【摘要】 为实现PCBN刀具对50HRC淬硬钢的干式精加工,获得较高的表面质量,对PCBN刀具几何参数及切削参数进行优化。首先分析了PCBN刀具几何参数及切削参数对切削过程中的切削力和切削温度的影响,后以PCBN刀具前角、刀尖圆弧半径、进给速度、进给量、切削深度作为优化变量,设计正交试验方案。利用数值模拟软件AdvantEdge建立切削模型,对切削过程中的切削力和切削温度进行数值模拟,并对其结果分别进行极差和方差分析,得到最优的PCBN刀具几何参数及切削参数,对提高实际加工质量和加工效率具有重要的意义。更多还原

【Abstract】 In order to realize the dry finishing of 50 HRC hardened steel by PCBN tool, and obtain high surface quality, the PCBN tool geometry parameters and cutting parameters were optimized. Firstly, the influence of PCBN tool geometry parameters and cutting parameters on cutting force and cutting temperature during cutting process was analyzed. Then, the PCBN tool rake angle, tool nose radius, feed rate, feed rate and cutting depth were used as optimization variables to design the orthogonal test plan. The cutting model was established in the numerical simulation software AdvantEdge. The cutting force and cutting temperature in the cutting process were numerically simulated, and the results were analyzed by the range and variance respectively to obtain the optimal PCBN tool geometry parameters and cutting parameters. Processing quality and processing efficiency are of great significance.更多还原