Affiliation:
1. University of Rostock
2. Dresden University of Technology
Abstract
The conventional clinching of steels is currently limited to tensile strength less than 800 N/mm2 and to elongation at fracture more than 14 %. To realise the clinching of high-strength steels, the sheet can be heated locally at the joint, to improve ductility. Thereby the material characteristics outside the joint should be maintained. This could be achieved by means of short-time laser heating. The short-time tempering behaviour of press hardened steel 22MnB5 has been analysed. The mechanical properties during a short-time heat treatment were investigated by thermo-mechanical analysis in a deformation dilatometer. Thereby laser-assisted clinching shall be established and an efficient form-closed and force-closed connection shall be produced. As a result, the press hardened steel 22MnB5 could be clinched by laser assistance for the very first time.
Publisher
Trans Tech Publications, Ltd.
Reference13 articles.
1. Lenze, F. J., Heller, T., and Sikora, S., Herstellung von Karosseriebauteilen aus warmumgeformten Stahlwerkstoffen, in EFB-Kolloquium, (2005).
2. DVS, Taschenbuch DVS-Merkblätter und –Richtlinien Mechanisches Fügen. Düsseldorf: Deutscher Verband für Schweißen, (2009).
3. Karbasian, H. and Tekkaya, A. E., A review on hot stamping, Journal of Materials Processing Technology, vol. 210pp. 2103–2118, 2010. DOI: 10. 1016/j. jmatprotec. 2010. 07. 019.
4. Abe, Y., Mori, K., and Kato, T., Joining of high strength steel and aluminium alloy sheets by mechanical clinching with dies for control of metal flow, Journal of Materials Processing Technology, vol. 212pp. 884– 889, 2012. DOI: 10. 1016/j. jmatprotec. 2011. 11. 015.
5. Kato, T., Abe, Y., and Mori, K., Plastic joining of dissimilar material of high tensile strength steel and aluminium alloy sheets, Welding International, vol. 22(9), p.575–581, 2008. DOI: 10. 1080/09507110802410361.
Cited by
22 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献