基于DEFORM-3D的7075铝合金铣削仿真与实验研究

Simulation and Experimental Analysis of Aluminum Alloy Milling Based on DEFORM-3D

铣削力和机器扭转力是引起零件变形的主要因素,特别是一些薄壁件,因此分析铣削过程受力对加工变形和保证零件质量有重要的意义。用DEFORM-3D建立Johnson-Cook模型,使用有限元法对铝合金Al7075-T351选取最佳切削深度,在此基础上寻找刀具提供线速度范围内的最佳数值,得到最佳受力曲线,利用仿真数据曲线与试验数据曲线对比验证仿真可靠性,为Al7075-T351铣削过程的研究提供铣削参数的参考依据。

Milling force and machine torsion force are the main factors that cause the deformation of parts,especially some thin wall parts.In this paper,using DEFORM- 3D Johnson-Cook,a model is established,using the finite element method (fem) for Al7075-T351 aluminum alloy selection of best cutting depth,on the basis of looking for the best numerical tool linear velocity scope,study its best result stress curve,using the simulation data curve contrast curve with the experimental data to validate the simulation reliability,Al7075-T351 milling process research provide reference for the milling parameters.