切削用量对42CrMo钢粗糙度轮廓支承长度率的影响试验  

Experiment Investigation of Surface Roughness during Turning Steel 42CrMo with Different Cutting Parameter

作　　者：梁军华[1,2] 李春寒 王春焱 

机构地区：[1]四川工程职业技术学院 [2]四川省高温合金切削工艺技术工程实验室

出　　处：《工具技术》2017年第10期133-135,共3页Tool Engineering

基　　金：四川工程职业技术学院2016年度科研项目(YJ2016KY-09)

摘　　要：通过42CrMo钢表面粗糙度车削试验得到刀尖圆弧半径r_ε与切削用量的改变对粗糙度轮廓支承长度率Rmr(c)与R_a的影响规律。试验结果表明:r_ε对表面粗糙度R_a的影响显著,r_ε对Rmr(c)的影响显著,切削用量的改变对Rmr(c)的影响不同,影响程度从小到大依次为切削速度v_c、背吃刀量a_p和进给量f。Effect of surface roughness is investigated when turning 42 CrMo steel, the influence regularity of surface roughness is obtained during different radius of tool when cutting parameter is changing. The result of the experiment indicates that in the range of experimental conditions, the radius of tool has significant effect on the R_a of surface roughness. The radius of tool has significant effect on the material ratio of the roughness profile. The influence of different cutting parameters on the Rmr（c） is different, influence degree is different, from small to large order of cutting speed,cutting depth and feed rate.

关 键 词：车削 42CrMo 切削用量 表面粗糙度 粗糙度轮廓的支承长度率 

分 类 号：TG506.7[金属学及工艺—金属切削加工及机床] TH161[机械工程—机械制造及自动化]