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Proceedings Paper

Kurtosis as a tool parameter for laser welding
Author(s): Marcus Scholl; Gerd Herziger
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Paper Abstract

The Kurtosis is introduced as a new tool parameter to characterize the laser beam with respect to the requirements of materials processing with lasers. Especially laser welding shows that the conventional laser parameters beam radius and beam quality are not sufficient to describe the processing result appropriately. The possibility to adjust the Kurtosis as a tool parameter independent of beam radius and beam quality is demonstrated and the design of appropriate optical systems for adjustment is discussed. Experimental investigations and diagnostic measurements for CO2-laser beams as well as the results of welding experiments performed with various differently adjusted Kurtosis curves along the beam divergence confirms the discussion. Especially the influence on the welding seam geometry and the welding depth are discussed in detail.

Paper Details

Date Published: 17 April 1995
PDF: 12 pages
Proc. SPIE 2375, Beam Control, Diagnostics, Standards, and Propagation, (17 April 1995); doi: 10.1117/12.206977
Show Author Affiliations
Marcus Scholl, RWTH Aachen (Germany)
Gerd Herziger, RWTH Aachen (Germany)

Published in SPIE Proceedings Vol. 2375:
Beam Control, Diagnostics, Standards, and Propagation
Lindsay W. Austin; Adolf Giesen; Daniel H. Leslie, Editor(s)

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