Advanced High Strength Steel in Auto Industry: an Overview
Abstract
The world’s most common alloy, steel, is the material of choice when it comes to making products as diverse as oil rigs to cars and planes to skyscrapers, simply because of its functionality, adaptability, machine-ability and strength. Newly developed grades of Advanced High Strength Steel (AHSS) significantly outperform competing materials for current and future automotive applications. This is a direct result of steel’s performance flexibility, as well as of its many benefits including low cost, weight reduction capability, safety attributes, reduced greenhouse gas emissions and superior recyclability. To improve crash worthiness and fuel economy, the automotive industry is, increasingly, using AHSS. Today, and in the future, automotive manufacturers must reduce the overall weight of their cars. The most cost-efficient way to do this is with AHSS. However, there are several parameters that decide which of the AHSS types to be used; the most important parameters are derived from the geometrical form of the component and the selection of forming and blanking methods. This paper describes the different types of AHSS, highlights their advantages for use in auto metal stampings, and discusses about the new challenges faced by stampers, particularly those serving the automotive industry.
Keywords:
advanced high strength steel, automotive industry, auto metal stampings, AHSSDownloads
References
DOCOL, “DOCOL’s advanced high strength steels for the automotive industry”, DOCOL-SSAB Automotive Brochure, 2012
UDDEHOLM-SSAB, “Tooling solutions for advanced high strength steels–selection guidelines”, SSAB Swedish Steel Brochure, 2013
WorldAutoSteels, Evolving AHSS Types,http://www.worldautosteel.org /steel-basics/steel-types/evolving-ahss-types/
M. S. Billur, T. Altan, “Challenges in forming advanced high strength steels”, Proceedings of New Developments in Sheet Metal Forming, pp. 285-304, 2012
K. S. Choi, W. N. Liu, M. A. Khaleel, “Influence of manufacturing processes and microstructures on the performance and manufacturability of advanced high strength steels”, Journal of Engineering Materials and Technology, Vol. 131, No. 4, pp. 041205-041213, 2009 DOI: https://doi.org/10.1115/1.3183778
J. Dykeman, D. Hoydick, T. Link, H. Mitsuji, "Material property and formability characterization of various types of high strength dual phase steel", SAE Technical Paper 2009-01-0794, 2009 DOI: https://doi.org/10.4271/2009-01-0794
H. Kim, H. Palaniswamy, T. Altan, “Investigation of tribological conditions in forming uncoated and galvanized advanced/ultra high strength steels”, CPF, 2, 3/06/01, 2006
N. Bay, A. Azushima, P. Groche, I. Ishibashi, M. Merklein, M. Morishita, T. Nakamura, S. Scmid, M. Yoshida, “Environmentally benign tribo-systems for metal forming”, CIRP Annals-Manufacturing Technology, Vol. 59, No. 2, pp. 760-780, 2010 DOI: https://doi.org/10.1016/j.cirp.2010.05.007
C. Wang, J. Chen, Z. C. Xia, F. Ren, “Die wear prediction by defining three-stage coefficient K for AHSS sheet metal forming process”, The International Journal of Advanced Manufacturing Technology, Vol. 69, No. 1-4, pp. 797-803, 2013 DOI: https://doi.org/10.1007/s00170-013-5069-8
H. Kim, T. Altan, Q. Yan, “Evaluation of stamping lubricants in forming advanced high strength steels (AHSS) using deep drawing and ironing tests”, Journal of Materials Processing Technology , Vol. 209, No. 8, pp. 4122–4133, 2009 DOI: https://doi.org/10.1016/j.jmatprotec.2008.10.007
T. Altan, E. Tekkaya, Sheet Metal Forming: Fundamentals, Volume I, ASM International, 2012 DOI: https://doi.org/10.31399/asm.tb.smff.9781627083164
IRMCO, “Lubricant is lubricant”, IRMCO brochure 2012 http://www.irmco.com/lib/Media/irmco_2012_brochure.pdf
L. Kren, “Hurdles to Stamping Giga Pascal Strength Steels AHSS, Metalform”, 2011 http://www.metalformingfacts.com/hurdles-stamping-gigapascal-strength-steels.html
H. Kim, Advanced High Strength Steels (AHSS): Evaluation of lubricants, tool materials and coatings for reducing galling, LAP Lambert Academic Publishing, 2009
STEELWORKS, “Steel is the Solution to Achieve 54.5 MPG by 2025”, http://www.steel.org/en/Autosteel_org/Web%20Root/Research/Growth%20of%20AHSS.aspx
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