Abstract

This paper analyzes force received by chip in process of machining the stainless steel 1Cr18Ni9Ti. The force state was analyzed respectively when cutting edge wear, groove wear, boundary wear of the minor cutting edge and the groove wear occurred. Based on analyzing the effects of cutting force changes on chip type, the effect law of tool wear upon the changes of chip type was obtained. Cutting experiments were carried out and the high-speed camera and the piezoelectric force measurement instrument were used to obtain cutting force data to verify the influences of tool wear on the changes of chip type. The research results provide the theoretical foundation for solving the key technical problems of tool breakage in the automated production.

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