高速铣削3Cr2Mo钢时硬度对表面粗糙度的影响规律  

Effect of Hardness on Surface Roughness During High-Speed Milling of 3Cr2Mo Steel

作　　者：庞俊忠 牛苜森 Pang Junzhong;Niu Musen(School of Mechanical Engineering,North University of China,Taiyuan 030051,China;不详)

机构地区：[1]中北大学机械工程学院,太原市030051

出　　处：《工具技术》2021年第8期57-60,共4页Tool Engineering

基　　金：国家自然科学基金(51175482);山西省重点实验室开放资金资助项目(XJZZ201601-06);山西省面上青年基金项目(201801D221230)、(201901D211203)。

摘　　要：在相同的铣削参数下,对硬度为31HRC和41HRC的3Cr2Mo淬硬钢进行高速铣削试验,结果表明:工件硬度不同,铣削参数对表面粗糙度的影响截然相反。高硬度下,进给量的影响占主导地位;低硬度下,切削速度对表面粗糙度的影响占主导地位。根据高速切削机理,分析了铣削参数在不同工件硬度下对表面粗糙度的影响规律。Under the same milling parameters,a high-speed milling test is carried out on 3Cr2Mo hardened steel with hardness of 31HRC and 41HRC.The results show that:with different hardness,the effect of milling parameters on surface roughness is quite different.At high hardness,the effect of feed rate dominates;at low hardness,the effect of cutting speed dominates.According to the mechanism of high-speed cutting,the effect of milling parameters on the surface roughness under different workpiece hardness is analyzed.

关 键 词：高速铣削 表面粗糙度 工件硬度 铣削温度 

分 类 号：TG506.1[金属学及工艺—金属切削加工及机床] TH161.1[机械工程—机械制造及自动化]