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Proceedings Paper

Diode laser welding of polypropylene: investigations of the microstructures in the welded seam
Author(s): S. Abed; Patricia Laurens; C. Carretero; J. R. Deschamps; C. Duval
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Paper Abstract

Laser welding of thermoplastic polymers is a non-contact process especially efficient for joining thermoplastic polymers. This innovative technology is already used for industrial series production in different sectors (automobile, packaging,...). The majority of the basic research concerns the weld strength depending on polymer nature, optical properties, butt design and process parameters. Nevertheless, a lack of knowledge concerning the influence of thermal history of the weld seam on morphology of semicrystalline polymer still exists, when this parameter strongly influences the strength of the weld. Actual results of diode laser transmission welding (LTW) experiments on polypropylene, a semicrystalline polymer widely used in industry, could contribute to a better understanding of the process itself and to success in practical applications.

Paper Details

Date Published: 3 March 2003
PDF: 5 pages
Proc. SPIE 4831, First International Symposium on High-Power Laser Macroprocessing, (3 March 2003); doi: 10.1117/12.497944
Show Author Affiliations
S. Abed, Cooperation Laser Franco-Allemande (France)
Patricia Laurens, Cooperation Laser Franco-Allemande (France)
C. Carretero, Cooperation Laser Franco-Allemande (France)
J. R. Deschamps, CNAM Lab. de Production et Transformation des Plastiques (France)
C. Duval, CNAM Lab. de Production et Transformation des Plastiques (France)

Published in SPIE Proceedings Vol. 4831:
First International Symposium on High-Power Laser Macroprocessing
Isamu Miyamoto; Kojiro F. Kobayashi; Koji Sugioka; Reinhart Poprawe; Henry Helvajian, Editor(s)

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