Friction stir welded butt joints optimization

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Silva, ACF (Author) Other; Braga, DFO (Author) Other; Miguel Figueiredo (Author) FEUP; Moreira, PMGP (Author) Other

Journal

Title: Materialwissenschaft und Werkstofftechnik

Vol. 45

Pages: 1010-1017

ISSN: 0933-5137

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 9 Citations

Other information

Authenticus ID: P-00A-10T

DOI: 10.1002/mawe.201400299

Abstract (EN): Friction stir welding is an emergent technique that still lacks optimization studies in the literature. Optimum parameters are of prime importance for future investigations, as it will allow for consistent and sound welds. This is of even greater relevance for industrial applications, as for friction stir welding to become a mainstream joining technology. This paper presents an optimization study of friction stir welded butt joints through the Taguchi method. The most influent welding parameters and their trends were identified. The process optimization for the selected aluminium alloy was achieved and the best parameters combination to accomplished quality welds was selected. The parameters combination that lead to higher mechanical stiffness were: 1000 min(-1), 290 mm/min, 0.15 mm from the probe to the root surface and a shoulder/probe diameters ratio of 2 (shoulder diameter of 12 mm). Equations to estimate joint properties were derived by multiregression.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8