公开(公告)号：US20050011868A1

公开(公告)日：2005-01-20

申请号：US10489444

申请日：2002-07-29

申请人： Olivier Matile ,  Karim Chouf ,  Philippe Leferbve

发明人： Olivier Matile ,  Karim Chouf ,  Philippe Leferbve

IPC分类号： B23K9/16 ,  B23K10/02 ,  B23K26/00 ,  B23K26/14 ,  B23K26/20 ,  B23K28/02 ,  B23K103/04 ,  B23K103/10 ,  B23K103/16

CPC分类号： B23K28/02 ,  B23K26/348 ,  B23K2101/185

摘要： The invention concerns a hybrid arc-laser method for welding metal parts, such as a tube or tailored blanks by producing at least a weld joint between edges to be welded and by using a laser beam and an electric arc combined with each other so as to melt and subsequently solidify the metal along said edges to be welded. Said method consists in: (a) striking at least a pilot arc between an electrode and a hybrid welding head nozzle, said electrode being powered with electric current and being contacted with a first gas input in said hybrid welding head, said first gas having a gas composition capable of promoting sparking of the pilot arc; (b) transferring the thus sparked pilot arc to the edges of the part(s) to be welded; and (c) feeding said hybrid welding head with a second gas so as to obtain a protective gaseous atmosphere consisting of a mixture of the first gas and the second gas, said protective gaseous atmosphere being evacuated towards the welding zone by said hybrid welding head and protecting at least part of the welding zone during welding of the weld joint by combining the laser beam and the electric arc, the volume flow rate of the first gas (Q1) and the volume flow rate of the second gas (Q2) being adjusted such that: 0

摘要翻译： 本发明涉及一种用于通过在待焊接的边缘之间产生至少一个焊接接头并且通过使用激光束和彼此结合的电弧来焊接诸如管或定制坯料的金属部件的混合电弧激光器方法，以便 熔化并随后沿着待焊接的边缘使金属固化。 所述方法包括：（a）在电极和混合焊接头喷嘴之间至少引导引弧，所述电极由电流供电并与所述混合焊接头中的第一气体输入接触，所述第一气体具有 能够促进引燃弧的火花的气体成分; （b）将如此引发的先导电弧转移到待焊接的部件的边缘; 和（c）用第二气体供给所述混合焊接头，以获得由第一气体和第二气体的混合物组成的保护性气体气体，所述保护性气体气体通过所述混合焊接头朝向焊接区域抽真空， 通过组合激光束和电弧来焊接焊接部的至少一部分焊接区域，第一气体（Q1）的体积流量和第二气体（Q2）的体积流量被调整为 ：0

公开(公告)号：US20070119833A1

公开(公告)日：2007-05-31

申请号：US11560287

申请日：2006-11-15

申请人： Francis Briand ,  Karim Chouf ,  Hakim Maazaoui

发明人： Francis Briand ,  Karim Chouf ,  Hakim Maazaoui

IPC分类号： B23K26/38 ,  B23K26/06

CPC分类号： B23K26/08 ,  B23K26/06 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/1436 ,  B23K26/38 ,  B23K26/40 ,  B23K2103/04 ,  B23K2103/50

摘要： The invention relates to a laser cutting method for cutting a C-Mn steel workpiece, characterized in that laser beam generation means comprising at least one silica fiber with an ytterbium-doped core is used to generate the laser beam. Preferably, the ytterbium-based fiber has a wavelength between 1.07 and 1.1 μm, preferably 1.07 μm, the quality factor of the laser beam is between 0.33 and 8 mm.mrad, and the laser beam has a power of between 0.1 and 25 kW. The assistance gas for the laser beam is chosen from nitrogen, helium, argon, oxygen, CO2 and mixtures thereof, and, optionally, it further contains one or more additional compounds chosen from H2 and CH4.

摘要翻译： 本发明涉及一种用于切割C-Mn钢工件的激光切割方法，其特征在于：激光束产生装置包括至少一个具有镱掺杂核心的石英光纤，以产生激光束。 优选地，镱基纤维的波长在1.07和1.1μm之间，优选为1.07μm，激光束的品质因子在0.33和8mm.mrad之间，激光束的功率在0.1到25kW之间。 用于激光束的辅助气体选自氮气，氦气，氩气，氧气，CO 2和其混合物，并且任选地，其还包含一种或多种另外的选自H 2 和CH 4。

公开(公告)号：US20070119834A1

公开(公告)日：2007-05-31

申请号：US11560299

申请日：2006-11-15

申请人： Francis Briand ,  Karim Chouf ,  Hakim Maazaoui

发明人： Francis Briand ,  Karim Chouf ,  Hakim Maazaoui

IPC分类号： B23K26/38 ,  B23K26/06

CPC分类号： B23K26/40 ,  B23K26/123 ,  B23K26/125 ,  B23K26/142 ,  B23K26/38 ,  B23K2103/05 ,  B23K2103/50

摘要： The invention relates to a laser cutting method for cutting a stainless steel workpiece using laser beam generation means comprising a silica fibre with an ytterbium-doped core to generate the laser beam. Preferably, the laser beam generated by the ytterbium-based fibre has a wavelength between 1.07 and 1.09 μm, a quality factor of the laser beam is between 0.33 and 8 mm.mrad, and the laser beam has a power of between 0.1 and 25 kW. The assistance gas for the laser beam is chosen from nitrogen, helium, argon and mixtures thereof, and, optionally, it further contains one or more additional compounds chosen from O2, CO2, H2 and CH4.

摘要翻译： 本发明涉及一种使用激光束产生装置切割不锈钢工件的激光切割方法，该装置包括具有镱掺杂芯的二氧化硅纤维以产生激光束。 优选地，由镱基光纤产生的激光束具有1.07和1.09μm之间的波长，激光束的质量因子在0.33和8mm.mrad之间，并且激光束具有在0.1和25kW之间的功率 。 用于激光束的辅助气体选自氮气，氦气，氩气及其混合物，并且任选地，其还含有一种或多种选自O 2，CO 2， H 2，H 2和CH 4。

公开(公告)号：US20060196859A1

公开(公告)日：2006-09-07

申请号：US11324655

申请日：2006-01-03

申请人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

发明人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

IPC分类号： B23K26/38 ,  B23K26/06

CPC分类号： B23K26/067 ,  B23K26/0604 ,  B23K26/0617 ,  B23K26/38

摘要： Methods for laser beam cutting metal workpieces with a thickness between 4 mm and 25 mm. A double focusing lens is provided to make it possible to focus a laser beam on a first focusing and a second focusing point. These points are separate from each other and both lie on the laser's optical axis. The lens has a focal length between 170 mm and 300 mm.

摘要翻译： 激光束切割金属工件的方法，厚度在4 mm和25 mm之间。 提供双重聚焦透镜以使得可以将激光束聚焦在第一聚焦点和第二聚焦点上。 这些点彼此分开，都位于激光的光轴上。 该镜头的焦距在170mm和300mm之间。

公开(公告)号：US20060186099A1

公开(公告)日：2006-08-24

申请号：US11324621

申请日：2006-01-03

申请人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

发明人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

IPC分类号： B23K26/06

CPC分类号： B23K26/067 ,  B23K26/0604 ,  B23K26/0617

摘要： The invention relates to a method for laser-beam cutting a metal workpiece having a thickness of less than 5 mm, in which a double focusing lens is employed making it possible to focus the laser beam at least at a first focusing point (PF1) and a second focusing point (PF2) which are separate from each other and lie on the beam axis, characterized in that the lens has a focal length (FL) of between 80 and 135 mm.

摘要翻译： 本发明涉及一种用于激光束切割厚度小于5mm的金属工件的方法，其中使用双重聚焦透镜，使得可以将激光束至少聚焦在第一聚焦点（PF1）和 第二聚焦点（PF2），其彼此分离并且位于光束轴上，其特征在于，所述透镜具有介于80和135mm之间的焦距（FL）。

公开(公告)号：US09321131B2

公开(公告)日：2016-04-26

申请号：US13120673

申请日：2009-09-03

申请人： Philippe Lefebvre ,  Karim Chouf

发明人： Philippe Lefebvre ,  Karim Chouf

IPC分类号： B23K26/00 ,  B23K26/24 ,  B23K26/08 ,  B23K26/14 ,  B23K26/32

CPC分类号： B23K26/14 ,  B23K26/08 ,  B23K26/1435 ,  B23K26/1436 ,  B23K26/147 ,  B23K26/244 ,  B23K26/32 ,  B23K26/322 ,  B23K26/402 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/05 ,  B23K2103/08 ,  B23K2103/10 ,  B23K2103/14 ,  B23K2103/15 ,  B23K2103/26 ,  B23K2103/50

摘要： The invention relates to a method for the laser welding of metal parts that comprises generating a CO2 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 vapor capillary with the simultaneous generation of a metal plasma that propagates outside the metal vapor 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.

摘要翻译： 本发明涉及一种用于金属部件的激光焊接的方法，其包括产生CO 2激光束，在所述部件之间的接合平面方向上分配由所述气体或气体混合物制成的保护气体射流，熔化和蒸发金属 具有激光束的金属部件，以便产生金属蒸气毛细管，同时产生在金属蒸气毛细管外传播的金属等离子体，从而在所述接合面上形成金属等离子体羽毛。 保护气体射流进一步指向在接合平面上形成的金属等离子体羽流。 气体射流优选地被引导为使得后者与金属等离子体羽流的顶部齐平并且在所述部件的金属未被梁熔化的位置处撞击在部件上。

公开(公告)号：US08278591B2

公开(公告)日：2012-10-02

申请号：US12162440

申请日：2007-01-22

申请人： Karim Chouf ,  Hakim Maazaoui ,  Eric Verna ,  Françis Briand

发明人： Karim Chouf ,  Hakim Maazaoui ,  Eric Verna ,  Françis Briand

IPC分类号： B23K26/38 ,  B23K26/14 ,  B23K26/08 ,  H01S3/06

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，涉及使用包括至少一种波长在1和4μm之间的镱基纤维的激光束产生装置，以便产生激光束。 选择激光束具有小于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的品质因数（BPP）。

公开(公告)号：US20120012570A1

公开(公告)日：2012-01-19

申请号：US13152159

申请日：2011-06-02

申请人： Francis Briand ,  Karim Chouf ,  Hakim Maazaoui

发明人： Francis Briand ,  Karim Chouf ,  Hakim Maazaoui

IPC分类号： B23K26/00

CPC分类号： B23K26/08 ,  B23K26/06 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/1436 ,  B23K26/38 ,  B23K26/40 ,  B23K2103/04 ,  B23K2103/50

摘要： The invention relates to a laser cutting method for cutting a C—Mn steel workpiece, characterized in that laser beam generation means comprising at least one silica fiber with an ytterbium-doped core is used to generate the laser beam. Preferably, the ytterbium-based fiber has a wavelength between 1.07 and 1.1 μm, preferably 1.07 μm, the quality factor of the laser beam is between 0.33 and 8 mm.mrad, and the laser beam has a power of between 0.1 and 25 kW. The assistance gas for the laser beam is chosen from nitrogen, helium, argon, oxygen, CO2 and mixtures thereof, and, optionally, it further contains one or more additional compounds chosen from H2 and CH4.

摘要翻译： 本发明涉及一种用于切割C-Mn钢工件的激光切割方法，其特征在于：激光束产生装置包括至少一个具有镱掺杂核心的石英光纤，以产生激光束。 优选地，镱基纤维的波长在1.07和1.1μm之间，优选为1.07μm，激光束的质量因子在0.33和8mm.mrad之间，激光束的功率在0.1到25kW之间。 用于激光束的辅助气体选自氮气，氦气，氩气，氧气，CO 2及其混合物，并且任选地，其还含有一种或多种选自H 2和CH 4的其它化合物。

公开(公告)号：US20100282723A1

公开(公告)日：2010-11-11

申请号：US12812145

申请日：2008-12-16

申请人： Karim Chouf ,  Philippe Lefebvre

发明人： Karim Chouf ,  Philippe Lefebvre

IPC分类号： B23K26/00

CPC分类号： B23K26/147 ,  B23K26/1437 ,  B23K26/32 ,  B23K2101/34 ,  B23K2103/08 ,  B23K2103/50

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.

摘要翻译： 本发明涉及一种使用焊接喷嘴焊接激光束的方法，该焊接喷嘴包括：具有轴线并且至少包括上表面，下表面和周壁的喷嘴体; 在所述喷嘴体的上表面和下表面之间延伸的轴向空腔，以限定从所述周壁的表面凹陷的外通道; 以及在上表面和下表面之间穿过喷嘴体钻出的多个内通道。 本发明的激光焊接方法提供了与熔融金属浴机械相互作用的动态气体射流，并且还能够更好地控制浴流体动力学流动，从而更好的激光焊接效率。

公开(公告)号：US06815635B2

公开(公告)日：2004-11-09

申请号：US10458058

申请日：2003-06-10

申请人： Francis Briand ,  Karim Chouf ,  Philippe Lefebvre ,  Eric Verna

发明人： Francis Briand ,  Karim Chouf ,  Philippe Lefebvre ,  Eric Verna

IPC分类号： B23K2612

CPC分类号： B23K26/123 ,  B23K26/125 ,  B23K26/32 ,  B23K35/383 ,  B23K2101/35 ,  B23K2103/04 ,  B23K2103/50

摘要： Method of welding tailored blanks consisting of a material mostly containing steel and a proportion greater than 0.015% aluminium by weight, using at least one laser beam, in which at least one weld joint of the full-penetration type is made using a gas mixture consisting of 30% to 80% nitrogen by volume, the rest being helium (up to 100%) in order to assist the said laser beam. The method of the invention is particularly recommended for welding motor vehicle elements, especially bodywork, doors, bonnets or the like.