Table of Contents
Advances in Optical Technologies
Volume 2011, Article ID 321807, 4 pages
Research Article

A Diode-Laser-System for Laser-Assisted Bending of Brittle Materials

1Institute of Production Engineering and Laser Technology, Vienna University of Technology, Gusshausstr 30, A-1040 Vienna, Austria
2Oberösterreichisches Laserzentrum, Gaswerkgasse 4, A-4810 Gmunden, Austria

Received 15 February 2011; Accepted 20 May 2011

Academic Editor: José Luis Ocaña-Moreno

Copyright © 2011 F. Bammer et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We developed a small and compact system of diode lasers, which can be inserted into the lower tools of a bending press. The parts of the system allow easy plug and play operation and can be installed for any bending length. The diode laser, which is based on 200 W laser bars on microchannel cooler, allows the heating of sheet metals in the forming zone shortly before and during the bending process. There is no unnecessary heating of other parts of the bending equipment, no wear of the tool, and, if properly done, no damage of the surface of the metal. The power per bending length is 16 kW/m.