低温冷却铣削钛合金温度场仿真研究  

Simulation of Temperature Field by Low Temperature Cooling Milling

作　　者：张梦蓄 王凤彪[1] 秦承虎 秦一鸣 赵芝宇 ZHANG Meng-xu;WANG Feng-biao;QIN Cheng-hu;QIN Yi-ming;ZHAO Zhi-yu(School of Mechanical Engineering,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学机械工程学院,辽宁沈阳110159

出　　处：《机械工程与自动化》2024年第6期102-104,109,共4页Mechanical Engineering & Automation

摘　　要：钛合金作为广泛应用于航空航天的难加工金属,在加工过程中会产生高的切削温度和切削应力,严重影响工件表面质量及刀具的磨损。通过对钛合金铣削过程进行有限元仿真,与常温干切削进行对比,研究低温对钛合金切削过程的影响。研究结果表明:低温温度场能够有效抑制钛合金材料的切削温度,并同时影响断屑;初始温度场对钛合金切削温度影响显著,可以降低加工区域温度,从而延长刀具寿命,提高工件加工精度。Titanium alloy,as a difficult metal widely used in aerospace,will produce high cutting temperature and cutting stress in the processing process,which seriously affects the surface quality of workpiece and the wear of cutting tools.The FEM simulation of the titanium alloy milling process is compared with the normal temperature dry cutting.The results show that the low temperature field can effectively suppress the cutting temperature of titanium alloy material and the initial temperature field affects the cutting temperature of titanium alloy and reducing the temperature of machining area,thus extending the tool life and improving the machining accuracy of workpiece.

关 键 词：钛合金 切削温度 切削应力 有限元仿真 低温冷却 断屑 

分 类 号：TG506[金属学及工艺—金属切削加工及机床] TP391.9[自动化与计算机技术—计算机应用技术]