【摘要】 针对复杂槽型车刀片对残余应力分布的影响进行有限元仿真,得到前角及涂层对残余应力的影响规律;通过切削试验分析了切削参数和刀具参数对切削力和切削温度的影响作用,进而研究了槽型和涂层对残余应力的影响规律。研究结果表明:涂层刀具减少了已加工表面的残余拉应力;轴向和切向残余应力是拉应力,且切向残余应力大于轴向残余应力。更多还原

【Abstract】 For the influence of complex groove tools on residual stress distribution, the finite element simulation is carried out, the effects of rake angle and coating is analyzed. Then the influence of cutting and tool parameters on cutting force and temperature, whiles the influence of groove and coating on the residual stress are analyzed. The research results indicated that the coated tools reduced the residual tensile stress in the machined surface. The axial and tangential residual stress is tensile stress,and the tangential residual stress is larger than the axial in machining.更多还原