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

Comparative Study on Mechanical and Metallurgical Properties of AA6061 Aluminum Alloy Sheet Weld by Pulsed Current and Dual Pulse Gas Metal Arc Welding Processes

A. Mathivanan Department of Mechanical Engineering, SRM University, Chennai, India
,
K. Devakumaran Welding Research Institute, BHEL, Tiruchi, IndiaCorrespondence[email protected]
&
A. Senthil Kumar SMBS, VIT University, Vellore, India
Pages 941-947 | Received 10 Nov 2013, Accepted 28 Mar 2014, Published online: 18 Jul 2014
 
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Abstract

The present investigation is aimed to carry out a comparison between DP-GMAW and P-GMAW processes on mechanical and metallurgical properties of 2.0 mm thin AA6061 aluminum alloy sheet. The use of DP-GMAW has been found superior to the use of P-GMAW with respect to significant improvement in mechanical and metallurgical properties. The advantage of the weld characteristics with dual pulse in GMAW process is primarily due to the combined effect of pulsed current and thermal pulsation.

Notes

AA6061–T6 alloy contains magnesium and silicon as its major alloying elements and due to the precipitation of Mg2Si phase it attains superior mechanical properties.

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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