Influence of Groove Structure of 316L Stainless Steel Turning Inserts on Cutting Performance
316L has excellent corrosion resistance and is currently the most widely used austenitic stainless steel.In this paper,316L stainless steel was taken as the research object,and four cemented carbide inserts of EM(large rake angle),SM3(small chip angle),MM(small rake angle,and SF(large chip angle)with different groove structures were selected to be processed under the parameters of semi-finishing machining.The influence of different groove structures of stainless steel turning inserts on cutting performance was studied.The results show that the EM and MM inserts have the lowest cutting force.A smaller chip angle of the insert groove indicates a lower cutting force.Combined with the characteristics of the groove,it shows that the reasonable double rake angle design is conducive to reducing the cutting force,and the chip breaking ability of the inserts is mainly related to the size of the chip angle and the feed.In addition,when the chip angle is designed at 20°,good chip breaking performance can be obtained without causing a significant increase in the cutting force.The MM insert has good surface roughness under small feed and cutting depth,but it is significantly affected by the process parameters.The surface roughness of the EM insert is the most stable.According to the wear of the four inserts,the EM insert has the best anti-wear performance under the process parameters of semi-finishing machining.
NETL
NSTL
万方数据
维普
