锻压技术

第二代先进高强钢TWIP钢在车身典型零件上的应用

英文标题：Application of the second generation AHSS of TWIP steel for typical automobile parts

作者：李久茂陈新平牛超

分类号：TG386; TB115

出版年,卷(期):页码：2017,42(9):46-50

摘要：

开发兼具高强度和优良伸长率的高强度钢板，对车身轻量化和提高汽车安全性具有重要意义。深入解析了HC450/950TW钢微观组织、力学性能、成形特性，并通过有限元仿真分析和冲压试验研究了HC450/950TW减震器支座成形性。结果表明：TWIP钢的成形性能大幅优于同级别的QP钢和DP钢，HC450/950TW伸长率大于50%，n值超过0.48。减震器支座应用HC450/950TW成形后，拉延成形深度达到150 mm，零件无开裂、起皱缺陷，成形性良好，并可实现减重2.4 kg，轻量化效果显著。TWIP钢适用于对拉延和胀性要求很高的车身结构零件。

Developing the high strength steel sheet with high strength and good elongation is of great significance for lightweight and safety improvement of auto. The microstructure, mechanical properties and forming characteristics of HC450/950TW were experimentally studied, and the formability of shock absorber support of HC450/950TW was studied by FEM simulation analysis and stamping test. The results show that the forming performance of TWIP steel is much better than that of QP steel and DP steel at the same strength level. Namely, the elongation of HC450/950TW is more than 50%, and the value of n is more than 0.48. After the shock absorber support being formed by HC450/950TW, the drawing depth of the part achieves 150 mm without cracking and wrinkling, and has a significant lightweight of 2.4 kg. Thus, TWIP steel with high requirements for drawing and expanding is suitable for applying to automobile structure parts.

基金项目：

李久茂（1990-），男，硕士研究生，助理工程师 E-mail：lijiumao@baosteel.com

参考文献：

［1］王利, 陆匠心.汽车轻量化及其材料的经济选用[J].汽车工艺与材料,2013, (1):1-11.

Wang L, Lu J X. The lightweight of automobile and the economic selection of its material[J]. Automobile Technology & Material, 2013, (1):1-11.

［2］蒋浩民,陈新平,石磊,等.先进高强度钢板的冲压成形特性及其应用[J].塑性工程学报, 2009, 16(4):183-186.

Jiang H M, Chen X P, Shi L, et al. Forming characteristics and application of advanced high strength steel[J].Journal of Plasticity Engineering, 2009, 16(4):183-186.

［3］马凤仓, 冯伟骏, 王利,等. TWIP钢的研究现状[J]. 宝钢技术, 2008, (6):62-66.

Ma F C, Feng W J, Wang L, et al. The TWIP steel research work at present[J].Baosteel Technology,2008, (6):62-66.

［4］刘向海,刘薇,刘嘉斌, 等.孪生诱发塑性(TWIP)钢的研究现状[J].材料导报,2010, 24(6):102-105.

Liu X H, Liu W, Liu J B, et al. Current situation of the TWIP steel[J]. Materials Review, 2010, 24(6):102-105.

［5］李大赵,卫英慧,刘春月,等.汽车用TWIP钢的基础研究现状[J].钢铁研究学报, 2009, 21(2):1-5.

Li D Z, Wei Y H, Liu C Y, et al. Fundamental research of TWIP steel for automobile[J].Journal of Iron and Steel Research,2009, 21(2):1-5.

［6］米振莉, 唐荻, 严玲,等. 高强度高塑性TWIP钢的开发研究[J]. 钢铁, 2005, 40(1):58-60.

Mi Z L, Tang D, Yan L, et al. Study of high strength and high plasticity TWIP steel[J]. Iron and Steel, 2005, 40(1):58-60.

［7］兰鹏.杜辰伟,纪元, 等.汽车用高锰TWIP钢的研究现状[J].中国冶金,2014, 24(7):7-15.

Lan P, Du C W, Ji Y, et al. Research status of high manganese TWIP steel for automotive industry[J].China Metallurgy,2014, 24(7):7-15.

［8］黄宝旭,王晓东,戎咏华,等.TWIP钢研究的现状与展望[J].热处理, 2005, 20(4):4-6.

Huang B X, Wang X D, Rong Y H, et al. Current situation and prospect of TWIP steel[J].Heat Treatment,2005, 20(4):4-6.

［9］刁可山,蒋浩民,谢坚强.1000 MPa级DP钢的成形特性试验[J].塑性工程学报,2012, 19(4):95-98.

Diao K S, Jiang H M, Xie J Q. Experimental research on mechanical properties and formability of 1000 MPa DP steel[J].Journal of Plasticity Engineering, 2012, 19(4):95-98.

［10］陈新平, 汪承璞.一种预测左半部成形极限图的简单方法[J].精密成形工程, 2000, 18(4):4-6.

Chen X P, Wang C P. Approach for predicting the limit draw strain of the forming diagram[J]. Journal of Netshape Forming Engineering, 2000, 18(4):4-6.

［11］陈新平,蒋浩民.汽车钢板胀形区成形极限图的预测与验证[J].精密成形工程, 2003, 21(6):86-88.

Chen X P, Jiang H M. The prediction and validation of bulging region of forming limit diagram(FLD) of steel sheet[J].Journal of Netshape Forming Engineering, 2003, 21(6):86-88.

［12］刁可山,曹猛,蒋浩民,等. DP600高强钢零件冲压成形有限元仿真及试验[J].塑性工程学报, 2010, 17(3):66-69.

Diao K S, Cao M, Jiang H M, et al. FEM and experiment analyses of stamping process for AHSS part[J].Journal of Plasticity Engineering, 2010, 17(3):66-69.

［13］牛超,杨兵,高永生,等.低合金高强度钢HC500LA成形性能研究[J].锻压技术, 2015,40(7):23-28.

Niu C, Yang B, Gao Y S, et al. Research on the formability of high-strength low-alloy steels HC500LA[J].Forging & Stamping Technology,2015,40(7):23-28.

［14］GB/T 15825.8—2008,金属薄板成形性能与试验方法第8部分:成形极限图(FLD) 测定指南[S]．

GB/ T 15825.8—2008，Sheet metal formability and test methods—Part 8: Guidelines for the determination of forming limit diagrams[S]．

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】