切削速度对高硬合金高速切削工件温度和系统势能的影响  

Effect of Cutting Speed on Temperature and System Potential Energy of High-speed Alloy Cutting Workpiece

作　　者：关锋[1] GUAN Feng(Department of Mechanical Engineering,Shanxi Vocational College of Mechanical and Electrical Technology,Changzhi Shanxi 046011,China)

机构地区：[1]山西机电职业技术学院机械工程系,山西长治046011

出　　处：《装备制造技术》2020年第4期119-121,共3页Equipment Manufacturing Technology

基　　金：山西机电职业技术学院院级课题(JKY-18015)。

摘　　要：为了能够更加深入分析加工难度大的材料特性,利用分子动力学方法来分析高速切削深度对高硬合金切削参数影响。研究结果表明:在刀具的前部与下部形成了更多的工件晶格变形区,而经过加工后的表面形成了更少能够实现保持弹性恢复的工件原子。随着切削速率的提高,平均切削力也显著增大,当切削速率增大后,平均摩擦系数表现为先增大后降低,工件达到了更高的平均温度,系统达到了更大的势能。In order to further analyze the characteristics of materials with high machining difficulty,the effect of high speed cutting depth on the cutting parameters of high hard alloys was analyzed by using molecular dynamics method.The results show that more lattice deformation zones are formed in the front and the bottom of the tool,while fewer workpiece atoms are formed in the machined surface to achieve elastic recovery.With the increase of the cutting rate,the average cutting force also increases significantly.When the cutting rate increases,the average friction coefficient first increases and then decreases,the workpiece reaches a higher average temperature and the system reaches a greater potential energy.

关 键 词：高速切削速度 高硬合金 切削参数 仿真分析 

分 类 号：TH164[机械工程—机械制造及自动化]