发明名称 |
METHOD FOR LASER WELDING USING A NOZZLE CAPABLE OF STABILISING THE KEYHOLE |
摘要 |
The invention relates to a method for welding with a laser beam, using a welding nozzle comprising: a nozzle body having an axis and including at least an upper surface, a lower surface and a peripheral wall; an axial cavity extending between the upper and lower surfaces of the nozzle body so as to define an outer channel recessed from the surface of said peripheral wall; and a plurality of inner passages drilled through the nozzle body between the upper and lower surfaces. The laser welding method of the invention provides a dynamic gas jet mechanically interacting with the molten metal bath, and further enables better control of the bath hydrodynamic flows, and thus better laser-welding efficiency. |
申请公布号 |
EP2240294(B1) |
申请公布日期 |
2012.07.04 |
申请号 |
EP20080870211 |
申请日期 |
2008.12.16 |
申请人 |
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |
发明人 |
CHOUF, KARIM;LEFEBVRE, PHILIPPE |
分类号 |
B23K26/14;B23K26/16;B23K26/32;F23D14/54;F23D14/58;H01S3/02 |
主分类号 |
B23K26/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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