【摘要】 数控车削加工中刀具的圆弧半径对切削力,切屑的断屑,切屑的形状,加工表面质量、加工变形以及已切削表面的残余应力的大小,状态,分布有着很大的影响。本文采用有限元分析方法,利用有限元增量理论,建立了二维金属切削仿真模型,分析中采用网格自适应准则,模拟了典型零件车削二维切削过程中切屑的形成,得到了加工后已加工表面的残余应力的大小,状态以及分布状况,对于工程中的实际应用具有重要的意义。更多还原

【Abstract】 In the latheing process,the cutting corner radius influences cutting forces,chip breaking,chip shaping,surface quality,machining deformation and the distribution status of residual stress.Adopted the analysis of Finite Element Method(FEM),based on the orthogonal cutting process,the reasonable two-dimension milling model is established in this paper,which uses the adaptive meshing criteria.This paper simulates a typical work-piece chip breaking process,which gets the total status of residual stress distribution and the status,which is very significant in engineering.更多还原