Acoustic Emission And Its Application To Laser Spot Welding

Christoph Hamann; Hans-Georg Rosen; Bernd LaBiger

doi:10.1117/12.961590

26 October 1989 Acoustic Emission And Its Application To Laser Spot Welding

Christoph Hamann, Hans-Georg Rosen, Bernd LaBiger

Proceedings Volume 1132, High Power Lasers and Laser Machining Technology; (1989) https://doi.org/10.1117/12.961590
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

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.

Citation Download Citation

Christoph Hamann, Hans-Georg Rosen, and Bernd LaBiger "Acoustic Emission And Its Application To Laser Spot Welding", Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989); https://doi.org/10.1117/12.961590

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