METHOD FOR WELDING COATED SHEETS WITH AN ENERGY BEAM, SUCH AS A LASER BEAM

A method is claimed for welding, by an energy beam, notably a laser beam, of sheets (2, 3) coated with a material (4 - 7) having an evaporation temperature lower than the melting temperature of the material of the sheets (2, 3), such that the coating material evaporates during welding, and thereby c...

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Bibliographische Detailangaben
Hauptverfasser:	FABBRO, REMY, CRIQUI, BERNARD, KIELWASSER, MATHIEU, SANJEU, CATHERINE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A method is claimed for welding, by an energy beam, notably a laser beam, of sheets (2, 3) coated with a material (4 - 7) having an evaporation temperature lower than the melting temperature of the material of the sheets (2, 3), such that the coating material evaporates during welding, and thereby creates vapour in the capillary (9) formed by the material melted by the welding. The method consists of providing an energy beam (1) directed on the welding zone and adapted in a manner that favours the evacuation of the vapour to the outside, notably through the capillary (9).