基于ABAQUS/Explicit的SiCp/Al复合材料三维微孔钻削有限元仿真

2018-06-20

作者：孙素杰1，2，董志国1，2，轧刚1，2，刘建成3 单位：1太原理工大学；2精密加工山西省重点实验室；3美国太平洋大学

摘要：应用ABAQUS中Explicit显式求解器，基于微观尺度下的JohnsonCook本构方程，对高体积分数SiCp/Al复合材料微孔钻削过程进行了三维有限元仿真。研究了钻孔过程中钻削轴向力和扭矩的变化特性以及不同主轴转速和进给速度下钻削轴向力和扭矩的变化规律。此外，对不同主轴转速下钻屑形态的变化特性进行了分析。研究结果为颗粒增强金属基复合材料的微孔钻削工艺参数制定提供了参考。

关键词：SiCp/Al复合材料；有限元仿真；轴向力；扭矩；钻屑；钻削力

中图分类号：TG506.7；TH164文献标志码：A

Finite Element Simulation of 3D Micro Drilling of SiCp/Al Composites

Based on ABAQUS/Explicit

Sun Sujie，Dong Zhiguo，Ya Gang，Liu Jiancheng

Abstract:By using Explicitsolver of ABAQUS，based on the JohnsonCook constitutive model equation at microscopic scale，the finite element simulation of the micro drilling process of high volume fraction SiCp/Al composites is carried out.The variation characteristics of the axial force and torque，as well as the variation of the axial force and torque during different spindle speeds and feed speeds are studied.In addition，the change characteristics of chip shape at different spindle speeds are analyzed.The research results provide a reference for the development of microhole drilling parameters of particlereinforced metal matrix composites.

Keywords:SiCp/Al compound material；finite element simulation；axial force；torque；drilling cuttings