Laser welding of hot stamping blanks

ABSTRACT: The article presents technological tests of laser welding of flat blanks of the same thickness, made of two types of hot-stamping steel. Special equipment for welding blanks was shown. Tests of laser welding of 2 mm thick blanks of two types of Usibor 1500 and Usibor 2000 steel with different parameters were carried out. Smooth tensile specimen were cut out of the welded blanks. The obtained microstructure and hardness tests were performed. The research results were discussed.

KEYWORDS: hot stamping, 22MnB5, 37MnB5, Usibor 1500, Usibor 2000, laser welding, hardening

STRESZCZENIE: W artykule opisano próby technologiczne laserowego spawania płaskich formatek o tej samej grubości, wykonanych z dwóch rodzajów stali do tłoczenia na gorąco. Pokazano oprzyrządowanie do spawania formatek. Przeprowadzono testy laserowego spawania formatek o grubości 2 mm z dwóch rodzajów stali – Usibor 1500 i Usibor 2000, przy różnych parametrach procesu. Z zespawanych formatek wycięto próbki wiosełkowe do badań wytrzymałościowych. Wykonano badania uzyskanej mikrostruktury oraz twardości. Omówiono wyniki badań.

SŁOWA KLUCZOWE: tłoczenie na gorąco, 22MnB5, 37MnB5, Usibor 1500, Usibor 2000, spawanie laserowe, hartowanie

BIBLIOGRAFIA / BIBLIOGRAPHY:

[1] World Commission on Environment and Development. “Report of the World Commission on Environment and Development: Our Common Future”. (1987), https://sustainabledevelopment.un.org/content/documents/5987our-common-future.pdf.

[2] Directive (EU) 2019/1161 of the European Parliament and of the Council of 20 June 2019 amending Directive 2009/33/EC on the promotion of clean and energy-efficient road transport vehicles (PE/57/2019/REV/2), http://data.europa.eu/eli/dir/2019/1161/oj.

[3] Miyanishi M. “Manufacturing of Light Weight Cars”. Proceedings of the 13th International Conference on Metal Forming. (19–22 September 2010), Toyohashi, Japan.

[4] Palmieri M.E., Galetta F.R., Tricarico L. “Study of Tailored Hot Stamping Process on Advanced High-Strength Steels”. J. Manuf. Mater. Process. 6, 11 (2022), https://doi.org/10.3390/jmmp6010011.

[5] Karbasian H., Tekkaya A. “A review on hot stamping”. J. Mater. Process. Technol. 210 (2010): 2103–2118, https://doi.org/10.1016/j.jmatprotec.2010.07.019.

[6] Turetta A., Bruschi S., Ghiotti A. “Investigation of 22MnB5 formability in hot stamping operations”. Journal of Materials Processing Technology. 177 (2006): 396–400.

[7] Horvath C.D. “Advanced steels for lightweight automotive structures”. “Materials, Design and Manufacturing for Lightweight Vehicles”. Editor 1, P.K. Mallick, Woodhead Publishing (2010): 35–78.

[8] Neugebauer R., Schieck F., Polster S., Mosel A., Rautenstrauch A. “Press hardening – An innovative and challenging technology”. Arch. Civ. Mech. Eng. 12 (2012): 113–118.

[9] Samadian P., O’Keeffe C., Butcher C., Worswick M.J. “Fracture Response in Hot-Stamped Tailor-Welded Blanks of Ductibor® 500-AS and Usibor® 1500-AS: Experiments and Modelling”. Engineering Fracture Mechanics (2021), https://doi.org/10.1016/j.engfracmech.2021.107864.

[10] Shi D., Watanabe K., Naito J., Funada K., Yasui K. “Design optimization and application of hot-stamped B pillar with local patchwork blanks”. Thin-Walled Structures. 170 (2022), https://doi.org/10.1016/j.tws.2021.108523.

DOI: https://doi.org/10.17814/mechanik.2023.4.9

 

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