采用附圖那样的月牙式冲头,来冲制软質垫圈是很方便的,效率也很高。这种冲模的構造很簡單,在它里面主要有一个月牙形填塊,月牙形半徑是根据垫圈的內外徑来决定的。在它的前后用螺釘紧裝有兩个圓弧形刀片。开始冲制的时候,把工件材料擱在 The use of crescent-shaped punch as shown in the drawings, to stamping soft washer is very convenient, high efficiency. The die is simple to construct, with a predominantly crescent-shaped block in it, the crescent-shaped radius determined by the inside and outside diameter of the washer. Two circular arc blades are screwed on its front and back. At the beginning of stamping, the workpiece material on the rest