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Effect of Process Parameters and Heat Input on Weld Bead Geometry of Laser Welded Titanium Ti-6Al-4V Alloy

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Abstract:

Laser beam welding is one of the most favorable welding technique and its importance in industry is demanding due to higher welding speeds and lower dimensions and distortions in the welds. Moreover, its high strength to weld geometries and minimal heat affected zones makes favorable for various industrial applications. In the present study, laser welding of titanium alloy was investigated to observe the effects of parameters on the bead geometry and metallurgical properties. The laser power and welding speeds were varied to identify their impact on the formation of weld geometry. The width and depth of the fusion zone is varied with welding conditions. The finer grains identified in weld zone and the width of heat affected zone was significantly changes with laser welding power. The mechanical properties of the weld joint are controlled by obtaining optimum weld bead geometry and width of the head affected zone in the welds.

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Periodical:

Materials Science Forum (Volume 969)

Pages:

613-618

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.969.613

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Online since:

August 2019

Authors:

Muralimohan Cheepu*, D. Venkateswarlu, P. Nageswara Rao, S. Senthil Kumaran, Narayanan Srinivasan

Keywords:

Fusion Zone, Heat Input, Laser Welding, Mechanical Properties, Microhardness, Microstructure, Titanium Alloy, Weld Bead Geometry

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