Basic structure and operation principle of the parallel grinder for helical drill point grinding is presented. 给出螺旋面钻尖刃磨机床的基本结构及其工作原理。
The helicoid equation of contacting surface befween workpiece and die in the process of cross wedge roiling was proposed in this paper. 建立了楔横轧变形工件与模具接触面的旋转螺旋面方程。
