发明公开
EP2346640A1 PROCÉDÉ DE SOUDAGE LASER DE TYPE CO2 AVEC BUSE À JET DYNAMIQUE
有权
VERFAHREN ZUM CO2-LASERSCHWISSEN MIT EINER DYNAMISCHENSTRAHLDÜSE
- 专利标题： PROCÉDÉ DE SOUDAGE LASER DE TYPE CO2 AVEC BUSE À JET DYNAMIQUE
- 专利标题（英）： Method for co2 / laser welding with a dynamic jet nozzle
- 专利标题（中）： VERFAHREN ZUM CO2-LASERSCHWISSEN MIT EINER DYNAMISCHENSTRAHLDÜSE
-
申请号： EP09741361.1申请日： 2009-09-03
-
公开(公告)号： EP2346640A1公开(公告)日： 2011-07-27
- 发明人: LEFEBVRE, Philippe , CHOUF, Karim
- 申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- 申请人地址： 75, Quai d'Orsay 75007 Paris FR
- 专利权人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- 当前专利权人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- 当前专利权人地址： 75, Quai d'Orsay 75007 Paris FR
- 代理机构： Pittis, Olivier
- 优先权： FR0856411 20080924
- 国际公布： WO2010034916 20100401
- 主分类号： B23K26/08
- IPC分类号： B23K26/08
摘要：
The invention relates to a method for the laser welding of metal parts that comprises generating a CO
2 laser beam, dispensing a protection gas jet made of said gas or gas mixture in the direction of the junction plane between the parts, melting and evaporating the metal of the metal parts with the laser beam in order to generate a metal vapour capillary with the simultaneous generation of a metal plasma that propagates outside the metal vapour capillary and thus forms a metal plasma plume above said junction plane. The protection gas jet is further directed towards the metal plasma plume forming above the junction plane. The gas jet is preferably directed so that the latter comes flush with the top of the metal plasma plume and impinges on the part(s) at a location where the metal of said parts has not been molten by the beam.
2 laser beam, dispensing a protection gas jet made of said gas or gas mixture in the direction of the junction plane between the parts, melting and evaporating the metal of the metal parts with the laser beam in order to generate a metal vapour capillary with the simultaneous generation of a metal plasma that propagates outside the metal vapour capillary and thus forms a metal plasma plume above said junction plane. The protection gas jet is further directed towards the metal plasma plume forming above the junction plane. The gas jet is preferably directed so that the latter comes flush with the top of the metal plasma plume and impinges on the part(s) at a location where the metal of said parts has not been molten by the beam.
公开/授权文献
信息查询
