摘要
为解决在切削加工中经常出现的刀具磨损问题,在Coulomb摩擦定律的混合摩擦机理的基础上构建了刀具磨损模型;利用有限元仿真软件Deform的工艺模拟系统来分析车削加工过程;采用单因素变量法研究在切削加工中不同的车削参数对切削力、热以及刀具磨损的影响.研究结果表明,刀具磨损模型能够准确的预测刀具的磨损情况,刀具磨损程度随着切削速度、背吃刀量和进给量的增加而增加,研究结论揭示了在切削加工中刀具的磨损规律,对刀具磨损和切削参数控制具有重要意义.
In order to study tool wear phenomenon which often occurs during cutting, this paper proposed a tool wear model based on mixed friction mechanism of Coulomb’s friction law. The cutting process was analyzed by using a finite element simulation software(Deform). The effects of turning parameters on cutting force, heat and tool wear during machining were studied using factor variable method. The results show that the model can accurately predict tool wear. Tool wear increases with the increasing of cutting speed, cutting depth and feed rate.This study reveals the wear law of cutting tool during cutting process, which is of great significance for tool wear and cutting parameter control.
作者
马书娟
赵明月
郑耀辉
王明海
MA Shujuan;ZHAO Mingyue;ZHENG Yaohui;WANG Minghai(Shenyang Aerospace University Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process,Shenyang 110136,China)
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2018年第5期829-833,共5页
Journal of Liaoning Technical University (Natural Science)
基金
国家自然科学基金(51875367)
辽宁省教育厅项目(L201632)
关键词
钛合金
车削加工
刀具磨损
混合摩擦机理
切削仿真
titanium alloy
turning
tool wear
mixed friction mechanism
cutting simulation
