汽车轮毂精锻成形工艺与自动化精锻生产线的研发及应用  

Development and application of automobile wheel hub precision forging process and automated precision forging production line

作　　者：冯仪[1,2] 余俊 夏自力 曾凡宜 夏巨谌 邓磊[1] 王勇[3] 朱永吉[3] Feng Yi;Yu Jun;Xia Zili;Zeng Fanyi;Xia Juchen;Deng Lei;Wang Yong;Zhu Yongji(State Key Laboratory of Material Processing and Die and Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China;Wuhan New Wish Technology Co.,Ltd.,Ezhou 436070,China;Huazhong Numerical Control Co.,Ltd.,Wuhan 430223,China)

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074 [2]武汉新威奇科技有限公司,湖北鄂州436070 [3]武汉华中数控股份有限公司,湖北武汉430223

出　　处：《锻压技术》2021年第11期11-17,共7页Forging & Stamping Technology

基　　金：国家重点研发计划(2018YFB1309100);湖北省重点研发计划(2020BAB040)。

摘　　要：根据新型汽车前轮毂的功能及结构特点,提出了锻件按精密级设计,以及采用无飞边和小飞边即平面薄飞边两种精锻成形工艺方案,并采用经典塑性成形理论及模锻成形工艺知识对两种工艺方案进行可行性分析;进而采用热力耦合有限元法及Deform-3D软件对两种方案进行模拟验证,包括利用其中的损伤理论及相应的模块对小飞边方案中由圆柱体坯料一次精锻成形为最终锻件的过程进行模拟,研究了5个外突缘内部损伤值分布情况;基于上述研究结果,在综合分析比较的基础上,确定小飞边方案作为生产应用方案并设计了精锻生产线,包括生产流程的确定、设备选型及吨位确定和生产线的平面布置等,最后介绍了生产应用情况及效果。According to the function and structural characteristics of the new automobile front wheel hub,a design of precision level for forgings was put forward,namely,two kinds of precision forging process schemes with no flash and small flash which was flat and thin flash were adopted,and the feasibility of two process schemes was analyzed by classical plastic forming theory and die forging process knowledge.Then,the two schemes was verified and simulated by the thermo-mechanical coupling finite element method and software Deform-3 D,including the use of the damage theory and corresponding modules to simulate the process of one-time precision forging for cylinder blank to the final forgings in scheme 2,and the distributions of internal damage values for five outer flanges were studied.Based on the above research results,on the basis of comprehensive analysis and comparison,the scheme 2 was selected as the final production application scheme,and the precision forging production line was designed,including the determination of production process,equipment selection,tonnage determination and production line layout.Finally,the production application and effect were introduced.

关 键 词：汽车轮毂 精锻成形 热力耦合有限元法 损伤理论 小飞边 

分 类 号：TG316[金属学及工艺—金属压力加工]