Effect of Welding Speed on CO2 Laser Beam Welded Aluminum-Magnesium Alloy 5083 in H321 Condition

K. Subbaiah; Geetha Manivasagam; B. Shanmugarajan; S.R. Koteswara Rao

doi:10.4028/www.scientific.net/AMR.685.259

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 685Effect of Welding Speed on CO2 Laser Beam Welded...

Effect of Welding Speed on CO₂ Laser Beam Welded Aluminum-Magnesium Alloy 5083 in H321 Condition

Abstract:

Laser beam welding of aluminum alloys is expected to offer good mechanical properties of welded joints. In this experimental work reported, CO₂ laser beam welding at 3.5 kW incident power was conducted autogenously on 5 mm thick 5083-H321 aluminum alloy plates at different welding speeds. The mechanical properties and microstructural characteristics of the welds are evaluated through tensile tests, micro-hardness tests, optical microscopy and scanning electron microscopy (SEM). Both yield stress and tensile strength of the laser beam welded joint at the optimum welding speed were 88 % of base metal values. Experimental results indicate that the tensile strength and hardness of laser beam welds are affected by the variation of the intermetallic compounds.

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Periodical:

Advanced Materials Research (Volume 685)

Pages:

259-263

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.685.259

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Online since:

April 2013

Authors:

K. Subbaiah, Geetha Manivasagam, B. Shanmugarajan, S.R. Koteswara Rao

Keywords:

Aluminium Alloy, Intermetallic Compound, Joint Performance, Laser Beam Welding, Welding Speed

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