物理断裂准则应用于高速切削的研究  

Application of physical fracture criteria to high speed cutting

作　　者：朱传敏[1] 徐静[1] 许田贵[1] 程飞波[1] 

机构地区：[1]同济大学现代制造研究所,上海201804

出　　处：《现代制造工程》2009年第11期61-64,共4页Modern Manufacturing Engineering

摘　　要：基于高速切削有限元模型,参照更新的拉格朗日方法在低速切削加工中的应用,将金属物理断裂准则运用于高速切削的模拟中。通过仿真分析和比较在设置物理断裂准则和几何断裂准则的两种高速切削仿真情况下,X,Y方向切削力及切屑形成的变化发现,设置了物理断裂准则的高速切削仿真得到的数据更接近实验数据,且切屑成形也与实际情况符合。Based on the finite element model of high speed cutting and the application of updated Lagrangian formula in low speed cutting, metal physical fracture criterion is applied to the simulation of high speed cutting. Analyzing and comparing the cutting force and chip formation in direction X and direction Y, in the conditions with physical fracture criterion and geometric fraction criterion, find that the data from the simulation with the physical criterion is closer to the experimental data, and the chip formation is consistent with the real conditions.

关 键 词：断裂准则 高速切削 有限元仿真 切屑成形 切削力 

分 类 号：TG506.1[金属学及工艺—金属切削加工及机床]