本文介绍一种板弹簧优化设计的新方法。它可以减轻板弹簧的自身重量，节省材料。
This paper introduces a new method of optimum design for leaf spring. It may decrease the weight of leaf spring, and save much material.
主要介绍一种板件连接新技术—板件冲压连接工艺，较详细地叙述了其原理、应用范围及工艺要点。
Mainly introduce a new technology for joining sheet metal works joining, introduce the principle, the application range and the outline of technology.
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