锻压技术

JMC轻卡汽车转向节锻件设计及Deform数值模拟分析

英文标题：Design on steering knuckle forgings for JMC truck and analysis on numerical simulation of Deform

作者：徐皓刘江

分类号：TG315.2

出版年,卷(期):页码：2020,45(5):14-19

摘要：

通过客户提供的JMC轻卡汽车转向节零件图，分析零件形状结构，并结合现有挤压成形工艺和锻压设备，计算出该转向节的坯料尺寸，设计出轻卡转向节锻件图，制定相应的锻造工艺。采用Deform有限元数值模拟方法，对JMC轻卡汽车转向节锻件进行设计并进行吨位载荷、预锻变形温度场及终锻材料成形的模拟仿真实验。根据仿真结果，在优化锻造工艺后，进行实际生产验证。将得出的有限元数值模拟结果与预生产实际情况进行比较，证明了研究结果真实可靠。这不仅确保了生产锻件的可靠性，提高了锻件内部质量，而且还大幅延长了锻模的寿命，降低了模具修复成本，将锻件产量由之前每班900件增加到1100件。为后续类似结构的新产品研发提供了有益的借鉴。

According to the part drawing of steering knuckle for JMC truck provided by customer, the shape and structure of part were analyzed, and the blank size of steering knuckle was calculated by combining the existing extrusion process with the forging equipment. Then, the forging drawing of steering knuckle for JMC truck was designed, and the corresponding forging process was formulated. Furthermore, the tonnage load, pre-forging deformation temperature field and final forging material forming of steering kunckle forgings for JMC truck were simulated by the finite element numerical simulation method of Deform. According to the numerical simulation results, the actual production verification was conducted after the forging process was optimized, and the results of finite element numerical simulation were compared with the actual conditions of pre-production to verify the authenticity of the research results. Thus, the reliability of forging production is ensured, the internal quality of forgings is improved, the life of forging dies is extended significantly, the cost of mold repair is reduced, and the forging output is increased from 900 pieces to 1100 pieces, which provides a useful reference for the development of new products with similar structure.

基金项目：

重庆市教委科学技术研究项目（KJQN201903404）

徐皓（1979- ），男，硕士，教授级高级工程师，国家高级技师，E-mail：xuhaolj@mail.ustc.edu.cn

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