高速干铣削高强钢铣削力及表面粗糙度研究  

Milling Forcesand Surface Roughnessin High-speed Dry Milling of High-strength Steel

作　　者：于英钊 高军[1] 郑光明[1] 楚满福 李源 张旭 YU Ying-zhao;GAO Jun;ZHENG Guang-ming;CHU Man-fu;LI Yuan;ZHANG Xu(School of Mechanical Engineering,Shandong University of Technology,Zibo Shandong 255000,China)

机构地区：[1]山东理工大学机械工程学院,山东淄博255000

出　　处：《组合机床与自动化加工技术》2018年第12期21-24,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(51505264);淄博市校城融合发展计划(2017ZBXC032;2018ZBXC003)

摘　　要：选用PVD—TiAlN-TiN硬质合金涂层刀具,进行高速干铣削AISI4340高强钢正交试验,研究铣削力及加工表面粗糙度随切削参数的变化,并建立铣削力及加工表面粗糙度与切削参数之间的经验模型。分析结果表明:每齿进给量和铣削速度对主切削力Fz影响较大,径向切削深度对加工表面粗糙度Ra影响较小。建立的铣削力及加工表面粗糙度经验模型,经过检验,相对误差较小。涂层刀具高速铣削AISI4340钢时,采用较小的轴向切削深度和每齿进给量以及较大的铣削速度和径向切削深度有利于得到较小的铣削力和加工表面粗糙度。PVD-TiAlN-TiNcemented carbide coated tool was used to make the orthogonal test of high-speed dry milling of AISI4340high-strength steel.Change of different cutting parameters on the milling forces and machinedsurface roughness is studied,meanwhile,the empirical models of the milling forcesand machinedsurface roughness were established.The results show that the feed rate per tooth and milling speed have great influence on the main cutting force F z,the radial cutting depth has little effect on machinedsurface roughness Ra.Theestablished empirical model of milling forces and machined surface roughness,the relative error is small.Itis found thatthe smaller main milling forceand surface roughnesscan be obtained by using low value of axial depth andfeed rateper tooth,high milling speed andradial depth when using coated tool in high-speed milling of AISI4340steel.

关 键 词：高速铣削 涂层刀具 铣削力 加工表面粗糙度 

分 类 号：TH162[机械工程—机械制造及自动化] TG506.1[金属学及工艺—金属切削加工及机床]