涂层微磨具的磨损机理仿真与试验研究  

Simulation and Experiment Research on Wear Mechanism of Coated Micro-Grinding Tool

作　　者：谭学飞[1] 温雪龙 于兴晨 慕雅婧 TAN Xue-fei;WEN Xue-long;YU Xing-chen;MU Ya-jing(School of Mechanical Engineering and Automation,Northeastern University,Liaoning Shenyang110819,China)

机构地区：[1]东北大学机械工程与自动化学院

出　　处：《机械设计与制造》2020年第2期1-5,9,共6页Machinery Design & Manufacture

基　　金：国家自然科学基金青年基金项目（51505073)

摘　　要：阐明了涂层微磨具磨削过程中的磨粒磨损机制,建立未涂层微磨具单磨粒磨损数学模型,得到了磨损体积随时间变化的函数关系。并采用仿真和试验结合的方法研究了涂层与未涂层微磨具在相同条件下,分别改变磨削深度,磨削线速度观察相应磨削温度,磨削力和磨损深度的变化。结果表明:随着磨削深度的增加,涂层与未涂层微磨具磨削温度,磨削力和磨损深度均显著增加;磨削线速度增大时,涂层和未涂层微磨具磨削力有减小的趋势而磨削温度和磨损深度增大,但与磨削深度的影响相比并不显著。上述研究为涂层微磨具的研究提供了理论和现实依据。Wear mechanism of abrasive particles in micro-grinding process are expounded.In addition,a mathematical model for abrasive wear is also established.An empirical formula for the variation of wear volume with time is obtained.The effects of grinding depth and linear velocity on grinding temperature,force and wear depth are investigated under the same condition by simulation and experiment.The results show that temperature,force and wear depth grow significantly with the increase of depth during grinding process.The conclusion is applicable to coated and uncoated micro abrasive tools.With the increase of linear velocity,both of the temperature and wear depth increase while grinding force decreases slowly.However,the growth rate is not significant compared with the influence of grinding depth.The above research provides a theoretical and practical basis for the study of micro abrasive tools.

关 键 词：涂层微磨具 磨损机理 磨削力 磨损深度 

分 类 号：TH16[机械工程—机械制造及自动化] TH161