基于热力耦合的金属切削过程分析及实验验证

taptap下载安装安卓学报

基于热力耦合的金属切削过程分析及实验验证

杨永刚，陈燕青

（taptap下载安装安卓航空工程学院，天津300300）

收稿日期:2017-09-14 修回日期:2017-11-17 出版日期:2018-04-25 发布日期:2018-05-02
作者简介:杨永刚（1978—），男，吉林四平人，副教授，博士，研究方向为机器人技术、飞行器制造技术.
基金资助:
中国航空工业集团公司资助项目（CXY2013MH35）

Analysis and experimental verification of metal cutting process based on thermo-mechanical coupling

YANG Yonggang, CHEN Yanqing

(College of Aeronautical Engineering, CAUC, Tianjin 300300, China)

Received:2017-09-14 Revised:2017-11-17 Online:2018-04-25 Published:2018-05-02

摘要/Abstract

摘要： 在传统切削仿真模型中，工件或刀具模型设置为刚体，不能有效反映切削过程中工件和刀具在热力耦合作用下的真实状态曰增大材料导热率不能准确反映切削液与材料表面的热交换过程。针对传统模型存在的不足，建立可反映材料加工特性的J-C 本构模型和动态失效模型，通过添加对流换热来模拟冷却介质的冷却作用，采用有限元软件ABAQUS进行仿真。分析了不同切削参数、刀具形状和冷却介质对AISI-1045 钢加工过程的影响，并通过与实验数据对比验证仿真结果的正确性。

关键词: 切削仿真, 切削力, 切削温度

Abstract: In traditional cutting simulation model, workpiece or tool model is set as rigid body, which can not effectively reflect the cutting process of workpiece and tool in thermodynamic coupling in real state; thermal conductivity increase of material can not accurately reflect the cutting fluid and material surface heat exchange process. J-C constitutive model and dynamic failure model are established to reflect the material processing characteristics. The cooling effect of cooling medium is simulated by adding convective heat transfer. Finite element software ABAQUS is used to simulate J-C constitutive model and dynamic failure model. The effects of different cutting parameters, tool shapes and cooling mediums during the machining process of AISI-1045 steel are analyzed, and the correctness of simulation results is verified by comparison with experimental data.

Key words: cutting simulation, cutting force, cutting temperature

中图分类号:

V250
TP391.9

杨永刚，陈燕青. 基于热力耦合的金属切削过程分析及实验验证[J]. taptap下载安装安卓学报.

YANG Yonggang, CHEN Yanqing. Analysis and experimental verification of metal cutting process based on thermo-mechanical coupling[J]. .