EP 1940580 A1 20080709 - LASER BEAM WELDING METHOD WITH A METAL VAPOUR CAPILLARY FORMATION CONTROL
Title (en)
LASER BEAM WELDING METHOD WITH A METAL VAPOUR CAPILLARY FORMATION CONTROL
Title (de)
LASERSTRAHLSCHWEISSVERFAHREN MIT EINER STEUERUNG FÜR DIE BILDUNG EINER METALLDAMPFKAPILLARE
Title (fr)
PROCEDE DE SOUDAGE PAR FAISCEAU LASER AVEC CONTROLE DE LA FORMATION DU CAPILLAIRE DE VAPEURS METALLIQUES
Publication
Application
Priority
- FR 2006051058 W 20061019
- FR 0553197 A 20051021
Abstract (en)
[origin: WO2007045798A1] The invention relates to a method for welding at least one, preferably two metal parts to each other, by a laser beam consisting in using a laser beam (10), a first gas flow and a welding nozzle provided with an output orifice which is passed through by the laser beam and the first gas flow and in welding the part(s) by melting the metal thereof at a point of the laser beam impact with said weldable part(s) in such a way that a capillary (11) or a key hole (12) filled with metal vapour is formed. During welding, the first gas flow is directed only to the aperture of the metal vapour capillary in a direction perpendicular to the weldable part(s) in such a way that a dynamic gas pressure is produced.
IPC 8 full level
B23K 26/14 (2006.01)
CPC (source: EP US)
B23K 26/1436 (2015.10 - EP US); B23K 26/1437 (2015.10 - EP US); B23K 26/1476 (2013.01 - EP US); B23K 2103/04 (2018.07 - EP US); B23K 2103/05 (2018.07 - EP US); B23K 2103/10 (2018.07 - EP US)
Citation (search report)
See references of WO 2007045798A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007045798 A1 20070426; BR PI0617708 A2 20110802; CN 101291773 A 20081022; CN 101291773 B 20110914; EP 1940580 A1 20080709; FR 2892328 A1 20070427; FR 2892328 B1 20090508; JP 2009512556 A 20090326; US 2009134132 A1 20090528
DOCDB simple family (application)
FR 2006051058 W 20061019; BR PI0617708 A 20061019; CN 200680038665 A 20061019; EP 06820314 A 20061019; FR 0553197 A 20051021; JP 2008536101 A 20061019; US 9093306 A 20061019