锻压技术

基于AFDEX的轮毂热锻成形工艺研究

英文标题：Research on hot forging process for hub based on AFDEX

关键词：AFDEX 有限元模拟轮毂热锻

分类号：

出版年,卷(期):页码：2016,41(4):139-144

摘要：

为了提高材料利用率和成形效率，采用闭式无飞边热锻成形工艺，应用有限元AFDEX软件对汽车轮毂热锻三工步成形过程进行了有限元模拟，得到了等效应变分布、金属流动、载荷-时间曲线、金属流线等结果，根据模拟结果的分析，设计了轮毂成形的模具结构，并通过工艺试验得到了成形零件。通过对试验零件的成形载荷、零件尺寸、金属流线的分析发现，试验零件尺寸满足要求、成形良好、无明显缺陷，与有限元模拟结果基本一致，证明了AFDEX数值模拟的可靠性及成形工艺的可行性。

To improve the material utilization and forming productivity, three-step hot forging process for automobile hub was simulated by AFDEX software applying the closed hot forging without flash process，and the effective strain distribution, metal flow, load-time curves and flow line etc., were obtained. By analyzing the simulated results, the die structure of hub forming was designed, and the formed hub was made by practical experiment. After checking the forming load, component size and metal flow line of the experimental hub, it is found that the requirements of the size with good forming and no significant defect is fully met，and is consistent with the simulation. So the numerical simulation based on AFDEX for hub forming is reliable and the forming process for hub is feasible.

基金项目：

国际科技合作与交流专项（2015DFA51740）

刘维坊（1987-），男，硕士研究生

参考文献：

[1]黎桂华，周彦平,龙正英，等. 我国轿车轮毂轴承单元开发关键技术研究进展[J]. 轴承，2012（4）：57-62.

Li G H, Zhou Y P, Long Z Y, et al. Progress of key technologies for development of hub bearing units for domestic passenger cars [J]. Bearing, 2012,(4):57-62.

[2]郭巍. 轿车轮毂轴承单元精锻工艺设计及数值模拟[D]. 武汉：武汉理工大学，2008.

Guo W. The Process Engineering and Numerical Simulation on Precision of Hub Unit Bearing [D]. Wuhan: Wuhan University of Technology, 2008.

[3]王明昊，易威威. 精密锻造在汽车工业中的应用[J]. 金属加工，2010，(5)：27－30.

Wang M H,Yi W W. Application of precision forging in automobile industry [J]. Metal Working,2010,(5):27-30.

[4]王彦伟, 罗继伟, 李尚勇.轮毂轴承接触受力的整体三维有限元分析[J]. 机械设计与制造，2008,(5):8-10．

Wang Y W, Luo J W, Li S Y. Whole 3D contact analysis of hub unit using FEA method [J]. Mechanical Design ＆ Manufacture, 2008,(5): 8-10.

[5]董湘怀.材料成形计算机模拟[M].北京:机械工业出版社,2005.

Dong X H. Computer Simulation of Material Forming [M]．Beijing: China Machine Press，2005．

[6]李泽勇，张宝红. 内六方空心件挤压成形金属流动规律研究[J]. 锻压技术，2014，39（3）：132-136.

Li Z Y, Zhang B H. Study on the law of metal flow for hexagon hollow pieces in extrusion forming process [J]. Forging ＆ Stamping Technology, 2014,39(3):132-136.

[7]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. Die Design Techniques and Examples [M]. Beijing: China Machine Press,2009.

[8]张鲁和. 模具失效与防护[M]. 北京：机械工业出版社， 1998.

Zhang L H. Die Failure and Protection [M]. Beijing: China Machine Press, 1998.

[9]李天兴，张迅雷，傅建中,等. 轿车用齿坯精锻工艺参数与模具结构对金属流线的影响[J]. 机械传动，2015,39（10）：154-158.

Li T X, Zhang X L, Fu J Z, et al. Influence of the technological parameter and die structure on metal flow line for precision forging car gear blank[J]. Mechanical Transmission, 2015,39(10):154-158.

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