锻压技术

间接热成形中预成形量对零件成形质量的影响

英文标题：Influence of pre-forming amount on forming quality of parts in indirect hot forming

作者：汤梓铭谷诤巍李义李欣于歌

单位：吉林大学

分类号：TG156

出版年,卷(期):页码：2023,48(9):49-55

摘要：

为了更好地掌握间接热成形技术，以22MnB5钢材料为例，结合数值模拟与试验两种手段对盒形零件的间接热成形工艺进行研究。讨论间接热成形中，预成形量对零件成形质量的影响以及预成形量的设计原则。结果表明：间接热成形中，当以冲压行程作为预成形量设计的参考对象时，盒形零件满足随着预成形量的增大，最大减薄率逐渐减小的规律，并且预成形量≥90%时零件的成形性更好，厚度分布更加均匀。对于间接热成形来说，终成形作用更多的是对预成形板料进行整形以及局部特征的成形。此外，不同预成形量不会对零件的力学性能产生很大影响。

In order to better grasp the indirect hot forming technology, for 22MnB5 steel material, the indirect hot forming process of box-shaped parts was studied by combining two methods of numerical simulation and experiment, and the influence of pre-forming amount on the forming quality of parts and the design principles of pre-forming amount were discussed. The results show that in indirect hot forming, when the stamping stroke is used as the designed reference object of the pre-forming amount, the box-shaped parts satisfy the law that the maximum thinning rate gradually decreases with the increasing of the pre-forming amount, and when the pre-forming amount is ≥90%, the part formability is better and the thickness distribution is more uniform. For the indirect hot forming, the role of the final forming is more about shaping and forming local features of pre-formed sheet. In addition, different pre-forming amounts do not have a significant effect on the mechanical properties of part.

基金项目：

吉林省科技厅项资助目(20160204058GX)

作者简介：汤梓铭（1991-），女，博士研究生 E-mail：zimingtang24@163.com 通信作者：谷诤巍（1970-），男，博士，教授 E-mail：guzhengweijlu@163.com

参考文献：

[1]Zhang W, Xu J. Advanced lightweight materials for automobiles: A review[J]. Materials and Design, 2022, 221: 110994.

[2]Wadas T, Tisza M. Lightweight manufacturing of automotive parts[A]. 12th Hungarin Conference on Materials Science (HMSC12) [C]. Balatonkenese, 2020.

[3]李军, 刘鑫, 曹广祥, 等. 汽车车身高强度钢的应用发展及挑战[J]. 汽车工艺与材料, 2021, (8): 1-6.

Li J, Liu X, Cao G X, et al. Application develop and challenge on high strength steel for automobile body[J]. Automobile Technology and Material, 2021, (8): 1-6.

图9不同预成形量下的成形试验件显微组织

（a）90%（b）100%

Fig.9Microstructures of formed test parts under different preforming amounts

图10成形试验件工程应力-工程应变曲线

Fig.10Engineering stressengineering strain curves of formed test parts

[4]Li S S, Luo H W. MediumMn steels for hot forming application in the automotive industry[J]. International Journal of Minerals, Metallurgy and Materials, 2021, 28: 741-753.

[5]Taub A, Moor E D, Luo A, et al. Materials for automotive lightweighting[J]. Annual Review of Materials Research, 2019, 49(1): 327-359.

[6]Wróbel I, Skowronek A, Grajcar A. A review on hot stamping of advanced highstrength steels: Technologicalmetallurgical aspects and numerical simulation [J]. Symmetry, 2022, 14(5): 969.

[7]Senuma T. Hot stamping steel[J]. Encyclopedia of Materials: Metals and Alloys, 2022, 2: 26-36.

[8]马廷涛, 庄厚川, 金科, 等. 高强钢材料车身轻量化研究[J]. 汽车工艺与材料, 2019, (5): 1-5, 11.

Ma T T, Zhuang H C, Jin K, et al. Lightweight research on highstrength steel auto body[J]. Automobile Technology and Material, 2019, (5): 1-5, 11.

[9]张施琦, 冯定, 张跃, 等. 新型超高强度热冲压用钢的热变形行为及本构关系[J]. 材料工程, 2016, 44(5): 15-21.

Zhang S Q, Feng D, Zhang Y, et al. Hot deformation behavior and constitutive model of advanced ultrahigh strength hot stamping steel[J]. Journal of Materials Engineering, 2016, 44(5): 15-21.

[10]Karabasian H, Tekkaya A E. A review on hot stamping[J]. Journal of Materials Processing Technology, 2010, 210(15): 2103-2118.

[11]张海杰, 严建文, 李贵闪. 全自动高强钢间接热成形生产线(上)[J]. 锻造与冲压, 2020, (20): 63-67.

Zhang H J, Yan J W, Li G S. Automatic indirect thermal forming production line for high strength steel(1/2)[J]. Forging & Metalforming, 2020, (20): 63-67.

[12]Billur E. Hot Stamping of Ultra Highstrength Steels (From a Technological and Business Perspective) [M].Swizerland:Cham,2019.

[13]金学军, 龚煜, 韩先洪, 等. 先进热成形汽车钢制造与使用的研究现状与展望[J]. 金属学报, 2020, 56(4): 411-428.

Jin X J, Gong Y, Han X H, et al. A review of current state and prospect of the manufacturing and application of advanced hot stamping automobile steel[J]. Acta Metallurgica Sinica, 2020, 56(4): 411-428.

[14]Phanitwong W, Sriborwornmonkol J, Thipprakmas S. et al. Zoning lubricant die application for improving formability of boxshaped deep drawn parts[J]. Metals, 2021, 11(7): 1015.

[15]Lin J L, Li M Z, Qu E, et al. Research on the process of flexible blankholder in multipoint forming for boxshaped parts[J]. IOP Conference Series: Materials Science and Engineering, 2018, 439: 042024.

[16]雷呈喜. BR1500HS高强钢盒形件热冲压成形性研究[D]. 哈尔滨：哈尔滨工业大学, 2012.

Lei C X. Research on Formability of Squarecup Part for BR1500HS High Strength Steel in Hot Stamping[D]. Harbin：Harbin Institute of Technology, 2012.

[17]Abspoe M, Neelis B M, Van L P. Constitutive behaviour under hot stamping conditions[J]. Journal of Materials Processing Technology, 2016, 228: 34-42.

[18]Merklein M, Lechler J. Investigation of the thermomechanical properties of hot stamping steels[J]. Journal of Materials Processing Technology, 2006, 177(1): 452-455.

[19]郑燕平, 闫盖, 何镇罡. 冲压工艺参数对成形质量的影响分析[J]. 热加工工艺, 2013, 42(23): 146-149.

Zheng Y P, Yan G, He Z G. Impact analysis of stamping process parameters on forming quality[J]. Hot Working Technology, 2013, 42(23): 146-149.

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