锻压技术

双轮缘行车轮的轧制成形工艺

英文标题：Rolling process of double flange driving wheel

作者：张鹏

分类号：TG335

出版年,卷(期):页码：2018,43(1):97-101

摘要：

针对一次模锻成形双轮缘行车轮的弊端，基于成熟的“模锻＋轧制复合成形”火车轮专用生产线，对双轮缘行车轮的成形工艺进行了研究。通过分析双轮缘行车轮的结构特点，对现有轧机设备进行了改造。首先提出采用轧制直踏面行车轮的工艺方案进行加工，其中双轮缘部位由机加工完成，工艺试制后合格率为93.1%，毛坯质量基本趋于稳定。之后提出了双轮缘轧制工艺方案，并设计和改进了模具结构，工艺试制后合格率达到96.4%，毛坯尺寸及外观质量理想。最后使用该锻轧成形工艺对其他双轮缘行车轮进行了批量生产验证，合格率较高，进一步提高了成材率。另外，根据多种行车轮结构尺寸设计了通用化模具，缩短了制造周期，提高了生产效率。

For the disadvantages of one-step die forging for double flange driving wheel, based on the special production line of “die forging and rolling compound forming” for train wheels, the forming technology of double flange driving wheel was studied, and the existing rolling mill equipment was improved by analyzing the structure characteristics of double flange driving wheel. First of all, a technological plan for rolling straight tread driving wheels was proposed, and the double flange parts were machined with a qualified rate of 93.1% and a stable quality of billet. Then, the double flange rolling process plan was put forward, and the die structure was designed and improved with a qualified rate of 96.4% and an ideal size and appearance quality of billet. At last, this forging and rolling process was verified by the batch production of the other driving wheels with a high qualified rate and higher material availability. In addition, a versatile die was designed according to the structure and size of variety of driving wheels, the manufacturing cycle was deduced and the production efficiency was improved.

基金项目：

作者简介：张鹏（1987-），男，学士，工程师，E-mail：517540245@qq.com

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