Investigation of the effect of cutting tool cutting form, nose radius and cutting parameters on cutting force, surface roughness and tool wear in milling of 17-4 PH stainless steel

In this study, the effects of cutting tool cutting forms, cutting tool tip radius and machining parameters on cutting forces, surface roughness and tool wear were investigated experimentally in milling 17-4 PH stainless steel. Three different cutting speeds (70, 140, 210 m/min), three different feed rates (0.06, 0.09, 0.12 mm/rev) and constant cutting depth (1 mm) were taken as machining parameters. In the experiments, two different cutting forms (M-ML) and two different tip radius (0.4 - 0.8 mm) inserts were used. Cutting temperature, cutting forces, surface roughness of machined surfaces and tool wear values were measured during chip removal, and the obtained data were evaluated experimentally. As a result of the experiments, 19% lower cutting forces are tools with 0.4 mm tip radius are 16% lower cutting forces compared to cutting tools with 0.8 mm tip radius. measured. Cutting forces decreased with increasing cutting speed and increased with increasing feed rate for all cutting tools. Cutting temperatures increased for all cutting tools with increasing cutting speeds and feeds. The lowest cutting temperatures were measured with cutting tools ML cutting form with 0.4 mm tip radius. Surface roughness decreased with increasing cutting speed and increased with increasing feed rate. The lowest surface roughness was obtained with ML cutting form cutting tools with 0.8 mm tip radius. While ML-shaped cutting tools have been found to have 16% lower tool wear compared to M-shaped cutting tools, with 0.4 mm tip radius cutting tools, 8% lower tool wear than cutting tools with 0.8mm tip radius. has been found to occur. Tool wear increased with the increase in cutting speed and feed rate, and tool wear increased with the increase in chip volume.