Analysis of Generation and Curling Deformation Mechanism of Large Chips in Heavy-duty Cutting

摘要

In heavy-duty cutting, large chips produced are wide, thick and of complex shapes. If the large chips are not controlled reasonably they will heavily influence the machining efficiency. This article researches on the generation process of large chips, and is combined with the research method of finite element simulation to establish curling model of large chips in heavy-duty cutting process. Through analyzing the fracture strain and cut strain suffered by the chips in the curling process of large chips and enlarging the large chips using electron microscopy, the generation and curling deformation law is revealed. And analyzing generation and curling mechanism of large chips can provide theoretical basis for the generation and control of ideal chips in heavy-duty cutting process.