EFFECT OF PLANAR ANISOTROPY ON THE PROPERTIES OF WORKPIECES FROM TAILOR WELDED BLANKS OF DUAL-PHASE STEEL

1 BRUSILOVÁ Alena
Co-authors:
1 SCHREK Alexander 1 POKUSOVÁ Marcela
Institution:
1 Slovak University of Technology in Bratislava, Bratislava, Slovak Republic, EU, alena.brusilova@stuba.sk
Conference:
29th International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 20 - 22, 2020
Proceedings:
Proceedings 29th International Conference on Metallurgy and Materials
Pages:
375-380
ISBN:
978-80-87294-97-0
ISSN:
2694-9296
Published:
27th July 2020
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
70 views / 34 downloads
Abstract

The combination of different mechanical properties of tailor welded blanks (TWB-s) results in non-constant plastic flow and instability of the weld interface during forming. This is most marked when combining metal sheets of different thicknesses or sheets with significantly different plastic characteristics. This non-uniformity was also observed for tailor welded blanks which consisted of equally thick sheets of one material but had different texture orientations after rolling. When examining the formability of such welded blanks, simulations were performed and verified by real experiments of deep drawing of a rectangular box. Since the influence of the differently oriented texture was not very significant, it was necessary to assess the influence of the ductile characteristics of the weld metal on the overall formability. Since the influence of the differently oriented texture was not very significant, it was necessary to assess the influence of the stress-strain characteristics of the weld metal on the overall formability.

Keywords: Anisotropy, deep-drawing, tailor-welded blank, weld interface, simulation

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