Microstructures and Mechanical Butt Weld Properties in Dissimilar AA5754-AA3003 Gas Welding

Necat ALTINKÖK, Mehmet Emin ASAN

Abstract


In this study, the effect of double pulsed Metal Inter Gas (MIG) – Gas Tungsten Arc Welding (TIG) on metal droplet transfer, weld pool profile, weld bead geometry and mechanical properties of weld joint of Al alloys are presented. Plates of AA5754-AA3003 aluminum alloys were dissimilar welded by ER5356 welding wire. Full penetration joints without any defects were produced. The influences of arc welding parameters on welding speed and weld appearance were studied through macrostructure and microstructure characterization of fusion zone of an AA5754-AA3003 weld joint. The tensile properties and micro-hardness values of welded specimens were measured.

Keywords


Dissimilar MI-TIG welding, Macrostructure and microstructure, Mechanical properties

Publication Date


2016-11-17 00:00:00


DOI
10.12783/dtcse/cmsam2016/3575

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