本文提出了一种新的成型磨齿法，磨出了６级精度的齿轮，磨齿工时大为缩短。根据圆弧蜕变线的形成原理，利用圆弧修整器修出变曲率的砂轮曲线，采用最优化方法，借助电子计算机寻查到最佳参数，精确地逼近渐开线，为磨齿加工展示了新途径。 This paper presents a new forming grinding method, grinding out the 6-level precision gear grinding time is greatly reduced. According to the forming principle of arc transformation line, the curve of grinding wheel with variable curvature was repaired by arc dresser. The optimum parameters were found by the computerized optimization method, and the involute curve was accurately approximated. New way.