钛合金TC4三维高速铣削的铣削力和温度特性  

Simulation and experimental research on three dimensional high speed milling process of titanium alloy TC4

作　　者：王学惠[1] Wang Xuehui(School of Mechanical Engineering, Heilongjiang University of Science ＆ Technology, Harbin 150022, China)

机构地区：[1]黑龙江科技大学机械工程学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2017年第2期168-171,共4页Journal of Heilongjiang University of Science And Technology

基　　金：黑龙江省自然科学基金项目(E201328);黑龙江省教育厅科学技术研究项目(12541691)

摘　　要：为探究高速铣削中铣削力和铣削温度的分布规律,采用有限元仿真和铣削实验相结合的方法,对整体硬质合金立铣刀高速铣削钛合金TC4进行相关研究。采用有限元分析软件Advantedge Fem,基于J-C本构模型,建立高速铣削钛合金TC4的三维铣削模型,模拟铣削加工过程,获得铣削力和铣削温度的分布情况。通过铣削实验获得了相同铣削条件下的铣削力数据。结果表明:高速铣削钛合金TC4铣削力的模拟值与实验值具有较好的一致性;切屑的温度高于工件和刀具的温度,高速铣削过程中,切屑带走了大部分热量,与高速铣削过程中切屑带走大部分热量的情况相吻合。该研究可以为钛合金合理选择加工参数提供依据。This paper arises from the need for exploring the distribution rules behind the milling force and milling temperature in high speed milling. The research consists of examining the high-speed milling of titanium alloy TC4 with the integral cemented carbide end mill using the combination of the finite element simulation and milling experiment; establishing the three-dimensional milling model of titanium alloy TC4 in high speed milling; identifying the distribution law governing cutting force and cutting temperature, using the finite element analysis soft.are Advantedge Fern and drawing on the J-C constitutive model on which to simulating the milling process; and providing the milling force data with the same milling condition using the milling experiments. The results show that a better agreement occurs between the milling force values and the experimental value of the simulation in high speed milling of titanium alloy TC4 ; the cutting temperature is higher than the temperature of the workpiece and tool and the high speed milling is a process in which the chip takes away most of the heat, which is consistent with the fact that the chip carries away most of the heat in high speed milling process. This study may provide a basis fi）r the reasonable selection of milling parameters on titanium alloy.

关 键 词：高速铣削 铣削力 铣削温度 有限元分析 三维铣削模型 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]