Residual stresses in laser welded aluminium plate by use of ultrasonic and optical methods

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • M. Ya
  • P. Marquette
  • F. Belahcene
  • J. Lu

Detail(s)

Original languageEnglish
Pages (from-to)257-264
Journal / PublicationMaterials Science and Engineering A
Volume382
Issue number1-2
Publication statusPublished - 25 Sept 2004
Externally publishedYes

Abstract

With the wide application of aluminium alloys to the automotive, aerospace and other industries, laser welding has become a critical joining technique for aluminium alloys. In this paper, two techniques have been used to measure the non-uniform residual stresses in laser-welded aluminium alloys, i.e. the Lcr ultrasonic technique and the moiré interferometry incremental hole-drilling (MIIHD) method. The non-uniform residual stress distribution in the transverse direction in a laser welded sample was obtained using the Lcr ultrasonic method. The non-uniform in-depth and in-plane residual stresses in the weld center and heat-affected zone were measured using MIIHD. The experimental results showed that these two methods are effective for non-uniform residual stresses problems such as welding. © 2004 Elsevier B.V. All rights reserved.

Research Area(s)

  • Hole-drilling, Laser welding, Moiré interferometry, Residual stress measurement, Ultrasonic method

Citation Format(s)

Residual stresses in laser welded aluminium plate by use of ultrasonic and optical methods. / Ya, M.; Marquette, P.; Belahcene, F. et al.
In: Materials Science and Engineering A, Vol. 382, No. 1-2, 25.09.2004, p. 257-264.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review