This work present lap welding of zinc coated sheets and leads to the realization of an industrial process.The difficulty comes from the fact that the zinc boiling point (1180K) is lower than the steel melting point (1800K) leading to violent boiling of zinc in steel.We choose a two-spots process: first one concerns the zinc coating vaporization; second one allows welding.Previously, we develop a numerical modelling that permits a process parameters choice and limits the plan of experimentations.Scanning speed, laser power, size and shape of the two spots were optimised. Our numerical software leads to the choice of a zinc vaporization elliptic spotlight.Experimentations confirm the predicted tendency.
Numerical Study of Zinc Coated Car Body Laser Welding
Sae Technical Papers
Automotive and Transportation Technology Congress and Exposition ; 2001
01.10.2001
Aufsatz (Konferenz)
Englisch
Numerical study of zinc coated car body laser welding
Kraftfahrwesen | 2001
|Numerical study of zinc coated car body laser welding
Tema Archiv | 2001
|2001-01-3358 Numerical Study of Zinc Coated Car Body Laser Welding
British Library Conference Proceedings | 2001
|Nd:YAG Laser Welding of Zinc-coated Steel Sheet
SAE Technical Papers | 1998
|Nd:YAG laser welding of zinc-coated steel sheet
Kraftfahrwesen | 1998
|