摘要
轻质铝合金材料在加工中易产生弹塑性变形和黏刀现象,并且复杂异形构件的壁厚小、曲面多以及切削深度较大,使轻质铝合金复杂异形构件加工难度大。利用数值模拟对金属材料去除过程进行仿真模拟,探究切削参数对切削力和扭矩等的影响,并进行了试验验证。试验和仿真数据表明:仿真预测值与实测值间的误差在可接受范围内;在一定范围内,铣削温度随切削深度的变化较小,切削深度、切削速度对切削力、扭矩的变化影响较大,选择合适的切削深度和切削速度对金属切削的加工质量有显著影响,得到最优铣削参数组合为切削深度a_(p)=0.4mm,切削速度v_(c)=5.5mm/s。
Lightweight aluminum alloy materials are very prone to elastic-plastic deformation during processing,and the phenomenon of tool sticking is serious,and the complex special-shaped components have small wall thickness,many curved surfaces,and deep cutting,which make the processing of light aluminum alloy complex special-shaped components difficult to machine.The removal of metal materials is simulated by the numerical simulation on high-speed computers,the influence of cutting parameters on the cutting force,torque is studied,the milling test is carried out.The comparison of test data and simulation data is an important combination of theory and practice in engineering.The final test results and simulation data show that the error between the simulation prediction value and the actual value is within an acceptable range.Within a certain range,the milling temperature changes little with the depth of cut.The cutting depth and cutting speed have a great influence on the changes of cutting force and torque.Choosing the appropriate cutting depth and cutting speed has a significant impact on the processing quality of metal cutting.The relative optimal milling parameters are cutting depth a_(p)=0.4mm,cutting speed v_(c)=5.5mm/s.
作者
赵海越
曹岩
黄亮
王元飞
谷希伟
Zhao Haiyue;Cao Yan;Huang Liang;Wang Yuanfei;Gu Xiwei(School of Mechatronic Engineering,Xi'an Technological University,Xi'an 710021,China;School of Computer Science and Engineering,Xi'an Technological University,Xi'an 710021,China;不详)
出处
《工具技术》
北大核心
2023年第3期19-25,共7页
Tool Engineering
关键词
轻质铝合金
复杂异形构件
数值模拟仿真
铣削试验
lightweight aluminum alloy
complex special-shaped component
numerical simulation
milling test
