摘要
利用非线性有限元方法研究镍基合金高速切削过程。在平面应变状态下,通过对材料本构模型、边界条件与接触摩擦模型,以及网格划分环节进行处理,建立有限元直角正交二维切削模型。采用不同刀具前角、切削深度条件对镍基合金直角切削过程进行模拟和试验,分析得出直角切削过程中不同刀具前角和切削深度时切削力、剪切角变化情况,为选择合适的切削参数、提高切削质量提供理论依据。
Nonlinear finite element method is used to investigate the high speed cutting process of nickel-base alloy. Treatment steps such as material constitutive model ,boundary conditions and model of contacting friction and mesh generation ,2-dimension- al finite element model of metal orthogonal was establish under plain strain state. A couple of numerical simulation had been de- veloped on the nickel-base alloy orthogonal cutting process with different tool rake angles and cutting depth and verified by exper- iments. Some conclusions are obtained including the variationed cutting force and shear angle,theoretical basis for choose suitable cutting parameter and improve the quality of surface.
出处
《现代制造工程》
CSCD
北大核心
2013年第7期46-48,58,共4页
Modern Manufacturing Engineering
关键词
高速切削
有限元模拟
切削参数
剪切角
切削力
high speed cutting
finite element simulation
cutting parameter
shear angle
cutting force
