锻压技术

一种制动杠杆螺栓用不锈钢热变形行为及锻造工艺

英文标题：Thermal deformation behavior and forging process of stainless steel for brake lever bolt

作者：王涛刘光辉刘丹汪金保张超刘华

分类号：TG314.3

出版年,卷(期):页码：2020,45(4):28-32

摘要：

为研究一种制动杠杆螺栓用不锈钢材料的热变形行为及锻造工艺，利用热模拟试验机对材料进行了高温压缩试验，得到了该材料的真应力-真应变曲线和显微组织。将高温压缩试验得到的数据导入有限元模拟软件Deform-3D中，对制动杠杆螺栓的成形过程进行了数值模拟，分析了成形过程中的载荷-行程曲线、等效应力场分布等，最后根据优化得到的工艺参数设计了相应模具，并做了工艺试验，工艺试验得到的制动杠杆螺栓锻件充填饱满、尺寸符合要求、锻造流线分布合理，且锻件经过机加工后，没有发现锻造缺陷，符合使用要求。该研究对此类零件的生产具有一定的指导意义。

In order to study the thermal deformation behavior and forging process of stainless steel material for brake lever bolt, a high temperature compression test for the material was carried out using a thermal simulator, obtaining the true stress-true strain curve and microstructures of this material. The data obtained from high temperature compression test were imported into a finite element simulation software Deform-3D to numerically simulate the forming process of brake lever bolt, and the load-stroke curve and the distribution of equivalent stress field in the forming process were analyzed. The corresponding die was designed according to optimized process parameters, and the subsequent process test was carried out. It shows that the brake lever bolt forgings are obtained by process test with full filling, required size and reasonable forging streamline distribution, and no forging defects are found after maching, which could meet the requirements of use. The research has certain guiding significance for the production of this kind of part.

基金项目：

郑州市科技重大专项资助项目（152PZDZX007）

王涛(1986-),男,硕士,工程师 E-mail：13623815363@163.com 通讯作者：刘华（1962-），男，博士，博士生导师，研究员 E-mail：13903832971@163.com

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