基于ABAQUS的2219铝合金钻削加工三维有限元模拟研究

3D finite element simulation for the drilling of 2219 aluminum alloy based on ABAQUS

针对我国新一代运载火箭壁板零件的常用材料2219铝合金钻孔加工过程中存在的刀具磨损快、加工参数有待进一步优化等问题,建立了基于ABAQUS的2219铝合金钻削加工三维有限元模型,并通过钻削实验对模型的有效性进行了验证,分析了钻削参数对钻削力和钻削温度的影响。研究结果表明:随着主轴转速的增大,钻削力减小,钻削温度降低;随着进给速度和钻头顶角的增大,钻削力增大,钻削温度升高,且钻头顶角的影响更为显著。

In view of the rapid tool wear and the need to further optimize machining parameters in the drilling process of 2219 aluminum alloy, a common material for the wall panel parts of the new generation launch vehicle in China,a 3D finite element model for the drilling of 2219 aluminum alloy is established based on ABAQUS. The validity of the model is verified by drilling experiments,and the effect of cutting parameters on drilling force and temperature is analyzed. The research results show that with the increase of the spindle speed,the drilling force decreases,and the drilling temperature decreases and that as the feed speed and the point angle of the drill bit increase,the drilling force increases,the drilling temperature rises,and the effect of point angle of the drill bit is significant.