铣削20CrMnTi钢已加工表面粗糙度的试验研究  

Experimental study on the roughness of milled 20CrMnTi steel machined surface

作　　者：周浩淳 金成哲[1] 张文瑞 刘玮 ZHOU Haochun;JIN Chengzhe;ZHANG Wenrui;LIU Wei(School of Mechanical Engineering,Shenyang Ligong University,Shenyang 110159,CHN;School of Equipment Engineering,Shenyang Ligong University,Shenyang 110159,CHN)

机构地区：[1]沈阳理工大学机械工程学院,辽宁沈阳110159 [2]沈阳理工大学装备工程学院,辽宁沈阳110159

出　　处：《制造技术与机床》2024年第1期80-84,共5页Manufacturing Technology & Machine Tool

基　　金：沈阳理工大学国防科技创新团队培育建设计划资助项目(SYLUGFTD202102)。

摘　　要：采用正交试验法研究CBN直柄平底立铣刀高速铣削20CrMnTi淬硬钢时切削参数对已加工表面粗糙度的影响。通过极差分析方法研究了切削参数对表面粗糙度的影响程度,通过单因素试验法得到了切削参数对表面粗糙度的影响规律,建立了基于指数函数的切削参数与表面粗糙度的关系模型。利用预测模型得出的表面粗糙度与试验的结果进行误差分析,说明所建立的模型能比较准确地对表面粗糙度进行预测。试验结果表明:各因素的影响程度从大到小依次为铣削深度、每齿进给量和切削速度,表面粗糙度随每齿进给量和铣削深度的增大而增大,随切削速度的增大而减小。The effect of cutting parameters on the machined surface roughness during high-speed milling of 20CrMnTi hardened steel with CBN straight-shank flat-bottomed end mills was studied by orthogonal test method.The effect of the cutting parameters on the surface roughness was tested by analyzing extreme differences,and the main influencing factors were clarified.The law of the influence of cutting parameters on the surface roughness was determined using the one-factor test method.A model of the relationship between cutting parameters and surface roughness based on an exponential function was created.Error analysis between the surface roughness obtained from the predictive model and the test results shows that the fixed model can more accurately predict the surface roughness.The test results showed that:the effect of each factor in descending order is the milling depth,feed per tooth,cutting speed;surface roughness increases with increasing feed per tooth and milling depth,and decreases with increasing cutting speed.

关 键 词：铣削 20CrMnTi淬硬钢 切削参数 表面粗糙度 

分 类 号：TG501[金属学及工艺—金属切削加工及机床]