摘要
为了研究不同铣削参数对7075铝合金铣削过程中铣削力和铣削温度的影响,进行铣削参数优化。采用仿真与试验验证结合的方法,利用有限元建立2D铣削仿真模型,研究铣削过程中铣削力和铣削温度的变化,并在相同的切削条件下进行铣削试验测量铣削力,通过正交试验和单因素试验进行铣削参数优化。结果表明,有限元仿真结果与试验结果数据相近,验证了有限元模型的准确性,通过正交试验选出最优的铣削工艺参数为主轴转速6000r/min、每齿进给量0.05mm/z、铣削宽度2mm、铣削深度0.5mm;铣削7075铝合金时,在不影响生产的条件下,应采用较高的主轴转速,较低的进给量、铣削深度和铣削宽度,铣削温度随每齿进给量、主轴转速和铣削宽度升高而变大,铣削深度对铣削温度的影响极小。
In order to study the influence of different milling parameters on the milling force and milling temperature during the milling of 7075 aluminum alloy. Using simulation and experimental verification method,using finite element to establish2 D milling simulation model,study milling process milling force and milling temperature changes,and in the same cutting conditions milling test,measuring milling force,milling optimization with orthogonal and single factor experiments. The results show,finite element simulation results and experimental data are similar to verify the accuracy of the finite element model;through orthogonal test,the optimum milling process parameters were chosen as spindle speed 6000 r/min,feed rate0.05 mm/z per tooth,milling width 2 mm and milling depth 0.5 mm. In the milling of 7075 aluminum alloy,should adopt higher spindle speed,lower feed rate,milling depth and milling width,milling temperature increases with the amount of feed per tooth,spindle speed and milling width,and the effect of milling depth on milling temperature is minimal.
作者
郑耀辉
王朋
刘娜
王明海
ZHENG Yao-hui;WANG Peng;LIU Na;WANG Ming-hai(Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aer-ospace University,Liaoning Shenyang 110136,China;Aero Engine Corporation of China Shenyang Liming Aero Engine Co.,Ltd.,Liaoning Shenyang 110000,China)
出处
《机械设计与制造》
北大核心
2020年第5期171-174,共4页
Machinery Design & Manufacture
基金
航空科学基金项目(2015ZE54025)
沈阳市科技局计划项目(Z17-5-035)
辽宁省教育厅系列项目(L201747)。
关键词
7075铝合金
铣削力
铣削温度
参数优化
切削仿真
7075 Aluminum Alloy
Milling Force
Milling Temperature
Parameter Optimization
Cutting Simulation
