Experimental Research on the Behaviour of Metal Active Gas Tailor Welded Blanks during Single Point Incremental Forming Process

Autor: Valentin Oleksik, Dan Dobrota, Sever-Gabriel Racz, Gabriela Petruta Rusu, Mihai Octavian Popp, Eugen Avrigean
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Metals, Vol 11, Iss 2, p 198 (2021)
Druh dokumentu: article
ISSN: 2075-4701
DOI: 10.3390/met11020198
Popis: The present paper aims to study the behaviour of Metal Active Gas (MAG) tailor welded blanks during the single point incremental forming process (SPIF) from an experimental point of view. The single point incremental forming process was chosen for manufacturing truncated cone and truncated pyramid shaped parts. The same material (S355) and the same thickness (0.9 mm) were selected for the joining of blank sheets because the main goal of the paper was to study the influence of the MAG welding process throughout the SPIF process. A Kuka robot, equipped with a force transducer and an optical measurement system were used for manufacturing and evaluating the parts by SPIF. The selected output data were major and minor strain, thickness reduction, forces and springback at the SPIF process. Another line test was performed to evaluate the formability in SPIF. The main conclusion of the paper is that during the SPIF process, fractures occur in one side welded blanks even at moderate wall angles, while in the case of double side welded blanks there is a decrease of formability but parts can still be produced at moderate angles (55 degrees) without any problems.
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