刀具磨损过程中铣削力与主轴电流试验研究  

Experimental Study on Milling Force and Spindle Current During the Tool Wear Process

作　　者：梁军华[1,2] 高宏力 LIANG Jun-hua;GAO Hong-li(School of Mechanical Engineering,Southwest Jiaotong University,Sichuan Chengdu 610031,China;Sichuan Provincial Engineering Laboratory of Super Alloy Cutting Technology,Sichuan Deyang 618000,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031 [2]四川省高温合金切削工艺技术工程实验室,四川德阳618000

出　　处：《机械设计与制造》2023年第3期43-45,52,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目——考虑数控机床性能退化条件的立铣刀服役寿命在线预测关键技术研究(51775452);德阳市2017年度科技支撑计划——铣削镍基高温合金GH4169刀具磨损监测信号变化试验研究(2017ZZ035)。

摘　　要：进行了涂层硬质合金立铣刀在刀具磨损过程中铣削GH4169试验,获得了刀具磨损随时间变化曲线,铣削力与主轴电流随刀具磨损量的变化曲线。试验结果表明:刀具磨损量随磨损时间(累计加工时间)变化规律满足磨损曲线,铣削力随磨损量增大而增大,刀具磨钝时Fx绝对值均值比磨损初期增大235%,刀具磨钝时Fy绝对值均值比磨损初期增大129%,刀具磨钝时Fz绝对值均值比磨损初期增大607%;主轴电流随磨损量增大呈线性增大,刀具磨钝时主轴电流绝对值均值比磨损初期增大91%。Under different tool wear process,the experiment of millingGH4169 with coated carbide end mills was carried out,curves between processing time,milling force,spindle current and tool wear are obtained. Experiment results prove that the tool wear curve is satisfied by the rule that the wear amount of the blade changes with the wear time. And milling force increases with the increase of tool wear,when the tool is blunted,the Fxabsolute value increases by 235% compared with the initial wear stage,the Fyabsolute value increases by 129% compared with the initial wear stage,the Fz absolute value increases by 607% compared with the initial wear stage. The spindle current increases linearly with the increase of tool wear,the absolute value of spindle current increases by 91% compared with the initial wear stage when the tool is blunted.

关 键 词：铣削 GH4169 刀具磨损 铣削力 主轴电流 

分 类 号：TH16[机械工程—机械制造及自动化]