of wheel loading on the ground surface morphologies were analyzed. The results showed that the oxide layer with low microhardness was mainly composed of TiO2 and Al2O3. Moreover, with an increase in grinding passes, the overall occupied area of chip adhesion on the grinding wheel surface increased proportionally in the absence of the oxide layer, which finally caused severe wheel loading. Conversely, yet at almost the same rate, the overall occupied area of chip adhesion increased after remaining comparatively unchanged in a short range of grinding passes in the presence of the oxide layer, which effectively inhibited the wheel loading. Compared with the ground surface obtained without an oxide layer, the generation of plastic-stacking was significantly restrained with the assistance of the oxide layer, thereby improving the ground surface quality. [ABSTRACT FROM AUTHOR]

This study is dedicated toward subtractive manufacturing of difficult to process material, Ti-6Al-4 V through an extensively employed precision abrasive machining operation, grinding. Ti-6Al-4 V is the most extensively used material, which needs grinding during its finishing in many cases. However, grinding of the material is challenging due to the characteristics like high chemical reactivity at higher temperature, high hot-hardness, low elastic modulus, and low thermal conductivity. Due to elevated reactivity at raised up temperature, titanium tends to adhere to the abrasive wheel during grinding thus leading to ineffective cutting performance. Its low thermal conductivity intensifies thermal damage to the bonded abrasives forming glazed grits. The present experimental study deals with finding optimum cutting conditions for enhancing grindability of the alloy that involves optimizing the grinding infeed values for different conventional wheels. The optimized dressing infeed is used in the subsequent grinding operation where enhancement of grinding condition is investigated under the application of cutting fluids. The major considerations of the study are identifying coolants and delivery techniques, which follow sustainable developments, and suitable conventional abrasive grinding wheels. [ABSTRACT FROM AUTHOR]

The airworthiness standards of the transport category airplanes stipulate that the high energy rotor equipment must be of the sufficient containment capacity. It is of great importance to study the containment and weight reduction for the air turbine starter. In this paper, based on an OSF design, Kriging response surface model and MOGA algorithm, a neck structure optimal design method was proposed for the air turbine wheel. Using the optimal design method, the optimal structural parameters were suggested as the design parameters, and verified by the over-speed burst test. The maximum errors of the burst speeds between the experimental and design values are less than 2%, and the neck structure turbine wheel breaks in the neck as expected, validating the accuracy of the optimal design method. Then, the effects of turbine wheel burst modes on the containment were investigated quantitatively, and verified by the containment tests. Based on the experimental and simulation results, the containment design method was proposed for the neck structure turbine wheel. The results show that compared with the trisection wheel burst, the rim burst dramatically decrease the mass and initial kinetic energy of burst released fragments by 63.3% and 24.8%, thereby greatly reducing the thickness and the mass of the containment ring by 29.5% and 29.1%. [ABSTRACT FROM AUTHOR]

The current network for the dual-task grinding wheel defect semantic segmentation lacks high-precision lightweight designs, making it challenging to balance lightweighting and segmentation accuracy, thus severely limiting its practical application in grinding wheel production lines. Additionally, recent approaches for addressing the natural class imbalance in defect segmentation fail to leverage the inexhaustible unannotated raw data on the production line, posing huge data wastage. Targeting these two issues, firstly, by discovering the similarity between Coordinate Attention (CA) and ASPP, this study has introduced a novel lightweight CA-ASP module to the DeeplabV3+, which is 45.3% smaller in parameter size and 53.2% lower in FLOPs compared to the ASPP, while achieving better segmentation precision. Secondly, we have innovatively leveraged the Masked Autoencoder (MAE) to address imbalance. By developing a new Hybrid MAE and applying it to self-supervised pretraining on tremendous unannotated data, we have significantly uplifted the network’s semantic understanding on the minority classes, which leads to further rises in both the overall accuracy and accuracy of the minorities without additional computational growth. Lastly, transfer learning has been deployed to fully utilize the highly related dual tasks. Experimental results demonstrate that the proposed methods with a real-time latency of 9.512 ms obtain a superior segmentation accuracy on the mIoU score over the compared real-time state-of-the-art methods, excelling in managing the imbalance and ensuring stability on the complicated scenes across the dual tasks.

Due to the continuously growing demands from high-added-value sectors such as aerospace, e-mobility or biomedical bound-abrasive technologies are the key to achieving extreme requirements. During grinding, energy is rapidly dissipated as heat, generating thermal fields on the ground part which are characterized by high temperatures and very steep gradients. The consequences on the ground part are broadly known as grinding burn. Therefore, the measurement of workpiece temperature during grinding has become a critical issue. Many techniques have been used for temperature measurement in grinding, amongst which, the so-called grindable thermocouples exhibit great potential and have been successfully used in creep-feed grinding operations, in which table speed is low, and therefore, temperature gradients are not very steep. However, in conventional grinding operations with faster table speeds, as most industrial operations are, the delay in the response of the thermocouple results in large errors in the maximum measured value. In this paper, the need for accurate calibration of the response of grindable thermocouples is studied as a prior step for signal integration to correct thermal inertia. The results show that, if the raw signal is directly used from the thermocouples, the deviation in the maximum temperature with respect to the theoretical model is over 200 K. After integration using the calibration constants obtained for the ground junction, the error can be reduced to 93 K even for feed speeds as high as 40 m/min and below 20 K for lower feed speeds. The main conclusion is that, following the proposed procedure, maximum grinding temperatures can be effectively measured using grindable thermocouples even at high values of table speed.

The bonding strength of abrasive grain on the brazed diamond grinding wheel is the main factor affecting the performance of the grinding wheel. To analyze the influence of different grain sizes and shapes on the grinding stress distribution, the grain wear form and the strength of the brazed joint, the stress theory of variable cross-section beam and the finite element simulation model of single grain brazed joint were established, and the grinding experiment of single diamond abrasive grain was carried out. The results indicated that the grinding force of the truncated octahedron grain exceeded that of the pyramid grain, the normal grinding force ratio of the truncated octahedron grain to the pyramid grain was about 1.49~3.38, while the tangential grinding force ratio was 1.67~2.77. The normal stress and shear stress of the brazed joint decreased with the grain size increasing, the smaller grains generated large stress subjected to the concentration of grinding force and bore greater failure risk at the brazing joint. The magnitude and position of the stress peak directly led to the difference in the abrasive wear form of the pyramid grain and the truncated octahedron grain. The main wear form of the pyramid grain was characterized by the rapid broken and flattened of the sharp angle and then the wear platform appeared, while the wear form of the truncated octahedron with micro-fracture, then the wear platform appeared and moved to the flank face. The wear forms in the simulation were well consistent with the experiments, which could potentially be applied to the grinding wheel design. [ABSTRACT FROM AUTHOR]

Grinding wheel dressing is the key to achieving precision form grinding of GCr15 bearing rings. However, the low dressing accuracy and poor dressing quality of grinding wheels using conventional roller dressing (CRD) are problems that need to be solved urgently. A longitudinal-torsional ultrasonic-assisted roller dressing (LTUARD) method is proposed to achieve high precision and high-quality grinding wheel dressing. A device of LTUARD was developed to investigate the dressing effect of the longitudinal-torsional ultrasonic-assisted roller on the white alumina (WA) grinding wheel. The longitudinal-torsional horn with roller loading was mainly studied during the device development of LTUARD. The geometric dimensions of the longitudinal vibration horn with the large tool head were firstly determined by the set of transcendental equations, and then, the longitudinal vibration was converted to longitudinal-torsional vibration by adding a helical slot in the conical section. Subsequently, the resonant frequency of the LTUARD vibration system was found to be 19827 Hz, and the amplitude ranges of longitudinal and torsional vibration were 0~3 μm and 0~1.2 μm, respectively, through impedance analysis and vibration characteristic testing. The results of dressing and grinding experiments show that the roundness error of WA grinding wheels using LTUARD is 8.55 μm, which is 41.56% less than CRD. The surface roughness Ra of GCr15 bearing rings ground by the WA grinding wheel after LTUARD is 0.32 μm, which is 15.79% lower than the surface roughness Ra ground after CRD, and the surface quality of GCr15 bearing rings ground by the WA grinding wheel after LTUARD dressing is better. The reliability and practicality of the developed dressing device were verified by the results of dressing and grinding experiments. [ABSTRACT FROM AUTHOR]

Laser processing has its advantages of high energy density, good controllability, and high flexibility; it has shown its importance in advancing modern manufacturing. Laser processing is used in this paper to fabricate an end grinding wheel with orderly arranged abrasive particles, and the performance of the fabricated grinding wheel is compared with that of a conventional grinding wheel. Our experiment and comparative studies have drawn the conclusions of (1) active laser brazing has been successfully used to arrange diamond particles in Archimedes' spirals; (2) the resulted grinding wheel has shown the enhanced effectiveness in comparison with the conventional grinding wheel in terms of reduced grinding force; when the spiral change rate i is set 0.25, the tangential grinding force has been reduced by up to 60%; (3) for a grinding wheel with specific spiral change rate, ground debris are discharged from the grinding zone in a certain direction, and the grinding temperature can be reduced; (4) in high-speed grinding, the surface quality by the grinding wheel with orderly arranged abrasive particles is better than that of conventional grinding wheel; under the tested grinding conditions, the roughness of the ground surface has been reduced up to 47% of that by conventional grinding wheels; (5) the grinding wheel with orderly arranged abrasive particles has shown the better wear resistance that conventional grinding wheels; abrasive particles of all four conventional grinding wheels are damaged to certain extent but orderly arranged abrasive particles on the fabricated wheel maintain mostly their protruded heights. [ABSTRACT FROM AUTHOR]

The purpose of the current study is to distinguish the performance of mechanically refined abrasive grits and artificial diamonds in the fly milling and grinding configurations. The abrasive grits are mechanically refined, cast (aluminum oxide) and grown (diamond). The fly milling method is used to characterize the performance of grits, which are then compared with grits bonded together to form a grinding wheel. The purpose of the comparison is to show the effect of the bonding system on the wear of single grits and grinding wheels. The article shows that diamond is the highest-performing abrasive for non-ferrous metals but does not perform well at high cutting speeds on ferrous metals compared to aluminum oxide grits. The conclusions show that the performance of grits bonded together is much lower than the performance of single abrasive grits and is dependent on workpiece chemistry, the composition of the bonding system, and key operating parameters such as the depth of cut and cutting speed. [ABSTRACT FROM AUTHOR]

Copyright of China Mechanical Engineering is the property of Editorial Board of China Mechanical Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Carbon fiber reinforced plastic (CFRP) is used in various industries because of its high specific strength, but it is well known as a difficult material to cut. In this study, we developed a disc-shaped electrodeposited diamond wire mesh grinding wheel as a new method for cutoff and grooving with a large aspect ratio for CFRP. We confirmed that this tool could be used for machining at a feed rate of 1000 mm/min, equivalent to that of an abrasive waterjet. This tool discharges generated chips through the spaces in the wire mesh, preventing clogging and thereby enabling the suppression of machining temperature. No burrs or delamination were observed on the surface machined with the wire mesh grinding wheel, and the surface roughness was Ra = 2.76 µm. However, the groove width was larger than the wheel thickness due to the runout of the wheel. Additionally, the moderate elasticity and durability of the tool suggest that it might extend tool life by avoiding the crushing of abrasive grains. [ABSTRACT FROM AUTHOR]

Ultrasonic-assisted electrolytic in-process dressing (ELID) grinding can be used in the high-efficiency and high-precision machining of difficult-to-process materials. This paper establishes a prediction model of oxide film thickness growth. We conducted ultrasonic-vibration-assisted experiments on an electrolytic cast-iron-bonded grinding wheel and carried out high-speed steel ball friction and wear tests. The mechanical properties and surface morphology of the oxide film were characterized by nanoindentation, SEM, and three-dimensional morphology. The relative error between the theoretical model and the measured data did not exceed 7%. With the increase in oxide film thickness, the oxide film on the surface of the cast-iron-bonded grinding wheel became looser, the film surface exhibited more defects, and the hardness and elastic modulus of the oxide film were far lower than those of the cast-iron-bonded grinding wheel substrate. The adhesion of the oxide film first increased and then decreased with the increase in film thickness; the complete peeling distance increased with the increase in film thickness. The thicker the oxide film was, the more likely it was to fracture and fall off, the larger the average coefficient of friction (COF), the higher the wear rate of the cast-iron-bonded grinding wheel, and the lower the cast-iron-bonded grinding wheel's service life. [ABSTRACT FROM AUTHOR]

The surface topography of laser dressed diamond wheel is different from that of conventional methods, including grain uniformity, grain protrusion height, and grain state, all of which signally affect the wheel grinding performance. This paper focused on the influence of the topography of the laser dressed resin-bond diamond wheel on grinding performance. The resin-bond diamond wheel was dressed with different laser conditions, and the wheel topographies were observed. The cemented carbide workpieces were ground by the wheel with different topographies, while the grinding force and the surface roughness were measured to evaluate the grinding performance. In the comparative experiment, the difference between laser dressing with mechanical dressing was discussed. The results showed that the average laser power had the greatest effect on wheel surface topography and thus influenced the grinding performance. The appropriate laser dressing conditions were that the average laser power was 10 W, the pulse frequency was 100 kHz, and the spot overlapping ratio was 50% in this work. The diamond wheel had better grain integrity and could accurately control the protrusion height by the laser dressing process, while with the mechanical method, there were defects such as abrasion, fracture, and falling off. The laser dressing allowed for better wheel topography and grinding performance. [ABSTRACT FROM AUTHOR]

Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Ball burnishing is a very promising alternative to grinding because of it produces little environmental pollution. It can cause improvement of the functional properties of machine parts, such as friction and wear. The connection between the ball burnishing and the lubricated fretting has not been analysed yet. In this study, it was found that ball burnishing discs from titanium alloy Ti6Al4V caused a decrease in the height of the roughness up to 84% and an increase in the microhardness up to 26% compared to the turned surface. Tribological experiments were carried out under lubricated fretting conditions. Ceramic balls from WC material co-acted with the burnished discs. Ball burnishing resulted in significant improvement in the tribological behaviour of the ball-on-disc sliding pair. Due to ball burnishing, the friction coefficient decreased up to 45% and the volumetric wear of the disc decreased up to 50% compared to the turned disc. The smallest friction and disc wear were achieved for the sample burnished with a pressure of 30 MPa; this sample was characterised by a low roughness height and great microhardness. The turned disc sample corresponded to high friction and wear. Wear losses of the balls were negligible due to the large difference between the hardness values of the balls and discs. [ABSTRACT FROM AUTHOR]

The sustainable industry is becoming a global trend that aims to align productivity, quality, and environmental preservation. In the grinding process, the need arises to develop new technologies to replace cutting fluids, which are highly toxic substances. The minimum quantity of lubrication (MQL) technique is alternative lubrication and cooling method that makes machining more ecological. However, its application is still tiny due to its low cooling power and cleaning of the workpiece-tool interface. On the other hand, the grinding conditions improve when associated with the wheel cleaning jet (WCJ) system, which consists of applying an inclined compressed air jet on the grinding wheel, avoiding clogging and the adhesion of chips on the surface of the grinding wheel. From this perspective, this work aims to perform a comparative analysis between the flood method and the MQL and MQL + WCJ techniques, in the external cylindrical grinding of alumina ceramic (Al2O3), at feed rates of 0.25, 0.50, and 0.75 mm/min. The output parameters analyzed will be diametrical wheel wear, G-ratio, surface roughness, roundness error, grinding power, cost, and pollution analysis. The G-ratio was 40% better using MQL + WCJ compared to MQL, while the grinding cost per piece with MQL + WCJ represented about 24% of the price of the conventional method. The results show that the association of WCJ to MQL improves the efficiency of the MQL technique, guaranteeing good results and being an eco-friendly technique. [ABSTRACT FROM AUTHOR]

Monitoring the dressing operation of grinding wheels is crucial for optimizing the grinding process and ensuring quality outcomes. This study presents a novel data-driven method utilizing piezoelectric diaphragm signals, combined with the root mean square deviation index (RMSD) and power spectral density (PSD), to determine the optimal moment for interrupting the dressing operation of conventional aluminum oxide grinding wheels. By addressing the existing gaps in transition methods between dressed and undressed grinding wheels, as well as exploring untested metrics in digital signal processing, this research expands the use of alternative piezoelectric transducers for monitoring dressing. The proposed methodology utilizes a commercial acoustic emission (AE) sensor as a reference and employs experimental dressing tests to validate its effectiveness. The signals from both the AE sensor and the piezoelectric diaphragm are collected and subjected to digital processing to extract relevant features based on the proposed approach. Results demonstrate that the RMSD index successfully extracts information about the cutting surface conditions of the grinding wheel from signals obtained by both AE sensors and piezoelectric diaphragms. Furthermore, by selecting frequency bands that exhibit strong correlations with the grinding wheel's cutting surface conditions, a threshold is defined, enabling timely interruption of the dressing operation, thereby ensuring the restoration of the grinding wheel for continued use in grinding applications. Ultimately, this study showcases the feasibility of a non-invasive method for monitoring the dressing operation of conventional grinding wheels, contributing significantly to the optimization of the grinding process. [ABSTRACT FROM AUTHOR]

Industrial-robot assisted abrasive cloth wheel polishing blades aim to reduce surface roughness and improve machining consistency of blades. Since the blade is the complex free-form surface, the blade surface after offline programming has "over-polishing," "under-polishing," and machining allowance uneven phenomenon. In this paper, fuzzy impedance force control technology is proposed to solve the precision problem in the blade polishing process. First, the position-based impedance control algorithm is analyzed, and reasonable impedance parameters are obtained based on the actual robot model. Then, the fuzzy variable impedance control combining fuzzy theory and impedance control is proposed to solve the problems of poor trajectory tracking ability and force instability, when the traditional impedance control faces environmental changes and unknown environments. Finally, the simulation platform is built with the help of MATLAB Simulink tool to verify the effectiveness and rationality of the strategy, and the comparative experiment is conducted for robot-assisted abrasive cloth wheel polishing blade under fuzzy variable impedance force control and without force control. The results show that after superimposing the displacement compensation controlled by the fuzzy variable impedance force on the blade surface, the blade surface roughness is below 0.4 μm, the polishing machining allowance is within ± 0.06 mm, and the uniformity and consistency of the blade polishing surface are better. [ABSTRACT FROM AUTHOR]