Evaluation of the stressed state of cutting elements of coated end-milling hard-alloy combined cutters

This paper compares stresses arising in the tool material of combined end-milling cutters and their admissible values with purpose preventing cutter destruction. The limit stress materials for developed endmilling hard-alloy having an interfaced cutting part tailpiece were investigated. was made a tool-grade hard alloy, structural steel. To determine stresses, simulation modelling carried out ANSYS Deform software. force components found experimentally. It assumed that lower lead to material. results probability process hard-to-cut stainless steel 12Kh18N10T considered at following parameters: speed 70 m/min, depth 1 mm, feeding 0.1 mm/tooth. VK8 no coating various coatings promoting reduction studied. confirmed 16 mm diameter 92 long can be used cut parts same accuracy as using solid cutter. An increase length decreases accuracy; however, lengths 123 180 these manufacture applied general machine building. Therefore, compete terms manufacturing resilience period, which limits existing applicability cutters. cost is 10–60% than