沟槽微织构硬质合金刀具的摩擦仿真分析  

Attrition Simulation Analysis of Carbide Tool with Groove Microtexture

作　　者：解长鹏 刘国东 刘祁文 李子航 Xie Changpeng;Liu Guodong;Liu Qiwen;Li Zihang(College of Mechanical Engineering,North University of China,Taiyuna 030051,China;不详)

机构地区：[1]中北大学机械工程学院,先进制造技术山西省重点实验室,太原市030051

出　　处：《工具技术》2022年第2期43-47,共5页Tool Engineering

基　　金：山西省自然科学基金(201801D121182)。

摘　　要：在硬质合金刀具表面加工微织构已成为减摩抗磨最有效的技术之一。为了分析表面微织构的几何参数对硬质合金刀具表面的减摩机理,利用ABAQUS有限元软件对微织构刀具表面的摩擦磨损过程进行模拟仿真,研究不同宽度、深度和间距的微织构参数对刀具摩擦过程中应力分布的影响。仿真模拟表明,硬质合金刀具表面的微织构可通过改变应力分布来改善应力集中现象,并使应力均匀分布;微织构会增大刀具表面的最大等效应力,且随微织构宽度和深度的增加而增大,随微织构间距的增加而减少。Machining microtexture on the surface of cemented carbide tool has become the most effective technology for reducing friction and wear.In order to analyze the antifriction mechanism of the surface microtexture geometrical parameters on the surface of cemented carbide tool,the friction and wear process of the textured tool surface is simulated by the ABAQUS finite element software,and the influence of different width,depth and spacing parameters of the microtexture on the stress distribution during the friction process of the tool are studied.The simulation indicates,the surface microstructure of cemented carbide tool could ameliorate the stress concentration of the tool through transforming the stress distribution and the stress is evenly distributed.Microtexture can increase the maximum equivalent stress on the surface of the tool and increases with the increase of texture width and depth,and decreases with the increase of texture spacing.

关 键 词：微织构 几何参数 摩擦 应力 

分 类 号：TG703[金属学及工艺—刀具与模具] TG115.58