锻压技术

汽车滑动叉闭式模锻工艺研究

英文标题：Study on closed die forging process for auto slide fork part

作者：程俊伟李思忠冯宪章蒋志强

单位：郑州航空工业管理学院

分类号：

出版年,卷(期):页码：2014,39(1):21-24

摘要：

针对某型号汽车滑动叉锻件的形状特点，对其进行了闭式模锻工艺分析，金属的主要成形方式为正挤压、镦粗复合成形；根据金属流动规律，在合理的位置设计了余料腔。建立了滑动叉三维数值模型，进行了数值模拟，验证了工艺分析的合理性。根据模拟结果设计了平锻模具，并进行了工艺实验，得到了优质锻件。实验结果表明，相对于开式模锻成形，用平锻一次挤压成形，工步少、材料消耗低，经济效益好。

According to the shape characters of a type of auto slide fork part, the closed die forging process was analyzed, and the main metal forming methods were compound deform with forward extrusion and upset. Based on the law of metal flowing, the excess material cavity was designed at the proper position. A three- dimensional finite element model slide fork was created and the simulation of the metal flow was done, then the process analysis was validated. At last, the horizontal forging die was manufactured according to the simulation results and the quality forgings were obtained through process test. The results show that compared with open die forging, the horizontal forging at one step has advantages of less steps，lower material cost and good economic benefit.

基金项目：

河南省科技攻关计划项目（122102210463, 102102210152);河南省教育厅科技攻关计划项目(2010A450001)

程俊伟（1973-），男，博士，副教授

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