Method of hybrid laser arc welding at least two workpieces with two laser beams

A method of and an apparatus (10) for welding workpieces (12,14) together by conducting a laser beam welding process on a joint region (22) that includes a weld seam defined by and between faying surfaces (16) of the workpieces (12,14), and then conducting a hybrid laser arc welding process on the j...

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Bibliographic Details
Main Authors DIMASCIO, PAUL STEPHEN, NOWAK, DANIEL ANTHONY
Format Patent
LanguageEnglish
French
German
Published 07.10.2015
Subjects
BLASTING
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
HEATING
LIGHTING
MACHINE TOOLS
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
PRODUCING MECHANICAL POWER
SOLDERING OR UNSOLDERING
TRANSPORTING
WEAPONS
WELDING
WIND MOTORS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
WORKING BY LASER BEAM
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Summary:A method of and an apparatus (10) for welding workpieces (12,14) together by conducting a laser beam welding process on a joint region (22) that includes a weld seam defined by and between faying surfaces (16) of the workpieces (12,14), and then conducting a hybrid laser arc welding process on the joint region (22). The laser beam welding process entails causing a first laser beam (32) to travel along the joint region (22), penetrate the weld seam and form a weldment (40). The hybrid laser arc welding process remelts the weldment (40) by simultaneously causing an electric arc (36) and a second laser beam (34) to overlap and travel along the joint region (22) and form a weld pool in the weldment (40). On cooling, a weld joint (30) is formed within the joint region (22) and its weld seam.
Bibliography:Application Number: EP20110171291