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Proceedings Paper

Optical local strain testing of laser-joined sheet steels
Author(s): Heinz Haferkamp; Friedrich W. Bach; Ingo Burmester; Matthias Hoefemann
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Paper Abstract

In order to investigate the progression of tensile strength at the joints of laser beam welded sheet metal, the results of an optical measurement procedure applied during a tension test are being utilized. With the aid of a video camera and an interactive interpretation of the diagrams, the tensile strength of the samples equipped with a measuring grid may be observed during the tension test. This measuring device allows for the investigation of its viscoelasticity and eliminates the local tensile strength in the area of the joint including the heat affected zone. It is our intention to identify the properties of the sheet metal joints, which may serve as an aid for optimizing future production processes and characteristic features.

Paper Details

Date Published: 27 March 1997
PDF: 9 pages
Proc. SPIE 2993, Lasers as Tools for Manufacturing II, (27 March 1997); doi: 10.1117/12.270023
Show Author Affiliations
Heinz Haferkamp, Laser Zentrum Hannover eV (Germany)
Friedrich W. Bach, Univ. Hannover (Germany)
Ingo Burmester, Laser Zentrum Hannover eV (Germany)
Matthias Hoefemann, Univ. Hannover (Germany)

Published in SPIE Proceedings Vol. 2993:
Lasers as Tools for Manufacturing II
Leonard R. Migliore; Ronald D. Schaeffer, Editor(s)

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