我厂生产的汽车轮壳杯形螺母采用冷挤工艺,其中下料工序不仅要求生产率高而且对毛坯的尺寸和形状精度要求也都比较严,为此,我们设计了弹射式全封闭套筒剪切模,自使用以来效果良好。实践证明,此剪切模对于冷挤压等精密压力加工工艺的棒料毛坯制备是一种较理想的模具。 I plant the production of cup nuts cup wheel using cold extrusion process, which requires not only the high productivity of the blanking process and the rough size and shape accuracy requirements are more stringent, therefore, we designed the ejection of fully enclosed sleeve cut Die, since the use of good results. Practice has proved that this shear die for cold extrusion and other precision machining pressure bar stock preparation is a more ideal die.