6061铝合金汽车转向节的预锻优化设计应用研究  

Research on pre-forging optimization design of 6061 aluminum alloy steering knuckle

作　　者：徐皓 刘江 林雪冬[1] 李诚[1] XU Hao;LIU Jiang;LIN Xue-dong;LI Cheng(Chongqing Vocational Institute of Engineering,Chongqing University,Chongqing 402246,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]重庆工程职业技术学院,重庆402246 [2]中国科学技术大学,安徽合肥230026

出　　处：《轻合金加工技术》2020年第5期41-44,50,共5页Light Alloy Fabrication Technology

基　　金：重庆市教委科学技术研究项目(项目编号:KJQN201903404)。

摘　　要：转向节是汽车上的重要保安件.随着汽车制造技术不断提升,转向节结构愈来愈复杂,一般属S4级,制造转向节的关键在于模具设计及其生产工艺.S100汽车转向节为枝丫状结构,实际生产中出现“后羊角”成形困难的难题,使产品合格率低.基于Deform有限元数值模拟分析,对6061铝合金S100汽车转向节预锻模具进行优化设计后试生产,消除了“后羊角”部位折叠等锻造缺陷,并且使材料利用率显著提高,比优化前节约铝材0.11kg/只,产品合格率由原先92.3%提升至98.9%,经济效益显著.Steering knuckle is an important safety part on cars.With the continuous improvement of automobile manufacturing technology,the structure of steering knuckle becomes more and more complex,which is generally S4 class.The key to the successful manufacturing of its parts lies in mold design and manufacturing technology.The S100 steering knuckle is a branch-like structure,and it is difficult to form the posterior horn,which leads to the low pass rate of the product.Based on Deform finite element numerical simulation analysis,the preforging die of 6061 aluminum alloy S100 automobile steering knuckle was optimized for trial production.The forging defects such as fold of posterior horn were eliminated,and the material utilization rate was significantly increased,0.11 kg/piece of aluminum was saved compared with that before optimization,and the passing rate of products was increased from 92.3% to 98.9%,with significant economic benefits.

关 键 词：6061铝合金 转向节 预锻 有限元模拟 优化处理 

分 类 号：TG319[金属学及工艺—金属压力加工]