Modifying mechanical properties of sheet metal materials by work hardening mechanisms induced by selective embossing

Modifying mechanical properties of sheet metal materials by work hardening mechanisms induced by selective embossing


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Abstract. The selective modification of mechanical properties of sheet metal materials poses a promising approach for realizing lightweight designs, especially when achieved without additional material input. One method for locally adapting the mechanical properties of sheet metal components is to specifically induce work hardening into the sheet metal material by near-surface embossing. Previous studies have already shown this effect for the sheet metal materials DP500 and DP600. The present paper verifies these findings for embossed high-strength steel DP800 considering different blank thicknesses and embossing depths. During experimental investigations, tensile and bending specimens of different sheet thicknesses were manufactured with definite embossing patterns and subsequently tested with regard to their mechanical properties. To verify the true embossing depth, the specimens were measured optically. As a result of this contribution, it was found that the material properties of high-strength sheet metal materials can be modified for lightweight construction and crash properties by selective embossing. Parameter constellations for increasing the yield strength were found for the materials investigated.

Embossing, High Strength Steel, Dual-Phase Steel, Tensile Test

Published online 4/19/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: HEINZELMANN Pascal, BRIESENICK David, LIEWALD Mathias, Modifying mechanical properties of sheet metal materials by work hardening mechanisms induced by selective embossing, Materials Research Proceedings, Vol. 28, pp 951-958, 2023


The article was published as article 104 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

[1] K. Shanmugam, V. Gadhamshetty, P. Yadav, D. Athanassiadis, M. Tysklind, V.K. Upadhyayula, Advanced High-Strength Steel and Carbon Fiber Reinforced Polymer Composite Body in White for Passenger Cars: Environmental Performance and Sustainable Return on Investment under Different Propulsion Modes, ACS Sustainable Chem. Eng. 7 (2019) 4951-4963.
[2] R. Döhrn, Die Lage am Stahlmarkt: Produktion steigt wieder, Probleme bleiben, RWI Konjunkturberichte 72 (2021) 49-58
[3] C. Birkholz, M. Kraus, Die Energiekrise im Standortvergleich: Preiseffekte und Importrisiken. Sonderstudie zum Länderindex Familienunternehmen, München: Stiftung Familienunternehmen, Rep. 978-3-948850-15-9, 2022
[4] O. Holtemöller, S. Kooths, T. Schmidt, T. Wollmershäuser, Gemeinschaftsdiagnose: Energiekrise, Inflation, Rezession und Wohlstandsverlust, Wirtschaftsdienst 102 (2022) 761-765.
[5] C.S. Namoco, T. Iizuka, R.C. Sagrado, N. Takakura, K. Yamaguchi, Experimental and numerical investigation of restoration behavior of sheet metals subjected to bulging deformation, J. Mater. Process. Technol. 177 (2006) 368–372.
[6] C.S. Namoco, T. Iizuka, K. Narita, N. Takakura, K. Yamaguchi, Effects of embossing and restoration process on the deep drawability of aluminum alloy sheets, J. Mater. Process. Technol. 187-188 (2007) 202–206.
[7] Y. Abe, K. Mori, T. Maeno, S. Ishihara, Y. Kato, Improvement of sheet metal formability by local work-hardening with punch indentation, Prod. Eng. Res. Devel. 13 (2019) 589-597.
[8] S. Walzer, M. Liewald, Studies on the influence of embossing on the mechanical properties of high-strength sheet metal, AIP Conference Proceedings 2113 (2019) 160006.
[9] D. Briesenick, S. Walzer, M. Liewald, Study on the Effect of Embossing on the Bending Properties of High-Strength Sheet Metals, in: Forming the Future: Proceedings of the 13th International Conference on the Technology of Plasticity (Springer eBook Collection), G. Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, and Y. Yoshida (Eds.), 1st ed. Cham: Springer International Publishing, Imprint Springer, 2021, pp. 2585-2595.
[10] C. Lesch, N. Kwiaton, F.B. Klose, Advanced High Strength Steels (AHSS) for Automotive Applications − Tailored Properties by Smart Microstructural Adjustments, Steel Res. Int. 88 (2017) 1700210.
[11] F. Ebrahimi, N. Saeidi, M. Raeissi, Microstructural Modifications of Dual‐Phase Steels: An Overview of Recent Progress and Challenges, Steel Res. Int. 91 (2020) 2000178.
[12] DIN EN ISO 6892-1:2020-06, Metallische Werkstoffe_- Zugversuch_- Teil_1: Prüfverfahren bei Raumtemperatur (ISO_6892-1:2019); Deutsche Fassung EN_ISO_6892-1:2019, Berlin.