7050-T7451铝合金高速铣削力和温度仿真研究

Simulation Study on Milling Force and Temperature in High-speed Milling of 7050-T7451 Aluminum Alloy

高速铣削是航空材料加工制造中的关键技术之一。以7050-T7451铝合金为试验对象,通过正交试验方法,运用极差分析方法研究了铣削参数对铣削力及铣削温度的影响规律。研究表明:在所选参数范围内,x方向铣削力大于y方向铣削力;铣削深度对铣削力的影响最为显著;铣削力随着每齿进给量和铣削深度的增大而增大,随着铣削速度的增大而减小;每齿进给量对铣削温度的影响最为显著,铣削温度随着铣削参数的增大都呈增大趋势。

The high-speed milling is one of key technologies in aeronautical manufacturing. Based on 7050-T7451 aluminum alloy,the influences of milling parameters on milling force and milling temperature were investigated using the orthogonal test method.The results show that the x-direction milling force is greater than the y-direction milling force in the selected parameter range. Variation of milling depth has the most significant effect on milling force. Milling force increases as the feed per tooth and milling depth increases,while decreases with increasing of milling speed. Variation of feed per tooth has the most significant effect on milling temperature,the milling temperature increases with the increase of the milling parameters.