Investigation on Porosity Content in 2024 Aluminum Alloy Welding by Yb:YAG Disk Laser

Abstract:

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Aluminum alloy 2024 is extensively used in automotive and aerospace industries, but its application is limited due to the susceptibility to generate porosity during the welding process. Nevertheless, benefits from laser welding are clearly demonstrated. In addition, the use of a disk laser allows to obtain significant reduction in focus diameter and increased beam quality compared to traditional rod or slab lasers. The aim of the work is to discuss porosity formation as influenced by the thermal input provided, so bead-on-plate specimens in different conditions have been prepared. Porosity content is examined in relation to the fused zone extent and discussed considering interaction between laser and material. Higher thermal inputs are beneficial in full penetrative welds.

Info:

Periodical:

Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan

Pages:

6265-6269

DOI:

10.4028/www.scientific.net/AMR.383-390.6265

Citation:

V. Alfieri et al., "Investigation on Porosity Content in 2024 Aluminum Alloy Welding by Yb:YAG Disk Laser", Advanced Materials Research, Vols. 383-390, pp. 6265-6269, 2012

Online since:

November 2011

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Price:

$35.00

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