A REVIEW AND ANALYSIS OF THE INFLUENCE OF TECHNOLOGICAL PARAMETERS ON THE EFFICIENCY OF PROCESSING HARD-TO-MACHINE MATERIALS

The article analyzes modern technologies for machining workpieces of hard-to-machine materials with a hardness parameter higher than 45 HRC (Rockwell hardness). It is shown that the mechanics and thermodynamics of the forming process in such materials are subject to specific laws of cutting theory, which have systemic differences from the processing of traditional engineering materials. The advantages and disadvantages of machining chromium-nickel alloys using CNB inserts instead of grinding are analyzed. The influence of the cutting tool geometry during the machining of hard-to-machine materials is shown.

cutting process
hard-to-machine material
tool geometry
chrome-nickel alloy
сила різання
shear zones
residual stress
surface roughness.
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