锻压技术

一种连接传动件的锻造工艺仿真及优化

英文标题：Simulation and improvement on forging process for a connecting transmission part

作者：陈保山1 逯云杰2

分类号：TG316.3

出版年,卷(期):页码：2023,48(3):20-26

摘要：

以一种连接传动件为研究对象，针对现有工艺锻造产品质量差、使用期限短的问题，通过Deform11.0对锻件的成形工艺进行了仿真研究。结果显示，锻件外形虽成形完整，但在预锻工序中出现了金属对流现象，导致了折叠缺陷的产生，从而影响锻件的成形质量。为此，对预锻件的形状进行改进，设计了两种方案，分别进行了预锻、终锻的成形模拟验证，并比较了两道工序的锻造成形力。研究表明：改进后的方案能够改善金属的流动情况，解决对流引起的折叠缺陷；此外，方案2需要的锻造成形力更小，能够减小模具的负载。最终基于方案2进行了锻造试验，得到的连接传动件的成形外观好、切断截面锻造流线连续、无金属折叠缺陷、各尺寸检验合格，达到了工艺要求。

For a connecting transmission part, aiming at the problems of poor quality and short service life for product forged by curvent process, the forming process of forging was simulated by Deform 11.0. The results show that although the formging shape of forgings is complete, the metal convection phenomenon appeares in the pre-forging process, resulting in the formation of folding defects, which affectes the forming quality of forgings. For this reason, the shape of pre-forgings was improved, and two schemes were designed. Then, the forming simulation verification of pre-forging and final forging were carried out respectively, and the forging forces of the two processes were compared. The research shows that the improved scheme can improve the metal flow and solve the folding problem caused by convection. In addition, scheme 2 requires less forging force and can reduce the load of mold. Finally, the forging test was carried out based on scheme 2. The forming appearance of the obtained connecting transmission part is good, the forging streamline of cut-off section is continuous, there is no metal folding defect, and the inspection of each dimension is qualified, which meets the process requirements.

基金项目：

作者简介：陈保山（1983-），男，硕士，讲师 E-mail：baoshan198302@163.com 通信作者：逯云杰（1980-），男，学士，副教授 E-mail：330809737@qq.com

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