Abstract
In this paper, some research and develop-ment activities within
pulsed laser welding technology at the Tech-nical University of
Denmark will be described. The laser group at the Insti-tute for
Manufacturing Technology has nearly 20 years of experience in
laser materials process-ing. Inter-nationally the group is mostly
known for its contri-butions to the development of the laser
cutting process, but further it has been active within laser
welding, both in assisting industry in bringing laser welding into
production in several cases and in performing fundamental R &
D. In this paper some research activities concerning the
weldability of high alloyed austenitic stainless steels for mass
production industry applying industrial lasers for fine welding
will be described. Studies on hot cracking sensitivity of high
alloyed austenitic stainless steel applying both ND-YAG-lasers and
CO2-lasers has been performed and is currently in progress in
collaboration with a major Danish company, who currently is
applying laser welding in several production lines. Furthermore
some case stories from development work on laser welding for
industri-al production will be described. One case story describes
a current production of hermetic weld seams produced on radiator
thermostats applying pulsed laser welding. This application has
now been running in several years. 2 laser systems are currently
welding each serving two welding stations. Another case story is
describing a high precision assembly technique of a product, where
the utilisation of fibre optics has been central in the
development of an unique assembly technique, where the parts to be
assembled can be manufactured with relative cause tolerances and a
simultaneous two beam laser welding can join precisely positioned
parts without any distortion of the alignment.
Original language | English |
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Title of host publication | Proceedings of Eclat '96 |
Place of Publication | Stuttgart |
Publication date | 1996 |
Pages | 133-143 |
Publication status | Published - 1996 |
Event | ECLAT - Stuttgart Duration: 1 Jan 1996 → … |
Conference
Conference | ECLAT |
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City | Stuttgart |
Period | 01/01/1996 → … |