金属切削过程是切削层金属的塑性变形和断裂过程。
Metal cutting is the process of plastic deformation and fracture.
利用有限元软件A NSYS 模拟出了金属切削的动态过程，同时获得已加工表面的加工硬化变形图及其数值解。
The dynamic process of metal cutting is simulated by using FEM software ANSYS. At the same time, the deformation graphics of surface hardening and its numerical solution are obtained.
金属切削是一个伴随着高温的塑性大变形过程，在加工表面往往产生高达几百兆帕的残余应力。
Metal cutting generally involves a large amount of plastic deformation and is coupled thermomechanical process. It always comes with several hundred MPa of residual stresses on the machined surface.
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