锻压技术

曲轴热锻工艺链优化方法及其应用

英文标题：Optimization and application of crankshaft hot forging process chain

作者：陈慧芳刘雅辉刘淑梅

单位：上海工程技术大学

关键词：热锻曲轴工艺链数值模拟优化

分类号：

出版年,卷(期):页码：2015,40(1):125-129

摘要：

根据曲轴的热锻生产，以坯料质量、锻造温度和摩擦系数为工艺优化参数，探究四缸曲轴热锻工艺链的优化方法，优化目标包括热锻能耗、生产成本和锻造时间。为了与初始方案进行对比，设计了3个优化方案。基于Deform-3D进行有限元模拟，分析了三个工艺参数对曲轴的热锻工艺的影响，结果表明：优化坯料质量和摩擦系数能够降低锻件温度和成形载荷，减少模具磨损，降低锻造温度收到相反效果。最后，基于事件驱动的模拟，分析了9个参数对热锻能耗、生产成本和时间的影响，其中坯料尺寸对三个目标值的影响最大。

According to the crankshaft forging production, the optimization on four-cylinder crankshaft forging process chain was researched with billet quality, forging temperature and coefficient of friction as optimization parameters. The optimization objective includes forging energy consumption, production costs and forging time. Three optimization cases were designed in order to compare with the initial case. Based on finite element simulation, the influence of the three parameters on crankshaft forging process was analyzed by the Deform-3D software. The results show that the optimized quality billet and coefficient of friction can reduce forging temperature, forming load and die wear, but lower forging temperature receives the opposite effect. Finally, the influence of nine parameters on forging energy consumption, production costs and time are analyzed based on event-driven simulation，and the maximum impact on the three targets is the billet size.

基金项目：

国家自然科学基金资助项目（51301105）

陈慧芳（1972-），女，硕士，讲师

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