TECHNOLOGICAL REGULARITIES OF IMPROVING ACCURACY AND PRODUCTIVITY OF MECHANICAL PROCESSING

• Published in: Bulletin of the National technical university "Kharkiv Polytechnic Institute" Series: Techniques in a machine industry no. 2; pp. 64 - 71
• Main Authors: Nоvikоv, Fеdir, Polyansky, Vladimir
• Format: Journal Article
• Language: English
• Published: 02.10.2022
• ISSN: 2079-004X
• DOI: 10.20998/2079-004X.2022.2(6).09

An updated mathematical model for determining the elastic displacements that occur in the technological system during machining, which summarizes the analytical description of the elastic displacement during grinding and blade machining. This allowed us to establish that the smallest elastic displacements can be ensured during grinding by significantly exceeding the speed of the cutting speed during blade machining. However, the energy consumption of processing is much higher (up to 10 times) than with blade processing, which limits the technological capabilities of grinding. Therefore, in finishing operations to effectively use the technology of blade processing. This is especially true of high-speed cutting technologies, which from a kinematic point of view are not inferior to grinding and provide a reduction in elastic displacements, energy consumption and increase the accuracy and productivity of processing. It is established that processing of openings in several passes is expedient to carry out drills with various diameters, increasing diameter on passes. It is shown that it is easier to ensure the required accuracy when boring than when machining with axial tools. By milling holes, an even greater increase in machining accuracy and productivity can be achieved.