锻压技术

基于有限元分析的汽车法兰盘连接件精密锻造工艺

英文标题：Precision forging process on automotive flange connection part based on finite element analysis

作者：田亚丁1 朱绘丽2

分类号：TG316.3

出版年,卷(期):页码：2023,48(12):9-17

摘要：

以一种汽车法兰盘连接件为研究对象，针对生产效率低、成本高、性能差的问题，尝试将多工位自动精密热锻技术应用于生产。根据成形理论制定了预锻、终锻、冲孔3工位锻造方案，并设计了3种不同形状的预锻件；利用热压缩试验得到了锻造材料40CrNiMo钢的流变曲线，并拟合获得了本构方程；利用Deform-3D软件模拟了不同方案下法兰盘连接件的成形过程，根据金属网格流线情况和填充质量分析了各工艺的可靠性；比较了不同方案下的成形载荷和锻件温度的分布情况，并基于模具磨损模型预测了锻模的磨损情况，确定了最佳方案；开展了法兰盘连接件的多工位热锻试验，试验结果与预测结果一致，各工位锻件成形良好，无缺陷，尺寸性能满足要求，并且锻造过程稳定、速度快。

For the problems of low production efficiency, high cost and poor performance of a type of automotive flange connection part, the multi-station automatic precision hot forging technology was attempted to apply to the production. Then, based on the forming theory, a 3-station forging plan of pre-forging, final forging and punching was formulated, and three different shapes of pre-forgings were designed. Furthermore, the rheological curve of forging material 40CrNiMo steel was obtained by hot compression test, and the constitutive equation was fitted. The forming processes of flange connection part under different schemes were simulated by using software Deform-3D, and the reliability of each process was analyzed based on the streamline situation of metal grid and the filling quality. The forming load and temperature distribution of forgings under different schemes were compared, and the wear of forging mold was predicted based on the mold wear model, and the optimal scheme was determined. Finally, a multi-station hot forging test of flange connection part was conducted, and the test results are consistent with the predicted results, the forgings at each station are well formed without defects, the dimensional performance meets the requirements, and the forging process is stable and fast.

基金项目：

2022年度河南省科技厅科技攻关项目（232102220092）

作者简介：田亚丁（1976-），男，本科，副教授 E-mail：xixihaha1217@aliyun.com

参考文献：

[1]徐伟,万轶,沙鑫美.模具加载方式对传动用螺旋伞齿轮闭式锻造工艺的影响[J].锻压技术,2022,47(6):75-80.

Xu W,Wan Y,Sha X M.Influence of mold loading mode on closed forging process for transmission spiral bevel gear[J].Forging & Stamping Technology,2022,47(6):75-80.

[2]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):111-113，116.

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):111-113，116.

[3]林雅杰,仲太生,丁武学.车用齿轮毛坯多工位精密热模锻工艺分析及模具设计[J].锻压装备与制造技术,2019,54(3):82-87.

Lin Y J,Zhong T S,Ding W X.Process analysis and die design of multi-station precision hot die forging for automotive gear blank[J].China Metalforming Equipment & Manufacturing Technology,2019,54(3):82-87.

[4]徐君燕,卜建荣,朱楠.带肋板齿轮坯闭式热精锻成形工艺的数值模拟改进[J].机械工程材料,2017,41(3):103-106.

Xu J Y,Bu J R,Zhu N. Numerical simulation of closed hot precision forging process improvement for gear blank with ribbed plate[J].Materials for Mechanical Engineering,2017,41(3):103-106.

[5]胡锦玲,胡强.基于有限元的转轴多级锻造成形仿真及试验研究[J].热加工工艺,2019,48(7):164-167.

Hu J L,Hu Q.Simulation and experimental research on multi-stage forging forming of rotary shaft based on finite element[J].Hot Working Technology,2019,48(7):164-167.

[6]郭艳珺,程俊伟,常世超,等.短轴滑动叉模锻工艺[J].塑性工程学报,2022,29(4):45-50.

Guo Y J,Cheng J W,Chang S C,et al. Die forging process of short shaft slid fork[J].Journal of Plasticity Engineering,2022,29(4):45-50.

[7]郭晶玉,邓小虎,郑宝星,等.Ti55531钛合金扭力臂热锻成形工艺设计及优化[J].精密成形工程,2021,13(2):96-104.

Guo J Y, Deng X H, Zheng B X, et al. Design and optimization for hot forging process of Ti55531 titanium alloy twisting force arm[J].Journal of Netshape Forming Engineering,2021,13(2):96-104.

[8]陶剑锋.机车突缘叉模锻工艺研究[D].大连：大连交通大学,2021.

Tao J F. Research on Die Forging Process of Locomotive Flange Fork[D]. Dalian：Dalian Jiaotong University,2021.

[9]尹小燕,骆静,朱杰.基于Hansel-Spittel模型的齿环用HAl61-4-3-1合金本构模型构建[J].重庆理工大学学报:自然科学,2021,35(1):111-117,167.

Yin X Y,Luo J,Zhu J.Construction of high-temperature constitutive model of HAl61-4-3-1 alloy for synchronizer ring based on Hansel-Spittel model[J].Journal of Chongqing University of Technology: Natural Science,2021,35(1):111-117,167.

[10]殷剑,黎诚,金康,等.基于响应面法和修正Archard磨损理论的汽车前下摆臂热锻模具应力与磨损分析[J].锻压技术,2022,47(6):231-238.

Yin J,Li C,Jin K,et al.Stress and wear analysis on hot forging mold for automobile front lower swing arm based on response surface method and modified Archard wear theory[J].Forging & Stamping Technology,2022,47(6):231-238.

[11]刘洋,李峰光,刘建永,等.基于CAE分析的热锻模具磨损部位预测及验证[J].湖北汽车工业学院学报,2021,35(2):58-63,69.

Liu Y,Li F G,Liu J Y,et al.Prediction and verification of hot forging die wear based on CAE analysis[J].Journal of Hubei University of Automotive Technology,2021,35(2):58-63,69.

[12]黎运宇.基于DEFORM 3D的凸轮等温锻造工艺数值模拟[J].热加工工艺,2017,46(19):136-138.

Li Y Y. Numerical simulation of cam isothermal forging process based on DEFORM 3D[J].Hot Working Technology,2017,46(19):136-138.

[13]王晓伟.基于有限元分析的汽车十二角半轴螺母冷镦工艺开发与应用[J].塑性工程学报,2023,30(7):62-70.

Wang X W. Development and application of cold upsetting process for automobile twelve corner half axle nut based on finite element analysis[J].Journal of Plasticity Engineering,2023,30(7):62-70.

[14]王以华.锻模设计技术及实例[M].北京:机械工业出版社,2009.

Wang Y H. Forging Die Design Technology and Examples[M].Beijing: China Machine Press,2009.

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