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Optical Engineering • Open Access

Holographic measurement of thermal distortion during laser spot welding
Author(s): Ingemar Eriksson; Peter Haglund; John Powell; Mikael Sjödahl; Alexander F. H. Kaplan

Paper Abstract

Welding distortion is an important engineering topic for simulation and modeling, and there is a need for experimental verification of such models by experimental studies. High-speed pulsed digital holography is proposed as a measurement technique for out-of-plane welding distortion. To demonstrate the capability of this technique, measurements from a laser spot weld are presented. A complete two-dimensional deformation map with submicrometer accuracy was acquired at a rate of 1000 measurements per second. From this map, particular points of interest can be extracted for analysis of the temporal development of the final distortion geometry.

Paper Details

Date Published: 8 March 2012
PDF: 4 pages
Opt. Eng. 51(3) 030501 doi: 10.1117/1.OE.51.3.030501
Published in: Optical Engineering Volume 51, Issue 3
Show Author Affiliations
Ingemar Eriksson, Luleå Univ. of Technology (Sweden)
Peter Haglund, Luleå Univ. of Technology (Sweden)
John Powell, Luleå Univ. of Technology (Sweden)
Mikael Sjödahl, Luleå Univ. of Technology (Sweden)
Alexander F. H. Kaplan, Luleå Univ. of Technology (Sweden)

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