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Conduction laser welding

L. Quintino,     Instituto Superior Técnico, Portugal

E. Assunção,     European Federation for Welding, Joining and Cutting, Portugal

Abstract:

Laser welding has two different operational regimes: conduction and keyhole welding. The key difference between these two modes is the power density applied to the welding area. Conduction takes place when the intensity is not sufficient to cause boiling. In keyhole mode, the intensity used is high enough to cause vaporisation and create a keyhole in the melt pool. The current definition of conduction laser welding mode based on power density is discussed. Some studies focused on conduction laser welding are also discussed, emphasising the effect of beam diameter in this ...

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