钛合金铣削加工切屑形成机理的仿真与实验  

Simulation and experiment of Titanium milling mechanism of chip formation

作　　者：于凤云[1] 王贺[1] 吴林[1] 涂元[1] 

机构地区：[1]黑龙江科技大学机械工程学院,哈尔滨150022

出　　处：《黑龙江科技学院学报》2013年第3期227-230,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：国家自然科学基金项目(51075128);黑龙江省教育厅科学技术研究项目(11551433)

摘　　要：锯齿状切屑加剧刀具的磨损,降低零件表面质量。为研究锯齿状切屑的形成机理,通过ABAQUS仿真软件,建立钛合金TC4正交切削二维模型,由此仿真模型得到锯齿状切屑,与实验得到的锯齿状切屑形貌进行对比,验证了仿真切削模拟的可行性。通过仿真得到单个锯齿状切屑形成的过程,分析了锯齿状切屑的形成机理,研究了进给速度对锯齿状切屑形成过程的影响。该研究为钛合金的铣削加工提供了理论依据。Increased tool wear due to serrated chip results in a reduced surface quality of metal parts, aimed at investigating the formation mechanism of serrated chip, this paper describes the develop- ment of a two-dimensional model of titanium altoy TC4 orthogonal cutting by using the ABAQUS simula- tion software and the comparison between serrated chip morphology derived from the simulation model and serrated chip from the experiment, with a consequent verification of the feasibility of the simulation cut- ting by simulation. The simulation contributes to single serrated chip formation process, a resulting analy- sis of the formation mechanism of the serrated chip, and an investigation into the effects of the formation process of cutting speed on serrated chip. This study provides a theoretical basis for titanium milling.

关 键 词：TC4 锯齿状切屑 有限元分析 

分 类 号：TG506.7[金属学及工艺—金属切削加工及机床]