端铣7055铝合金铣削力及铣削温升研究  

Study on the Milling Force and Milling Temperature for End Milling of Aluminum Alloy 7055

作　　者：张朝阳[1] 陈国定[1] 王涛[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《机械设计与制造》2014年第6期75-78,83,共5页Machinery Design & Manufacture

摘　　要：通过试验构建了适合描述7055铝合金铣削加工过程的流动应力本构模型。采用有限元软件Deform-3D建立了接近实际的三维螺旋刃立铣刀单齿铣削加工数值仿真模型,通过仿真计算,获得了铣削7055铝合金过程中的铣削力和铣削温度,分析了铣削速度、进给量、铣削深度等工艺参数对铣削力和铣削温度的影响规律。结果表明,铣削力和刀尖处工件温度都随着铣削速度、进给量、铣削深度的增大而增大,但增大的程度及影响机理不尽相同。最后通过铣削力和铣削温度测量试验对有限元计算结果进行了验证。The experiment was conducted to establish a suitable flow stress constitutive model for describing the milling process of aluminum alloy 7055-4 three-dimensional numerical simulation model of milling with a single teeth of the helical tool was established by the FEM software Deform-3D.The milling force and temperature in the process of milling aluminum alloy 7055 were obtained from the simulation calculation. Based on the previous work, the law that the milling technical parameters ,which contains cutting speed.feed speed and cutting depth, affect the milling force and milling temperature was analyzed. The results show that the milling force and the temperature of the workpiece in front of the tool nose both increase along with the increasing of the milling technical parameters, but the increased degree and mechanism are not totally the same. Finally, the FEM results were verified by the milling force test and milling temperature test for aluminum alloy 7055.

关 键 词：7055铝合金 铣削力 铣削温度 数值仿真 

分 类 号：TH16[机械工程—机械制造及自动化] TG54[金属学及工艺—金属切削加工及机床]