Methods for the union of two formats and the formats and products obtained

摘要

Method for joining a first format (A) and a second format (B) wherein the first format and the second format comprise a steel substrate (1) with a coating (2) comprising an aluminum or aluminum alloy layer , the method comprises - selecting a first portion (A1) of the first format to be attached to the second format, and selecting a second portion (B2) of the second format to be attached to the first portion, - welding the first portion to the second portion , wherein - welding comprises the use of a laser beam and an arc welding torch, wherein - the arc welding torch comprises a supply wire electrode - the input wire electrode is made of an alloy of steel comprising gammagenic elements, optionally a stainless steel alloy comprising gammagenic elements, and - moving both the laser beam (20) and the arc welding torch in a welding direction, the first portion and the second portion of the formats in the welding zone melting during welding, characterized in that, in the welding direction, the arc welding torch (30) is positioned in front of the laser beam.