锻压技术

基于Deform-3D的花键轴叉热锻成形工艺优化

英文标题：Process optimization on hot forging for spline shaft fork based on Deform-3D

作者：张学奇董万鹏苏钰孙礼宾范越张立艳

分类号：TG315.2

出版年,卷(期):页码：2017,42(1):5-9

摘要：

针对花键轴叉锻件传统锻造工艺耗料多的问题，提出立式预锻、杆部热挤成形的预锻成形方法，给出了立式预锻的模具结构设计，并对热挤预锻模具进行了参数优化，解决了充填不足的问题，最终锻出低能耗、低料耗、高生产率的合格锻件。基于Deform-3D有限元分析软件模拟观察到花键轴叉锻件的成形过程，准确分析出缺陷形成的原因和工艺优化后锻件成形效果。通过实际生产验证了模拟结果的可靠性，在优化预锻件脱模斜度和终锻模具桥部参数后，生产效率提高至少20%，料耗节省约15%，终锻模具磨损量降低约25%，模具寿命得到明显提升。

For the problem of excessive material consumption in the traditional forging process for spline shaft fork, the vertical pre-forging and stem hot extrusion were put forward, and the die structure design in the vertical pre-forging was given. Then, the hot extrusion mold parameters were optimized to solve the insufficient filling problem. Finally, the qualified forging workpieces were produced with less energy consumption, less material consumption and higher productivity. Furthermore, the forging process of spline shaft fork was observed by the finite element analysis software Deform-3D, and the causes of defect and the forming effects after parameter optimization were accurately analyzed. It is proved that the simulation results are reliable through actual production. Actual production shows that the productivity is increased by 20% at least, the material consumption is saved about 15%, the final forging die wear is decreased by about 25%, and the die life is increased obviously by the optimum parameters of pre-forging ejection gradient and final forging die bridge.

基金项目：

国家自然科学基金资助项目（51301105）；上海工程技术大学研究生科研创新资助项目（15KY0508）

张学奇（1990-），男，硕士研究生 E-mail：296129023@qq.com 通讯作者：董万鹏（1976-），男，博士，副教授 E-mail：dong@sues.edu.cn

参考文献：

[1]中国锻压协会. 汽车典型锻件生产[M]. 北京:国防工业出版社, 2009.

The Chinese Association of Forging. Typical Car Forgings Production[M]. Beijing: National Defence Industry Press, 2009.

[2]Francesco Gagliardi, Teresa Citrea, Giuseppina Amvrogio, et al. Influence of the process setup on the microstructure and mechanical properties evolution in porthole die extrusion [J]. Materials and Design, 2014, 60(8): 274-281.

[3]李建勋, 袁浩然. 花键轴叉卡簧槽距中频前后尺寸变化原因及工艺改进[A]. 河南省汽车工程学会. 第八届河南省汽车工程科技学术研讨会论文集(下)[C].许昌, 2011.

Li J X, Yuan H R. Craftwork improvement and size change cause on groove distance of spline screw before and after intermediate frequency[A]. Automotive Engineering Institute of Henan Province. The Eighth Automotive Engineering Science and Technology Academic Symposium Proceedings (Part 2)[C]. Xuchang, 2011.

[4]《锻模设计手册》编写组. 锻模设计手册[M]. 北京: 机械工业出版社, 1991.

Editorial Committee of Forging Die Design Manual. Forging Die Design Manual[M]. Beijing: China Machine Press, 1991.

[5]周杰, 齐文涛, 陶亚平，等. 转向节闭式挤锻工艺多目标优化设计[J]. 北京工业大学学报, 2015,41(7): 1108-1113.

Zhou J, Qi W T, Tao Y P, et al. Closed extrusion-die forging process of steering knuckle for multi-objective optimization design[J]. Journal of Beijing University of Technology, 2015,41(7):1108-1113.

[6]于朋朋, 李霞, 王宇晓, 等. 花兰叉热锻工艺优化[J]. 热加工工艺,2015,44(23): 157-159.

Yu P P, Li X, Wang Y X, et al. Process optimization of hot forging for turnbuckle fork[J]. Hot Working Technology, 2015,44(23): 157-159.

[7]周杰,张渝,安治国, 等. 基于遗传算法的锻模阻力墙结构多目标优化设计[J]. 机械工程学报, 2010, 46(14): 85-90.

Zhou J, Zhang Y, An Z G, et al. Multi-objective optimization design of forging-die resistance wall structure based on genetic algorithm[J]. Journal of Mechanical Engineering, 2010, 46(14): 85-90.

[8]Seunghyeon Cheon, Naksoo Kim. Prediction of tool wear in the blanking process using updated geometry[J]. Wear, 2016, 352-353: 160-170.

[9]胡建军,李小平. Deform-3D塑性成形CAE应用教程[M].北京：北京大学出版社, 2011.

Hu J J, Li X P. Tutorial of Deform-3D Plastic Forming CAE Application[M]. Beijing: Peking University Press, 2011.

[10]刘东. 5CrMnMo钢制热锻模热处理工艺改进[J]. 煤矿机械, 2009, 30(4): 99-100.

Liu D. Improvement on heat treatment of 5CrMnMo steel hot forging dies[J].Coal Mine Machinery, 2009, 30(4): 99-100.

[11]桂长林. Archard的磨损设计计算模型及其应用方法[J]. 润滑与密封,1990, (1): 12-21.

Gui C L. Model of Archards wear design calculation and its application method[J]. Lubrication and Sealing, 1990, (1):12-21.

[12]付锐,李福林,尹法杰,等. 多向整体锻造在变形FGH96合金涡轮盘制备中的应用[J/OL]. 稀有金属, http://www.cnki.net/kcms/detail/11.2111.TF. 20160712.0940.001.html.

Fu R, Li F L,Yin F J, et al. Application of multiple integral forging in preparation of wrought superalloy FGH96 turbine disk[J/OL].Chinese Journal of Rare Metals, http://www.cnki.net/ kcms/detail/11.2111.TF.20160712.0940.001.html.

[13]GB/T 13320—2007, 钢制模锻件金相组织评级图及评定方法[S].

GB/T 13320—2007, Metellographic grading atlas and assessing method for steel die forgings[S].

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