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Control of Machining of Axisymmetric Low-Rigidity Parts
Control of Machining of Axisymmetric Low-Rigidity Parts
- Source :
- Materials, Volume 13, Issue 21, Materials, Vol 13, Iss 5053, p 5053 (2020)
- Publication Year :
- 2020
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2020.
-
Abstract
- The specific character of the process of machining of axisymmetric low-rigidity parts makes it difficult to obtain finished products with a required accuracy of shape and dimensions and surface quality. The methods traditionally used to achieve accuracy in the machining of low-rigidity shafts considerably reduce the efficiency of the process, fail to meet modern automation requirements, and are uneconomical and not very productive, which means new methods for controlling the machining of low-rigidity shafts need to be looked for. This article presents a structural and a calculation scheme of a machining system for the turning of low-rigidity parts and a control model based on the second-order Lagrange equation. The first section of this paper presents qualitative relationships among variables in the proposed technological system for machining axisymmetric low-rigidity parts. Moreover, schematic of the machining system for the processing of such parts as well as equations describing the energy state of the machining system is presented. Next, mathematical model of optimal system control during the machining process, which permits to control a system under specific conditions and obtains a higher shape accuracy were introduced. The key stage of the verification process concerns the numerical validation of proposed solutions. Experimental studies confirm that the utilization of the proposed mathematical models describe the properties of the original object with sufficient accuracy and allow to obtain a higher machined shaft shape accuracy.
- Subjects :
- 0209 industrial biotechnology
low-rigidity
Computer science
Mechanical engineering
Rigidity (psychology)
02 engineering and technology
lcsh:Technology
Article
stiffness
020901 industrial engineering & automation
0203 mechanical engineering
Machining
medicine
General Materials Science
lcsh:Microscopy
lcsh:QC120-168.85
Mathematical model
lcsh:QH201-278.5
business.industry
low-rigidity, stiffness, machining, control, cutting force, stability
lcsh:T
Process (computing)
Stiffness
Schematic
stability
Automation
020303 mechanical engineering & transports
lcsh:TA1-2040
Control system
cutting force
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
medicine.symptom
business
lcsh:Engineering (General). Civil engineering (General)
lcsh:TK1-9971
control
machining
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....b4e350bed9e3768ea1960aff320f9e6d
- Full Text :
- https://doi.org/10.3390/ma13215053