摘要
在机械制造业中,孔加工是一大难点,深孔加工又是最困难的一种。为预测和深入研究深孔加工过程中钻削用量的变化对钻削力大小的影响,使用Pro/Engineer软件对BTA内排屑深孔钻建立3D实体模型,基于Deform 3D软件形成有限元模型,并对钻削过程中的钻削力进行仿真研究。动态模拟了BTA内排屑深孔钻钻削过程中切屑的成形过程,获得了加工过程中的连续切屑,并分析预测了加工过程中刀具所受的扭矩和轴向力。结果表明,扭矩和轴向力均随BTA内排屑深孔钻直径的增加而增大,随进给量的减小而降低。
Drilling has great significance to machine building industry,especially Deep-hole Drilling.A investigate on drilling simulation is taken for predicting the influence of drilling parameter on cutting forces.And the 3D model of BTA is developed using Pro/Engineer.After that,a finite model based on Deform 3D is used to simulate the cutting forces in drilling processes.The chip formation of the BTA-drilling process is simulated dynamically.Through the simulation,continuous cuttings for drilling are presented,analyzing and predicting the torque and thrust of tools in BTA-drilling process.The FEM simulation demonstrates that the torque and thrust increases with larger diameter of drill bit,and reduces with smaller feed.
出处
《机械设计与制造》
北大核心
2012年第11期19-21,共3页
Machinery Design & Manufacture
基金
中北大学2012年科学基金项目-准干式深孔膛削排屑机理及仿真研究
山西省自然科学基金(2012011046-12)
