【摘要】 基于单因素试验法,在有限元分析软件DEFORM-3D中模拟了硬质合金刀具铣削7075-T6高强度铝合金的加工过程,获得了不同的铣削用量对已加工表面残余应力的影响规律。结果表明,随着主轴转速、每齿进给量和切削深度的增加,工件表面的残余应力有不同程度地增大;而切削宽度的变化对表面残余应力影响不太显著。研究结果为分析7075铝合金零件后续的加工变形和表面质量奠定了扎实的基础。更多还原

【Abstract】 Based on one- factor experiment method,the milling process of high strength 7075- T6 aluminum alloy machined by carbide cutting tool is simulated through the DEFORM- 3D FEM software,and the influence rule of milling parameters on processed surface residual stress is obtained. It shows that the surface residual stress increases at different degrees with the increase of the spindle speed,feed per tooth,and cutting depth; and the change of cutting width has little prominent effects on surface residual stress. The results have laid solid foundation for analyzing subsequent machining deformation and surface quality of 7075 aluminum alloy parts.更多还原