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Proceedings Paper

Technological approaches by laser beam welding of aluminium alloys and influence of errors in manufacturing process
Author(s): Marcel Sabin Popa; Calin Rus; Dan Preja; Raul Moldovan
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Paper Abstract

The explosive development of modern manufacturing technologies, particularly the laser beam manufacturing, has raised new challenges in the field of research. The laser beam welding process may be influenced by errors appearing from different causes. In this paper the authors present the influence of errors during the experiments regarding the laser beam welding of aluminium alloy. In the physical experiment, two major geometric welding characteristics (the welding surface and the welding width) of an aluminium alloy AlMgSi 1 were measured at different welding speeds, using a solid state laser Nd:YAG, HL 4006D. With the aim of obtaining the best results, a CCD-Camera was assembled on the device allowing to capture the most accurate photos from the experiments. The appearance of errors is more likely to be found in the domain of high rate welding speeds than in those of low welding speeds. The data analysis based on the dispersion criterion is useful to characterize the influence of thermal parameters of aluminium alloy upon the laser beam welding surface and width, which may be extended to other new materials with the same characteristics. The present researches started together with the University of Stuttgart will be continued at the Technical University of Cluj-Napoca with a new laser equipment.

Paper Details

Date Published: 14 February 2005
PDF: 6 pages
Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); doi: 10.1117/12.611603
Show Author Affiliations
Marcel Sabin Popa, Technical Univ. of Cluj-Napoca (Romania)
Calin Rus, Technical Univ. of Cluj-Napoca (Romania)
Dan Preja, Technical Univ. of Cluj-Napoca (Romania)
Raul Moldovan, Technical Univ. of Cluj-Napoca (Romania)

Published in SPIE Proceedings Vol. 5776:
Eighth International Symposium on Laser Metrology
R. Rodriguez-Vera; F. Mendoza-Santoyo, Editor(s)

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