WELDING METHOD, ESPECIALLY TUBULAR PIECES SUCH AS METALLIC CONDUITS END-TO-END TO FORM PIPELINE-TYPE METAL PIPES

摘要

The invention relates to a welding method, in particular to tubular parts such as metal ducts placed end to end to form pipeline-type metal ducts, in which the penetration pass is made from the outside.The invention consists of a single melt is created under the simultaneous action of at least one laser beam (1) transmitted by optical fiber and at least one gas-shielded electric arc generated from a fuse electrode (2a). ) constituting the filler material.Application to the manufacture of pipelines.