基于多目标优化的硬质合金刀具前刀面粘结破损试验研究  

Research on Bond Breakage of Rake Face of Carbide Tools Based on Multi-Objective Optimization

作　　者：李健男 郑敏利[1] 陈金国[1,2] 张为[1] 陈保良[1] 张跃 Li Jiannan;Zheng Minli;Chen Jinguo;Zhang Wei;Chen Baoliang;Zhang Yue(School of Mechanical Power Engineering,Harbin University of Science and Technology,Harbin 150080,China;State Key Laboratory of High Efficiency Cutting and Cutting Tools,Harbin University of Science and Technology,Harbin 150080,China)

机构地区：[1]哈尔滨理工大学高效切削及刀具国家地方联合工程重点试验室 [2]莆田学院福建省激光精密加工工程技术研究中心

出　　处：《工具技术》2019年第1期15-19,共5页Tool Engineering

基　　金：国家自然科学基金(51575146);CAD/CAM福建省高校工程研究中心2017年度开放基金项目(K201709);福建省中青年教师教育科研项目(JAT170506)

摘　　要：为了提高硬质合金刀具在切削加工2. 25Cr1Mo0. 25V材料时的使用寿命,有效减少切削过程中刀具的粘结破损,提出了以粘结破损深度、面积最小为优化目标,以切削速度、进给量、切削深度为优化变量的多目标优化设计方法。设计单因素试验,对不同切削参数下的刀具粘结破损形貌进行分析。在单因素的试验基础上建立三因素四水平正交试验,运用熵值法将多个试验结果进行综合处理。建立刀具粘结破损量的二阶响应面模型,得到切削参数与刀具粘结破损之间的变化规律,并通过对切削参数的范围划分,明确硬质合金刀具的切削参数优选区域。In order to improve the cemented carbide tool life when cutting 2.25CrlMoO.25V material,and effectively reduce the bond breakage of the tool during the cutting process,a multi-objective optimization design method with the sticking failure depth and the minimum area as the optimization target and the cutting speed,feed rate and cutting depth amount as the optimization variables is proposed.Based on the single factor experiment,a three-factor four-level orthogonal experiment is established,and multiple experimental results are processed comprehensively by entropy method.The second-order response surface model of tool sticking failure is established,and the variation law between cutting parameters and tool sticking failure is obtained.By dividing the range of cutting parameters,the optimum region of the cutting parameters for the cemented carbide tool is defined.

关 键 词：硬质合金刀具 2.25Cr1Mo0.25V 多目标优化 粘结破损 

分 类 号：TG711[金属学及工艺—刀具与模具] TH161[机械工程—机械制造及自动化]