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A Design of Manufacturing Processes for Valve-Spring Retainer Component

机译：阀门弹簧保持器部件的制造工艺设计

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摘要

New manufacturing processes for a valve-spring retainer (VSR)are proposed by replacing the initial solid billet for commercially available thick-walled pipes. The rigid-plastic FEM has been applied to simulate the conventional five -stage manufacturing process for VSR component, The existing process includes mainly backward extrusion and heading operations. A process design methodology is proposed and applied for the analysis. The process design criteria are the maximum force requirement within the available press limit, and the material saving by reducing the wastes from the process. As a result, several simulations of one-step process from selected stocks to the final product shape are performed for a possibly better process than the conventional on. Statistics among different processes are summarized and compared each other in terms of number of required operations for final product, forging load, material waste, number of individual die, process time, and even the possibility of fracture during service . Experiment also has been conducted to ensure that the proposed one -step process is safe operation without geometrical defects.
机译：通过更换用于市售的厚壁管的初始固体坯料，提出了阀门弹簧保持器（VSR）的新制造工艺。已经应用刚性塑料有限元件来模拟VSR成分的传统五件制造过程，现有过程主要包括向后挤出和标题操作。提出了一个过程设计方法和应用分析。过程设计标准是可用压力限制内的最大力要求，通过减少过程中的废物来节省材料。结果，对于可能比传统的常规工艺执行从所选库存到最终产品形状的几个模拟从所选储备到最终产品形状的仿真。在不同流程之间的统计数据总结，并在最终产品的所需操作数量，锻造负载，材料浪费，单个模具，过程时间，甚至在服务期间的可能性方面相比，互相比较。实验还已经进行，以确保提出的一个-Step工艺在没有几何缺陷的情况下是安全的操作。

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