PRACTICAL RECOMMENDATIONS FOR STAINLESS STEEL TURNING

The article discusses the current problem of increasing the efficiency of metalworking by choosing the optimal cutting modes and evaluating the wear resistance of indexable inserts during stainless steel turning.Austenitic stainless steels, with their high strength, toughness, and heat resistance, place increased demands on cutting tool, making their machining particularly important for modern production.The theoretical part of the work allowed us to reveal the physical and mechanical properties of stainless steel, determine the types and mechanisms of wear of the cutting tool, and analyze the influence of the design features of the indexable inserts and cutting conditions on the wear process.Special attention was paid to the effect of cutting speed, feed rate, and cutting depth on the intensity and nature of edge wear.During the experimental part, specific cutting modes were selected, tests were conducted on a CNC lathe, and modern methods of wear measurement and analysis were used, including optical microscopy and digital indicators.It has been established that the gentle mode provides maximum durability of the cutting tool, but it is characterized by low productivity.The intensive mode, on the other hand, produces high metal removal, but it is accompanied by rapid destruction of the cutting edge.The most effective mode was the medium mode, which provided an optimal balance between cutting tool durability and machining speed.Based on the data obtained, practical recommendations were formulated for production conditions, including requirements for cutting tool selection, cooling, and control conditions.The paper also calculates the durability of the cutting tool using empirical models and justifies the intervals for replacing the tool in order to reduce downtime and increase the reliability of the process.Impact Factor: ISRA (India) = 6.317ISI (Dubai, UAE) = 1.582GIF (Australia) = 0.564 JIF = 1.500SIS (USA) = 0.912 (Russia) = 0.191 ESJI (KZ) = 8.100 SJIF (Morocco) = 7.184 ICV (Poland) = 6.630PIF (India) = 1.940IBI (India) = 4.260 OAJI (USA) = 0.350 Philadelphia, USAThe obtained results can be applied in the practice of machine-building enterprises during the development and adjustment of technological processes for difficult-to-machine material turning.The proposed recommendations allow for increased production efficiency, extended cutting tool life, and reduced production costs.