Transactions of Materials and Heat Treatment

Title：Simulation of precision forming process and design of automatic production line for automotive half shaft

Authors： Zhang Peiyan Zou Zhe Xu Wenfang

Unit： Zhengzhou Tourism College

KeyWords： 42CrMo steel automotive half shaft precision forming equivalent stress temperature filed automatic production line

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2024,49(6):43-51

Abstract：

For the problem of forging defect existing in the swing rolling of automotive half shaft, a new precision forming process for automotive half shaft based on the structural characteristics of a certain model of automotive half shaft was proposed. Firstly, the high-temperature compression test was conducted on 42CrMo steel used for automotive half shaft by Gleeble-3500 thermal simulation test machine, and the true stress- true strain curves under different deformation conditions were obtained. Then, the data was imported into the Defrom-3D material library, and the numerical simulation analysis was conducted on the precision forming process of automotive half shaft to analyze the load-time curve of upper die during the forming process, the equivalent stress field distribution of workpiece, the stress distribution of main dies, and the temperature field distribution of workpiece with and without the preheating of dies. And corresponding process tests were conducted, and the obtainbed preformed blank forgings were fully filled, verifying the formability of the proposed precision forming process for automotive half shaft. Finally, based on the process parameters obtained from finite element simulation and process tests, an automatic forging production line for automotive half shaft was designed, and the layout and rhythm of the production line were analyzed, which achieved the whole flow of automatic production and the goal of cost reduction and efficiency increase.The study result has certain guiding significance for the precision forming process and automatic production of automotive half shaft.

Funds：

河南省高等学校重点科研项目(24B430021)

作者简介：张培彦（1979-），男，硕士，副教授,E-mail：zpy20230627@163.com

Reference：

[1]赵静，束学道，胡正寰，等.汽车半轴成形技术研究现状及展望[J].冶金设备，2004，25(6):32-34.

Zhao J，Shu X D，Hu Z H，et al. The future and actuality of study on technology in forming automobile semiaxes [J]. Metallurgical Equipment, 2004, 25 (6): 32-34.

[2]李和平,金曼曼.汽车半轴的热挤压成形工艺[J].锻压装备与制造技术，2003，38(5):35-36.

Li H P, Jin M M. Forming technology of heating extrusion of auto semi-axle [J]. China Metalforming Equipment & Manufacturing Technology, 2003, 38 (5): 35-36.

[3]袁文生，王芳.楔横轧工艺在汽车半轴生产中的应用[J].锻压装备与制造技术，2005，40(3):89-90.

Yuan W S，Wang F. Application of cross wedge rolling technology in production of automobile half shaft [J]. China Metalforming Equipment & Manufacturing Technology, 2005, 40 (3): 89-90.

[4]许伟伟.工程重载用车驱动半轴锻造工艺分析[J].锻造与冲压，2016，(9):33-38.

Xu W W. Analysis of forging process for driving half shafts of heavy duty engineering vehicles[J]. Forging & Metalforming, 2016, (9): 33-38.

[5]张兰.汽车半轴加工工艺改进试验及经济效益分析[J].安徽科技，2003，(8):41.

Zhang L. Improvement test and economic benefit analysis of automotive half axle processing technology [J]. Anhui Science & Technology, 2003, (8): 41.

[6]刘光辉,刘百宣,刘华,等.双法兰式三阀组阀体多向精密成形工艺[J].精密成形工程,2017, 9(2):58-62.

Liu G H, Liu B X, Liu H, et al. Multi-direction precision forming technology of double flanges tri-valve set body [J]. Journal of Netshape Forming Engineering, 2017, 9 (2): 58-62.

[7]陈楠,李瑞迪,袁铁锤，等.激光选区熔化GH3536镍基高温合金组织与性能研究[J].稀有金属,2023,47(5):679-691.

Chen N，Li R D，Yuan T C，et al. Microstructure and properties of GH3536 nickel-based superalloys by selective laser melting[J]. Chinese Journal of Rare Metals，2023,47(5):679-691.

[8]刘乐,殷银银,金宏,等.行星齿轮架中空多向锻造工艺及模具设计[J].制造技术与机床,2022，(6):140-146.

Liu L, Yin Y Y, Jin H, et al. Multi direction forging process and die design of hollow planetary carrier [J]. Manufacturing Technology & Machine Tool, 2022，(6): 140-146.

[9]李应隆,曾梦婷,谭元标，等.应变量对细晶Inconel 718高温合金热变形组织演变的影响[J].稀有金属,2023,47(6):807-814.

Li Y L，Zeng M T，Tan Y B，et al. Microstructure evolution of Inconel 718 superalloy with fine-grains at different strain during hot deformation[J]. Chinese Journal of Rare Metals，2023,47(6):807-814.

[10]李靖南,董瑞峰,陈子帅,等.梯度加热工艺对自由锻GH4720Li高温合金成形性能的影响[J].稀有金属,2022,46(2):162-168.

Li J N，Dong R F，Chen Z S，et al. Formability of free forging GH4720Li superalloy with different gradient heating process[J]. Chinese Journal of Rare Metals，2022,46(2):162-168.

[11]唐庆顺,杨元慧,卢森加,等.汽车转向节模锻工艺改进[J].热加工工艺,2014,43(19):128-130.

Tang Q S, Yang Y H, Lu S J, et al. Die forging process improvement of automobile steering knuckle [J]. Hot Working Technology, 2014,43 (19): 128-130.

[12]吴明清,鲍梅连.基于Deform的汽车铝合金轮毂锻造过程数值模拟[J].铸造技术，2016,37(6):1239-1241，1257.

Wu M Q, Bao M L. Numerical simulation of forging process for Al-alloy car wheel hubs based on DEFORM software [J]. Foundry Technology, 2016,37 (6): 1239-1241,1257.

[13]杜立东.热模锻自动线喷淋润滑系统应用[J].金属加工:热加工,2015,(9):14-16.

Du L D. Application of spray lubrication system in hot die forging automatic line [J]. MW Metal Forming, 2015, (9): 14-16.

[14]唐伟,余传魁,汪昌顺，等.Ti-6Al-4V合金螺栓滚压过程中的组织演变规律研究[J].稀有金属,2023,47(11):1486-1494.

Tang W，Yu C K，Wang C S，et al. Microstructure evolution of Ti-6Al-4V alloy bolt during thread rolling process[J]. Chinese Journal of Rare Metals，2023,47(11):1486-1494.

[15]田亚丁,朱绘丽.基于有限元分析的汽车法兰盘连接件精密锻造工艺[J].锻压技术,2023,48（12）：9-17.

Tian Y D，Zhu H L. Precision forging process on automotive flange connection part based on finite element analysis[J].Forging & Stamping Technology, 2023,48（12）：9-17.

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