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To examine the microstructure and wear behaviour of the composite material Making aluminum-boron carbide composites is necessary due to the growing need for lightweight materials in emerging industrial applications. In this case, aluminium alloy-boron carbide composites with different particle weight fractions were produced using liquid metallurgical procedures. Due to its extreme hardness (it is the second-hardest material after diamond), (5.3 Mpa.m1/2, density 3.5g/cm3) and boron nitride (melt.pt: 29730C, density 3.45g/cm3)), boron carbide (fracture toughness 3.5 Mpa.m1/2) is a ceramic material that could be an alternative to SiC (melt.pt: 27300C, density 3.21g/cm3). High strength (melt point: 27630C, boiling point: 35000C), The desirable properties of boron carbide are low density (2.52 g/cm3), extremely high hardness, exceptional wear resistance, and strong chemical stability. Composites with low density are becoming more and more popular. [ABSTRACT FROM AUTHOR]

As a result of its high mechanical and corrosion-resistant qualities, SS304 is utilised in a wide variety of applications within the industrial sector. The purpose of this research is to use TOPSIS optimisation in conjunction with a L9 orthogonal array to achieve the best possible surface polish, material removal rate, tool wear, and overall energy consumption when machining SS304. In order to carry out the trials, dry machining conditions were utilised, and a CNC turning centre fitted with carbide inserts was utilised. An examination was carried out on the machining variables of cutting speed, feed rate, depth of cut, and MQL (minimum quarter-inch length). While a roughness tester determined the degree to which the surface was smooth, a scale determined the rate at which material was being removed. Both an optical microscope and a power metre were utilised in order to keep track of the amount of power that was consumed throughout the process. With the help of topology optimisation utilising experimental data sets (TOPSIS), we were able to home in on the most effective combination of machining parameters. According to the findings, improving surface smoothness, material removal rate, and tool wear while simultaneously optimising multiple machining parameters simultaneously leads to a reduction in overall energy usage. This work offers new insights into the machining of SS304 as well as the optimisation of machining parameters by employing TOPSIS in conjunction with a L9 orthogonal array. These findings have the potential to assist in the effective machining of SS304 for use in industrial applications. [ABSTRACT FROM AUTHOR]

Conventional machining techniques for super alloys have a number of drawbacks, including increased heat-affected area, poor surface quality of the completed product, and tool wear. The use of unconventional methods consisting of various machining processes like laser beam, electrochemical, plasma arc, electric discharge can reduce these problems. Anodic disintegration is the underlying concept of electrochemical micromachining (ECMM). The ECMM technology makes it simple to machine materials that are challenging to work with. The manufacturing sectors of pharmaceuticals and perforated orifices are where super alloy is used in micro-domains. The present research used the ECMM technique to carry out micro-drilling on super alloy. During micromachining, a super alloy, the effects of two distinct electrolytes, which sodium chloride (non-passivating) and sodium nitrate (passivating), were examined. To achieve the highest material removal rate (MRR), the Response surface methodology (RSM) technique was suggested. With the use of desirability evaluation, the output response MRR was examined. [ABSTRACT FROM AUTHOR]

The Magnesium (Mg) based metal matrix composites (MMC) are fabricated using many techniques like powder metallurgy, stir casting, squeeze casting, etc., to improve the mechanical, physical and chemical properties of magnesium MMC. This research is mainly intended towards fabrication and characterization of the hybrid metal matrix composite (MMC) of Magnesium using powder metallurgy technique. Magnesium is a widely used metal especially in the field of automotive industries as it is got some unique features like low density, corrosion resistance and good strength to weight ratio. The hybrid composite is fabricated by reinforcing pure magnesium (Mg) with alumina (Al2O3) and boron carbide (B4C) particles of different proposition (5%, 10%, and 15%) using powder metallurgy technique. The machining control parameters (cutting speed, feed rate and depth of cut) are designed using design of experiments (DOE). The constructed MMC is machined in a WEDM machine in accordance with the design to acquire output responses like MRR and surface roughness. The input control parameters, such as pulse on time, pulse off time, voltage, and current, are to be optimized using Surface Response Methodology (RSM) to get high MRR and LOW surface roughness. The confirmation experiment is then conducted to confirm the results. [ABSTRACT FROM AUTHOR]

The machinability of nickel aluminium bronze with abrasive water jet machining technique is the subject of this paper. Three separate parameters are used in this machining process, including standoff distance at three different levels, transverse speed of abrasive flow rate, and water jet pressure. The examination of kerf width, surface roughness, and material removal rate (MRR) forms the basis of the machining. Examining surface morphology and material removal techniques also include using images from scanning electron microscopes (SEM), optical images, and surface roughness images. Water jet pressure and velocity were determined to be most influential factors. [ABSTRACT FROM AUTHOR]

The need for increased new substances has been prompted by the rising demand for engineering substances and material properties in the areas of modern manufacturing technology, such as improved durability, toughness, resistance to heat, durability under fatigue load, and durability against wear. Polymer matrix composites often offer superior strength with a high modulus, improved high-temperature durability, and wear resistance relative to their monolithic metal equivalents. Considering their expensive production costs, PMCs are appropriate for the boat, sports utility, and automotive sectors owing of their excellent thermomechanical characteristics. The structural behaviour of composites made of polymer matrix is going to be assessed in the current investigation. coir-based and sugarcane fibre will be used to strengthen this polymer matrices composite. Both of the composite are created utilising GFRP and fibres from sugar and coir. In this research, the effects of impact load, tensile strength, and flexibility will be investigated. The structural behaviour of the two composite hybrids is investigated and compared. [ABSTRACT FROM AUTHOR]

It is obvious that there would be more occupational accidents as the sector develops. The enhancement of safety and health conditions to either prevent or reduce the overall frequency of these events. Detecting gas leaks is one of the safeguards that must be performed for safety as well as health. Prior to a potential fire. Various toxic Gases are present in different levels around the mine which posses a potential thread to life. In this research, we present a new mobile robotics technology that employs a mobile robot for hazardous environment navigation to locate and map the concentrations of several gases that are considered harmful in coal mines and industrial settings. [ABSTRACT FROM AUTHOR]