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

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)
Chapter
Chapter 24: Laser Based Manufacturing
Edited by
Wu Fan
Pages
6265-6269
DOI
10.4028/www.scientific.net/AMR.383-390.6265
Citation
V. Alfieri, F. Cardaropoli, F. Caiazzo, V. Sergi, "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
$32.00
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