通过对U形件侧面冲孔工艺的分析，介绍了U形件冲孔、压字复合模结构。
On the basis of technology analysis for the U shape pierced side holes, this paper introduced the struture of compound dies for U shape stamped and pressed-word.
针对锁紧片零件，设计了折弯压凸复合模，并介绍了模具结构和工作过程。提高了产品质量以及生产效率。
The bending and pressing convex forming compound die for locking spring is designed, the die structure and pressing process are introduced, the product quality and production efficiency are improved.
针对锁紧片零件，设计了折弯压凸复合模，并介绍了模具结构和工作过程。
The bending and pressing convex forming compound die for locking spring is designed, the die structure and pressing process are introduced, the product quality and production efficiency are improved.
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