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Article

Effect of Cold Rolling on the Mechanical Properties and Formability of FSWed Sheets in AA5754-H114

1
Dipartimento di Meccanica Management Matematica (DMMM), Politecnico di Bari, Viale Japigia 182, 70126 Bari, Italy
2
Dipartimento di Ingegneria Industriale e Scienze Matematiche (DIISM), Università Politecnica delle Marche, Via Brecce Bianche, 60100 Ancona, Italy
3
Università degli Studi eCampus, Via Isimabrdi 10, 22060 Novedrate, Italy
*
Author to whom correspondence should be addressed.
Metals 2018, 8(4), 223; https://doi.org/10.3390/met8040223
Received: 27 February 2018 / Revised: 23 March 2018 / Accepted: 25 March 2018 / Published: 28 March 2018
The effect of cold rolling, performed after friction stir welding (FSW), on the mechanical properties and formability of joints in AA5754-H114 aluminium alloy was investigated. Friction stir welding was carried out on 2.5 mm thick sheets with constant values of rotational and welding speeds of 1200 rpm and 100 mm/min, respectively. Then, FSWed workpieces were cold rolled, with the rolling direction perpendicular to the welding line, in order to obtain height reductions ranging from 0.1 to 0.5 mm. Cold rolling with the same height reductions was also carried out on the base material in the as-received condition. The mechanical properties and formability of both friction stir welded joints and base material, before and after cold rolling, were evaluated by means of the uniaxial tensile and hemispherical punch tests. The nominal stress vs. nominal strain and punch force vs. punch stroke curves were analysed in detail. Finally, the scanning electron microscope fractography was used to evaluate the fractured surface of tensile samples. View Full-Text
Keywords: friction stir welding; cold rolling; mechanical properties; formability; scanning electron microscopy analysis friction stir welding; cold rolling; mechanical properties; formability; scanning electron microscopy analysis
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MDPI and ACS Style

Casalino, G.; El Mehtedi, M.; Forcellese, A.; Simoncini, M. Effect of Cold Rolling on the Mechanical Properties and Formability of FSWed Sheets in AA5754-H114. Metals 2018, 8, 223. https://doi.org/10.3390/met8040223

AMA Style

Casalino G, El Mehtedi M, Forcellese A, Simoncini M. Effect of Cold Rolling on the Mechanical Properties and Formability of FSWed Sheets in AA5754-H114. Metals. 2018; 8(4):223. https://doi.org/10.3390/met8040223

Chicago/Turabian Style

Casalino, Giuseppe, Mohamad El Mehtedi, Archimede Forcellese, and Michela Simoncini. 2018. "Effect of Cold Rolling on the Mechanical Properties and Formability of FSWed Sheets in AA5754-H114" Metals 8, no. 4: 223. https://doi.org/10.3390/met8040223

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