铣削激光增材制造TC4钛合金铣削力的研究  

Research on milling force in selective laser melting of titanium alloy milling

作　　者：王伟 金成哲[1] 王俊杰 刘玮 WANG Wei;JIN Chengzhe;WANG Junjie;LIU Wei(School of Mechanical Engineering,Shenyang University of Science and Technology,Shenyang 110159,CHN;School of Equipment Engineering,Shenyang University of Science and Technology,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8期49-54,共6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项目(SYLUGFTD202102)。

摘　　要：为满足工件的表面质量的要求,对激光增材制造的TC4钛合金进行铣削加工,从而可以实现更高精度的加工要求。为研究铣削用量对铣削激光增材制造钛合金的铣削力的影响,建立了铣削激光增材制造(selective laser melting, SLM) TC4钛合金的仿真模型;另外,采用与仿真模型相同的铣削用量进行了铣削试验,对仿真和试验结果进行了极差分析。分析结果表明,轴向切深a_(p)对铣削力影响程度最大、其次为铣削速度v_(c)和每齿进给量f_(z)。最优铣削参数为铣削速度v_(c)=55 m/min,每齿进给量f_(z)=0.04 mm/z,轴向切深a_(p)=0.3 mm。铣削仿真和试验的误差对比分析结果表明,所建立的铣削仿真模型是合理可行的,因此,基于此铣削仿真模型,采用单因素试验法进行了仿真和铣削试验,研究结果表明,随着铣削速度、轴向切深和每齿进给量的增大,铣削力增大,但当铣削速度超过75 m/min时铣削力反而减小。In order to meet the requirements of surface quality of workpieces,it is necessary to perform milling on TC4 titanium alloy manufactured by selective laser melting,in order to achieve higher precision machining requirements.A simulation model for milling SLM(selective laser melting)TC4 titanium alloy was established to study the effect of cutting parameters on the milling force of milling selective laser melting of titanium alloy.In addition,milling experiments were conducted using the same cutting parameters as the simulation model,and a range analysis was conducted on the simulation and experimental results.The research results indicate that the axial cutting depth a_(p) has the greatest impact on milling force,followed by cutting speed v_(c),and the feed rate per tooth f_(z).The optimal milling parameters are:milling speed v_(c)=55 m/min,feed rate per tooth f_(z)=0.04 mm/z,and axial cutting depth a_(p)=0.3 mm.The comparative analysis of errors between milling simulation and experiments shows that the established milling simulation model is reasonable and feasible,so based on this milling simulation model,single factor experimental method was used for simulation and milling experiments.The research results showed that as the cutting speed,axial cutting depth,and feed rate per tooth increased,the milling force increased.However,when the milling speed exceeded 75 m/min,the milling force actually decreased.

关 键 词：铣削 激光增材制造TC4钛合金 铣削力 铣削用量 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]