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Materials and Manufacturing Processes Volume 29, 2014 - Issue 8
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Original Articles

Optimization of Friction Spot Welding Process Parameters for AA2198-T8 Sheets

G. Pieta Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Materials Mechanics, Solid State Joining Processes (WMP), Geesthacht, Germany; Post-Graduation Program in Mining, Metallurgy and Materials Engineering (PPGE3M), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, BrazilCorrespondence[email protected]
,
J. dos Santos Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Materials Mechanics, Solid State Joining Processes (WMP), Geesthacht, Germany
,
T. R. Strohaecker Post-Graduation Program in Mining, Metallurgy and Materials Engineering (PPGE3M), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
&
T. Clarke Post-Graduation Program in Mining, Metallurgy and Materials Engineering (PPGE3M), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
Pages 934-940 | Received 28 Nov 2012, Accepted 11 May 2013, Published online: 18 Jul 2014
 
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Abstract

The present work is aimed at the optimization of friction spot welding process parameters for 3.2 mm thick 2198-T8 aluminum alloy sheets; this was performed via a Taguchi-based analysis of the effect of process variables, namely rotation speed, welding time, and plunge depth, on the shear strength of the welded joints. In this study, low or intermediate rotation speed levels showed to be better for the process. Longer welding times and deeper plunge depths led to higher joint strength, although the influence of such parameters is found to be limited above certain values. Hardness profiles and fracture analysis were also performed.

Notes

Color versions of one or more of the figures in the article can be found online at www.tandfonline.com/lmmp.

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