Optimization of the polishing mode by scratching diamond-like PVD coating


Аuthors

Avdonin K. A.

Yuri Gagarin State Technical University of Saratov, 77, Politechnicheskaya str., Saratov, 410054, Russia

Abstract

This article presents a novel and effective technique for optimizing the polishing mode of diamond-like PVD coatings by employing the simplex method, which is widely recognized as a powerful tool for solving linear programming problems. The optimization process is firmly grounded in regression dependencies derived from extensive and detailed experimental studies, enabling the construction of a comprehensive system of inequalities that accurately determine the optimal polishing conditions. The maximum productivity of the polishing process was selected as the primary target function, serving as a crucial and practical criterion for serial and large-scale industrial production, especially in the context of developing high-quality and durable cutting tools. The research findings clearly indicate that, while maintaining an acceptable level of surface roughness of Ra ≤ 0.04 µm, the optimal polishing conditions are established as follows: a longitudinal feed rate of 400 mm/min, a transverse feed of 1.0 mm, and a tool rotation speed of 2000 rpm. These carefully determined parameters guarantee maximum process efficiency, which is essential for significantly enhancing the competitiveness and marketability of products in the highly demanding marketplace. Therefore, the results of this comprehensive study hold significant potential for substantially improving the efficiency and quality of the diamond-like coating processing process, which is of great importance for mechanical engineering, the production of cutting tools, and various other high-tech industrial sectors. Furthermore, this adaptable technique can be modified and applied to a wide range of processing conditions, thereby opening up new and promising avenues for further research, development, and innovation in the field of technological process optimization, as well as facilitating the seamless integration of cutting-edge technologies into modern production practices.

Keywords:

diamond coating, polishing, surface roughness, polycrystalline diamond, optimization, PVD coating

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