<p>Laser welding of metal parts comprises focusing a first laser beam to form a keyhole and focusing a second laser beam on the keyhole. The depth of penetration of the second beam is greater than that of the first.</p>
申请公布号
EP1923165(A1)
申请公布日期
2008.05.21
申请号
EP20070301531
申请日期
2007.11.08
申请人
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
发明人
BALLERINI, GAIA;LEFEBVRE, PHILIPPE;BRIAND, FRANCIS
