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Proceedings Paper

Acoustic Emission And Its Application To Laser Spot Welding
Author(s): Christoph Hamann; Hans-Georg Rosen; Bernd LaBiger
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Paper Abstract

A simple method for noncontact measuring acoustic emission generated during laser welding of steel X5CrNi18 9 and pure aluminium is presented. Laser beam quality is kept constant to insure that AE signal is just affected by the weld process. It will be shown that measuring in noncontact manner depends on formation of plasma, otherwise AE is generated due to backscattered laser radiation, which heat the fixture of the AE sensor.

Paper Details

Date Published: 26 October 1989
PDF: 7 pages
Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989);
Show Author Affiliations
Christoph Hamann, Siemens AG (Germany)
Hans-Georg Rosen, Siemens AG (Germany)
Bernd LaBiger, Siemens AG (Germany)

Published in SPIE Proceedings Vol. 1132:
High Power Lasers and Laser Machining Technology
Michel Gaillard; A. Quenzer, Editor(s)

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