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1.发明公开PROCEDE ET INSTALLATION DE COUPAGE LASER AVEC MODIFICATION DU FACTEUR DE QUALITE DU FAISCEAU LASER PAR UN COMPOSANT OPTIQUE DIFFRACTANT 有权激光切割方法及装置有用于修改激光光束质量因子由衍射光学COMPONENT
公开(公告)号：EP2334465A1
公开(公告)日：2011-06-22
申请号：EP09740493.3
申请日：2009-08-26
申请人： AIR LIQUIDE WELDING FRANCE , L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
摘要： A method of cutting a workpiece (30) to be cut by a laser beam (10), in which an incident laser beam (10) is generated that has an initial beam parameter product (BPP), given by means of a laser source (1), preferably an ytterbium-doped or erbium-doped fibre laser source, coupled to at least one optical fibre for conveying the beam. Said incident laser beam (10) is brought to a focusing head (3, 4) comprising at least one optical focusing device (14). The incident laser beam (10) is focused by means of said optical focusing device (14), so as to obtain a focused laser beam, and the workpiece (30) is cut by means of the focused laser beam. According to the invention, the quality factor of the incident laser beam (10) is adjusted or modified by means of an optical device (16) designed to be able to modify or vary the BPP of a laser beam so as to obtain a modified focused laser beam (10b) having a modified BPP which is different from the BPP of said incident laser beam. Associated equipment for implementing said method.
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2.发明公开
公开(公告)号：EP2004360A1
公开(公告)日：2008-12-24
申请号：EP07731503.4
申请日：2007-01-22
申请人： L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude , AIR LIQUIDE WELDING FRANCE
发明人： BRIAND, Francis , CHOUF, Karim , MAAZAOUI, Hakim , VERNA, Eric
CPC分类号： B23K26/38 , B23K26/064 , B23K26/0648 , B23K26/0665 , B23K26/123 , B23K26/125 , B23K26/14
摘要： The invention relates to method for cutting a part using a laser beam, involving the use of laser beam generation means comprising at least one ytterbium-based fibre having a wavelength of between 1 and 4 μm in order to generate the laser beam. The laser beam is selected to have a power of less than 100 kW, a power density of at least 1 MW/cm2, a focused beam diameter of at least 0.1 mm and a quality factor (BPP) of less than 10 mm.mrad.
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公开(公告)号：EP4170069A1
公开(公告)日：2023-04-26
申请号：EP21203661.0
申请日：2021-10-20
摘要： Electrolysis cell (1), comprising
- an anode (2),
- a cathode (3),
- a membrane (4) arranged between the anode (2) and the cathode (3),
- an isolator (5) that is attached to the anode (2), the membrane (4) and the cathode (3) such that an anode chamber (6) is formed between the anode (2), the membrane (4) and the isolator (5) and a cathode chamber (7) is formed between the cathode (3), the membrane (4) and the isolator (5),
wherein the isolator (5) comprises multiple isolation elements (8,9,10), and wherein each of the isolation elements (8,9,10) is joined permanently to at least one of the other isolation elements (8,9,10).-
4.发明授权
公开(公告)号：EP2473315B1
公开(公告)日：2014-01-15
申请号：EP10762988.3
申请日：2010-08-17
发明人： BRIAND, Francis , BALLERINI, Gaia , DEBECKER, Isabelle , JOUANNEAU, Thomas , MAAZAOUI, Hakim , VERNA, Eric
CPC分类号： B23K26/046 , B23K26/06 , B23K26/38 , G02B19/0014 , G02B19/0052 , G02B27/0966 , G02B27/30 , G02B27/40
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5.发明授权
公开(公告)号：EP2004360B9
公开(公告)日：2011-09-14
申请号：EP07731503.4
申请日：2007-01-22
申请人： L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude , AIR LIQUIDE WELDING FRANCE
发明人： BRIAND, Francis , CHOUF, Karim , MAAZAOUI, Hakim , VERNA, Eric
CPC分类号： B23K26/38 , B23K26/064 , B23K26/0648 , B23K26/0665 , B23K26/123 , B23K26/125 , B23K26/14
摘要： The invention relates to method for cutting a part using a laser beam, involving the use of laser beam generation means comprising at least one ytterbium-based fibre having a wavelength of between 1 and 4 μm in order to generate the laser beam. The laser beam is selected to have a power of less than 100 kW, a power density of at least 1 MW/cm2, a focused beam diameter of at least 0.1 mm and a quality factor (BPP) of less than 10 mm.mrad.
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6.发明授权PROCEDE ET INSTALLATION DE COUPAGE LASER AVEC MODIFICATION DU FACTEUR DE QUALITE DU FAISCEAU LASER PAR UN COMPOSANT OPTIQUE DIFFRACTANT 有权激光切割方法及装置有用于修改激光光束质量因子由衍射光学COMPONENT
公开(公告)号：EP2334465B1
公开(公告)日：2015-03-18
申请号：EP09740493.3
申请日：2009-08-26
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7.发明公开
公开(公告)号：EP2473315A1
公开(公告)日：2012-07-11
申请号：EP10762988.3
申请日：2010-08-17
申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude , Air Liquide Welding France
发明人： BRIAND, Francis , BALLERINI, Gaia , DEBECKER, Isabelle , JOUANNEAU, Thomas , MAAZAOUI, Hakim , VERNA, Eric
CPC分类号： B23K26/046 , B23K26/06 , B23K26/38 , G02B19/0014 , G02B19/0052 , G02B27/0966 , G02B27/30 , G02B27/40
摘要： The invention relates to a head for focusing a laser beam, including a collimator lens (13) and a focusing lens (14), wherein the collimator lens (13) and the focusing lens (14) are made from ZnS and have a peripheral thickness of at least 5 mm. In addition, a folding mirror (15) operating at an angle of incidence (α) of between 40 and 50° is provided on the laser beam path inside the focusing head between the collimator (13) and focusing (14) lenses. The invention further relates to: laser beam cutting equipment including a solid-state laser (SL) device emitting a laser beam having a wavelength of between 1.06 and 1.10 μm and a power of between 0.1 and 25 kW, a focusing head according to the invention, and a carrier fiber (CF) connecting the solid-state laser (SL) device to the focusing head such as to carry the laser beam emitted by the solid-state laser (SL) device to the focusing head.
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8.发明授权PROCÉDÉ DE COUPAGE AVEC UN LASER AYANT AU MOINS UNE FIBRE À BASE D'YTTERBIUM AVEC CONTRÔLE D'AU MOINS DE LA PUISSANCE DE LA SOURCE LASER, DU DIAMÈTRE DU FAISCEAU FOCALISÉ ET DU FACTEUR QUALITÉ DU FAISCEAU 有权PROCÉDÉDE COUPAGE AVEC UN LASER AYANT AU MOINS UNE FIBERÀBASE D'YTTERBIUM AVEC CONTRACLE DE AU MOINS DE LA PUISSANCE DE LA SOURCE LASER，DUDIAMÈTREDU FAISCEAUFOCALISÉET DU FACTEURQUALITÉDU FAISCEAU
公开(公告)号：EP2004360B1
公开(公告)日：2011-03-23
申请号：EP07731503.4
申请日：2007-01-22
申请人： L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude , AIR LIQUIDE WELDING FRANCE
发明人： BRIAND, Francis , CHOUF, Karim , MAAZAOUI, Hakim , VERNA, Eric
CPC分类号： B23K26/38 , B23K26/064 , B23K26/0648 , B23K26/0665 , B23K26/123 , B23K26/125 , B23K26/14
摘要： The invention relates to method for cutting a part using a laser beam, involving the use of laser beam generation means comprising at least one ytterbium-based fibre having a wavelength of between 1 and 4 μm in order to generate the laser beam. The laser beam is selected to have a power of less than 100 kW, a power density of at least 1 MW/cm2, a focused beam diameter of at least 0.1 mm and a quality factor (BPP) of less than 10 mm.mrad.
摘要翻译： 本发明涉及使用激光束切割零件的方法，涉及使用激光束产生装置，该激光束产生装置包括至少一种波长在1和4μm之间的基于镱的光纤以产生激光束。 激光束被选择为具有小于100kW的功率，至少1MW / cm 2的功率密度，至少0.1mm的聚焦光束直径和小于10mm.mrad的品质因子（BPP）。
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9.发明公开PROCEDE DE SOUDAGE PAR FAISCEAU LASER AVEC CONTROLE DE LA FORMATION DU CAPILLAIRE DE VAPEURS METALLIQUES 审中-公开与对照FOR A METALLDAMPFKAPILLARE的建立激光焊接工艺
公开(公告)号：EP1940580A1
公开(公告)日：2008-07-09
申请号：EP06820314.0
申请日：2006-10-19
申请人： L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude , Centre National de la Recherche Scientifique
发明人： BRIAND, Francis , VERNA, Eric , SLIMANI, Sonia , FABBRO, Rémy , COSTE, Frédéric
IPC分类号： B23K26/14
CPC分类号： B23K26/1476 , B23K26/1436 , B23K26/1437 , B23K2203/04 , B23K2203/05 , B23K2203/10
摘要： 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.
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