吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (6): 1716-1722.doi: 10.13229/j.cnki.jdxbgxb201406028

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Strength and hardness prediction based on cooling rate for hot forming high strength steel

YING Liang1, 2, DAI Ming-hua1, 2, HU Ping1, 2, FAN Zheng-shuai2, SHEN Guo-zhe2, SHI Dong-yong3   

  1. 1.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;
    2.School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China;
    3.Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
  • Received:2013-07-22 Online:2014-11-01 Published:2014-11-01

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Abstract: This paper investigates the effect of partitioned cooling on the mechanical strength and hardness of hot forming steel based on the flat tool cooling test. An exponential model of the mechanical strength-hardness-cooling rate was established using the dimensional analysis method, and this model was validated to be effective. By writing the user subroutine, this model was introduced into the prediction program in the self-developed software KMAS_HF platform to validate the hardness and strength prediction of U-shape hot forming product. Results show that the model is reliable and applicable in predicting the mechanical properties of hot forming products, which can be used to guide the optimization of hot forming process and the design of hot forming tools.

Key words: metal material, divided stage cooling, strength-hardness exponential model, dimension inverse method, numerical prediction

CLC Number: 

  • TG376.2
[1] Karbasian H, Tekkaya A E. A review on hot stamping[J]. Journal of Materials Processing Technology, 2010,210(15):2103-2118.
[2] 朱敏,姬琳,叶辉. 考虑侧碰的汽车B柱加强板材料性能梯度优化[J]. 吉林大学学报:工学版,2011,41(5):1210-1215. Zhu Min, Ji Lin,Ye Hui. Optimization of yield stress distribution on in B pillar reinforcement panel regarding side crash worthines[J]. Journal of Jilin University (Engineering and Technology Edition), 2011,41(5): 1210-1215.
[3] Naderi M, Ketabchi M, Abbasi M, et al. Semi-hot stamping as an improved process of hot stamping[J]. Journal of Materials Science & Technology,2011,27(4):369-376.
[4] Mun D J, Shin E J, Choi Y W, et al. Effects of cooling rate, austenitizing temperature and austenite deformation on the transformation behavior of high-strength boron steel[J]. Materials Science and Engineering A,2012,545: 214-224.
[5] Cui Jun-jia, Lei Cheng-xi, Xing Zhong-wen, et al. Microstructure distribution and mechanical properties prediction of boron alloy during hot forming using FE simulation[J] Materials Science and Engineering A, 2012,535:241-251.
[6] Li M V, Niebuhr D V, Meekisho L L, et al. A computational model for the prediction of steel hardenability[J]. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science,1998,29(3):661-672.
[7] Bok H H, Lee M G, Pavlina E J, et al. Comparative study of the prediction of microstructure and mechanical properties for a hot-stamped B-pillar reinforcing part[J]. International Journal of Mechanical Sciences, 2011,53(9):744-752.
[8] Bardelcik A, Salisbury C P, Winkler S,et al. Effect of cooling rate on the high strain rate properties of boron steel[J]. International Journal of Impact Engineering, 2010,37(6):694-702.
[9] Nishibata T, Kojima N. Effect of quenching rate on hardness and microstructure of hot-stamped steel[J]. Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan,2010,96(6):378-385.
[10] Naderi M, Saeed-Akbari A, Bleck W. The effects of non-isothermal deformation on martensitic transformation in 22MnB5 steel[J]. Materials Science and Engineering A,2008,487(1-2):445-455.
[11] 谈庆明. 量纲分析[M]. 合肥:中国科学技术大学出版社,2005.
[12] Bhaskar R, Nigam A. Qualitative physics using dimensional analysis[J]. Artificial Intelligence, 1990, 45(1-2):73-111.
[13] 马增胜. 纳米压痕法表征金属薄膜材料的力学性能[D]. 湘潭:湘潭大学材料与光电物理学院,2011. Ma Zeng-sheng. Characterization of the mechanical properties of metallic films by nanoindentation method[D]. Xiangtan: Faculty of Materials,Optoelectronics and Physics, Xiangtan University, 2011.
[14] Hora P, Roll K, Volk W,et al. Nunmisheet 2008[DB/OL].[2013-02-05]. http://wenku.baidu.com/link?url=SbLuE5QWYXt6ggJXIRGT-XIGY3y1XlZCwS0VpxFt_KIVLrTFTRQ2knmpZwcf79Tm_lyOsShgfzJRCs4VFhZKQRbhbn-2-p0TdnP44AqS2kC.
[15] Turetta A, Bruschi S, Ghiotti A. Investigation of 22MnB5 formability in hot stamping operations[J]. Journal of Materials Processing Technology,2006,177(1-3): 396-400.
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