锻压技术

导电杆冷锻成形数值模拟与工艺优化

英文标题：Numerical simulation and process optimization on cold forging of conductive rod

作者：朱红亮王广欣陈学文张家银刘佳琪

单位：河南科技大学

分类号：TG316

出版年,卷(期):页码：2019,44(4):16-21

摘要：

利用Forge-3D有限元模拟软件，分别对导电杆冷锻成形的两种不同工艺方案进行数值模拟，获得了导电杆不同工艺方案变形过程中的应力、应变分布和载荷变化，并对其进行分析与比较，选择最优的工艺方案。发现第2种工艺方案在锻造过程中各工位模具载荷较小且分布均匀，同时生产的零件表面质量好、无缺陷，且所需工位较少，能够提高生产效率，符合优化的目标。经模拟分析和实验验证，表明按照第2种方案生产出的零件填充饱满、无折叠毛刺等缺陷，这基本符合数值模拟结果，也适用于锻造行业低损耗、尺寸精度高和生产效率高等需求，因此，第2种工艺方案更符合此优化目标要求。

Two different process schemes of cold forging for conductive rod were numerical simulated by finite element software Forge-3D to obtain the distribution of stress and strain and the load changes of conductive rod in different process schemes, and the optimal process scheme was selected through analysis and comparison. It is found that the die load is small and distributes uniformly in each workstation during the forging process in the second process scheme, and the produced parts have high surface quality and no defect. Furthermore, the required workstation is less to increase the production efficiency, and the objective of optimization is met. The simulation and experimental results show that the parts produced by the second process scheme are fully filled without folding burrs, which is basically in line with the numerical simulation results and also applicable to the requirements of forging industry for low loss, high dimensional accuracy and high production efficiency. Thus, the second process scheme is more suitable for this optimization objective.

基金项目：

02专项（2017ZX02408003）

作者简介：朱红亮（1992-），男，硕士研究生 E-mail：zhuhlzgbl@163.com 通讯作者：陈学文（1970-），男，博士后，特聘教授 E-mail：chenxwdavid@163.com

参考文献：

[1] 王斌,何柏林,江民华,等.DEFORM-3D有限元软件在冷挤压工艺模拟中的应用[J].铸造技术,2013,34(4):474-476.

Wang B,He B L,Jiang M H, et al. Application of DEFORM-3D software in simulation of cold extrusion process [J]. Foundry Technology,2013,34 (4):474-476.

[2] 胡郑重,姚三九,郭玉峰.凝固模拟在铝合金导电杆结构优化中的应用[J].特种铸造及有色合金,2016,36(6):646-648.

Hu Z C, Yao S J, Guo Y F. Application of solidification simulation in structure optimization of aluminum alloy conductive rod [J].Special Casting & Nonferrous Alloys,2016,36(6):646-648.

[3] 曹守亮,张莹,陈莹莹,等.车用齿轮轴冷挤压成形模拟及反挤压工艺参数优化[J].模具技术,2018, (2):1-7,36.

Cao S L,Zhang Y, Chen Y Y, et al. Numerical simulation and process parameters optimization of backward extrusion for vehicle gear shaft[J]. Die and Mould Technology, 2018, (2):1-7,36.

[4] 龙玲,张健,董洁,等.基于随机聚焦搜索算法的汽车后围内板冲压工艺优化设计[J].锻压技术,2018,43(5):148-153.

Long L, Zhang J, Dong J, et al. Optimization of stamping process design for automobile body lower back panel based on stochastic focusing search algorithm[J]. Forging & Stamping Technology, 2018,43(5):148-153.

[5] 王贺,黄霞,孙莹,等. 铝型材拉弯成形工艺稳健性优化[J].塑性工程学报,2018,25(3):65-72.

Wang H, Huang X, Sun Y, et al. Study on process robust optimization for stretch bending of aluminum profile[J].Journal of Plasticlty Engineering, 2018,25(3):65-72.

[6] 刘晓专，朱亮. 半截式行李箱外板波纹缺陷分析及工艺优化[J]. 锻压技术，2017，42（11）：50-54.

Liu X Z，Zhu L. Ripple defect analysis and process optimization on half-cut trunk [J]. Forging & Stamping Technology，2017，42（11）：50-54.

[7]李彦奎，吕彦明，倪明明. 航空叶片精锻模具优化设计[J]. 锻压技术，2017，42（7）：126-131.

Li Y K，Lyu Y M，Ni M M. Optimum design on precision forging die for aviation blade[J]. Forging & Stamping Technology，2017，42（7）：126-131.

[8]吕炎.锻模设计手册[M]. 北京:机械工业出版社，2006.

Lyu Y. Manual of Forging Die Design[M].Beijing: China Machine Press,2006.

[9]刘建生,陈慧琴,郭晓霞.金属塑性加工有限元模拟技术与应用[M]. 北京:冶金工业出版社,2003

Liu J S, Chen H Q, Guo X X. Technology and Application for Metal Plastic Forming Finite Element Simulation[M].Beijing:Metallurgical Industry Press,2003.

[10]Cockcroft M G, Latham D J. Ductility and the workability of metals [J]. Journal of the Institute of Metals,1986, 96: 33-39.

[11]洪慎章.实用冷挤压模具结构图册[M]. 北京:化学工业出版社.

Hong S Z. The Practical Structure Atlas of Cold Extrusion Die [M]. Beijing: Chemical Industry Press,2008.

服务与反馈：

【文章下载】【加入收藏】