超高速点磨削中切削速度对工件残余应力的影响  

The Residual Stress Affected by Machining Velocity in Super-high Point-grinding

作　　者：刘月明[1] 巩亚东[1] 仇健[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《制造技术与机床》2009年第7期74-76,80,共4页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金项目(50775032)

摘　　要：结合超高速切削中能量分配的基本原理,得出切削速度与工件残余应力的关系,将超高速点磨削的模型进行转化,形成单个磨粒切削的几何模型,利用Abaqus/Explicit有限元法对切削过程进行仿真,得出已加工表面的残余应力随磨粒切削速度改变和深度改变的变化情况,为超高速点磨削实现高精度加工奠定理论基础。With the basic principle of energy distribution in super high machining, the relation between machining velocity with residual stress could be concluded. The model in super-high point-grinding was transformed into the geometrical model used in machining with per abrasive grain. A simulation model using explicit finite element Abaqus was developed to investigate the residual stress＇ s distribution in a machined layer while different machining velocity and different depth in machined surface, which provide the theory to achieve high precision machining in super-high point-grinding.

关 键 词：超高速点磨削 残余应力 切削速度 

分 类 号：TG506.1[金属学及工艺—金属切削加工及机床] TG404