Transactions of Materials and Heat Treatment

Title：Optimization analysis on forging mold for automotive hub flanges

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ClassificationCode：TG316

year,vol(issue):pagenumber：2022,47(7):220-227

Abstract：

In order to improve the life of forging mold for automobile hub flange, reduce the machining allowance after forging and material waste, the optimization design of hub flange forging mold was carried out. Firstly, the forming process of hub flange forging was numerically simulated by software DEFORM-3D, and the strain state and overall forming rate of the material in the forming process were analyzed. Secondly, by judging the defect positions that were easy to occur in forging through the simulation of forming process, the optimal design of the forging mold was completed, and the best forging scheme was determined. Finally, the forging effect of the optimized mold was verified by experiments. The analysis and experimental results show that the number of burrs in the optimized scheme is less, the change of load curve is stable, and the speed is low. The maximum load of punch is 111000 kN, and the forging load is reduced by 2%. The optimized mold improves the fillet size and draft angle, increases the forging blind hole at the bottom, further reduces the machining allowance, and reduces the weight by 127.8 g compared with that before optimization. The maximum equivalent stress of forgings in the forming process is reduced, and the risk of cracking at the root of the flange is avoided.

Funds：

乏燃料溶解器技术第二阶段研究（KY1773）；面齿轮传动啮合特性研究；安徽省自然科学基金面上项目（2108085ME167）；安徽省教育厅自然科学重点项目（KJ2020A0073）；安徽省重点研究与开发计划项目（201904a05020005）；安徽省科技重大专项（201903a02050014）；泰州市双创计划企业创新类资助项目

作者简介：李晓贞（1983-），男，博士，讲师 E-mail：lixzh@ahstu.edu.cn

Reference：

[1]曲杰，徐小琴，胡焱松.轮毂轴承法兰热锻工艺优化方法研究[J].机械设计与制造工程,2017, 46(2):40-45.

Qu J, Xu X Q, Hu Y S. Study on optimization method of hot forging process of wheel hub bearing flange[J]. Machine Design and Manufacturing Engineering, 2017, 46(2):40-45.

[2]姚文俊，陈松. 汽车法兰轴结构件塑性成形工艺分析及改进[J]. 锻压技术，2020,45(11):7-12.

Yao W J，Chen S. Analysis and improvement on plastic forming process for structure part of automobile flange shaft [J]. Forging & Stamping Technology，2020,45(11):7-12.

[3]孙维燕. 差速器半轴法兰精密锻造成形工艺与微观组织研究[D].济南：山东大学,2019.

Sun W Y. Research on Precision Forging Process and Microstructure of Half Axle Flange of Differential Mechanism[D]. Jinan: Shandong University, 2019.

[4]陈岩，陈修琳，陆敏，等. 用钛合金板锻造带球形法兰芯轴型零件新工艺[J].锻压技术，2020,45(6):40-44.

Chen Y, Chen X L, Lu M, et al. New technology of forging mandrel part with spherical flange for titanium alloy plate[J]. Forging & Stamping Technology，2020,45(6):40-44.

[5]袁兆静. 轮毂轴承开裂原因分析[J].热处理,2021,36(3):60-63.

Yuan Z J. Analysis on the causes of hub bearing cracking[J]. Heat Treatment, 2021, 36(3):60-63.

[6]张高峰，黄德杰，靳阳，等.侧向冲击对轮毂轴承性能影响的试验研究[J].机电工程,2021,38(7):879-885.

Zhang G F, Huang D J, Jin Y, et al. Experiment on the influence of lateral impact on the performance of wheel bearings[J]. Journal of Mechanical ＆ Electrical Engineering, 2021, 38(7):879-885.

[7]汽车轮毂轴承法兰盘半闭式模锻技术研究. 广东省,韶关学院,2006-11-03.

Research on semi-closed die forging technology for automotive wheel bearing flanges. Guangdong Province,2006-11-03.

[8]李振红，黄英娜，陈聪，等.基于DEFORM的轮毂法兰盘锻造工艺优化设计[J]. 热加工工艺, 2015，44(21):111-113.

Li Z H, Huang Y N, Chen C, et al. Optimum design of hub flange forging process based on DEFORM[J].Hot Working Technology, 2015，44(21):111-113.

[9]丁远航. 基于DEFORM的轮毂轴承法兰热锻工艺优化[D]. 广州：华南理工大学, 2014.

Ding Y H. Optimization of Hot Forging Process of Wheel Hub Bearing Flange Based on DEFORM[D]. Guangzhou: South China University of Technology, 2014.

[10]李彦涛，董文正，林启权，等.端部带法兰特征的筒形零件板锻造成形[J].锻压技术, 2021,46(9):262-269.

Li Y T, Dong W Z, Lin Q Q, et al. Plate forging of cylindrical part with flange features at end[J].Forging & Stamping Technology,2021,46(9):262-269.

[11]赵国群，贾玉玺，王广，等.圆盘锻件纯形状锻造模具优化设计[J]. 机械工程学报, 1999，(4):81-84.

Zhao G Q, Jia Y X, Wang G, et al. Optimization of pure shape forging die design for disc forgings[J]. Journal of Mechanical Engineering，1999，(4):81-84.

[12]夏巨谌. 中国模具工程大典第五卷—锻造模具设计[M]．北京：电子工业出版社，2007.

Xia J C. Design of Forging Die for Volume 5 of China Die Engineering Code[M]. Beijing: Electronic Industry, 2007.

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