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1.发明授权公开(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.
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2.发明授权公开(公告)号：US07038163B2
公开(公告)日：2006-05-02
申请号：US10457671
申请日：2003-06-09
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： B23K26/00
CPC分类号： B23K26/123 , B23K26/125 , B23K26/32 , B23K35/383 , B23K2103/04 , B23K2103/05 , B23K2103/08 , B23K2103/14 , B23K2103/50
摘要： Binary gas mixture for welding using a laser beam of up to 12 kW, consisting of 30% to 60% nitrogen by volume, the remainder (up to 100%) being helium. Application of this gas mixture to the welding of steel, stainless steel or titanium.
摘要翻译： 使用高达12 kW的激光束进行焊接的二元气体混合物，由体积比为30％至60％的氮，其余（高达100％）为氦。 该气体混合物应用于钢，不锈钢或钛的焊接。
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公开(公告)号：US20060081568A1
公开(公告)日：2006-04-20
申请号：US11265647
申请日：2005-11-02
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： B23K26/20
CPC分类号： B23K26/123 , B23K26/125 , B23K26/32 , B23K35/383 , B23K2103/04 , B23K2103/05 , B23K2103/08 , B23K2103/14 , B23K2103/50
摘要： Binary gas mixture for welding using a laser beam of up to 12 kW, consisting of 30% to 60% nitrogen by volume, the remainder (up to 100%) being helium. Application of this gas mixture to the welding of steel, stainless steel or titanium.
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4.发明授权Use of helium/nitrogen gas mixtures for the laser welding of stainless steel pipes 失效氦/氮气混合物用于不锈钢管的激光焊接公开(公告)号：US06831248B2
公开(公告)日：2004-12-14
申请号：US10457219
申请日：2003-06-09
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： B23K2624
CPC分类号： B23K26/123 , B23K26/125 , B23K26/262 , B23K26/302 , B23K26/32 , B23K35/383 , B23K2101/06 , B23K2103/05 , B23K2103/50
摘要： Process for welding together the two longitudinal edges of a sheet of austenitic, ferritic or martensitic stainless steel so as to obtain a welded pipe, employing at least one laser beam having a power ranging up to 12 kW, and in which a gas mixture is used that consists of 30% to 80% nitrogen by volume and of helium for the remainder (up to 100%). The stainless steel sheet has a thickness of 0.5 to 4 mm and the pipe obtained has a diameter of 5 mm to 50 cm. The welding is full-penetration welding.
摘要翻译： 将奥氏体，铁素体或马氏体不锈钢板的两个纵向边缘焊接在一起的方法，以获得焊接管，使用至少一个功率范围高达12kW的激光束，并且其中使用气体混合物 其含量为30％至80％，其余为氦气（高达100％）。 不锈钢板的厚度为0.5〜4mm，所得到的管的直径为5mm〜50cm。 焊接是全焊接。
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公开(公告)号：US06770841B2
公开(公告)日：2004-08-03
申请号：US10457180
申请日：2003-06-09
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： B23K2620
CPC分类号： B23K26/123 , B23K26/125 , B23K26/32 , B23K35/383 , B23K2101/34 , B23K2103/04 , B23K2103/05 , B23K2103/14 , B23K2103/50
摘要： Binary gas mixture for welding using a laser beam of up to 8 kW, consisting of 60% to 80% nitrogen by volume, the remainder (up to 100%) being helium. Application of this gas mixture to the welding of steel, stainless steel or titanium.
摘要翻译： 使用高达8 kW的激光束进行焊接的二元气体混合物，由体积比为60％至80％的氮，其余（高达100％）为氦。 该气体混合物应用于钢，不锈钢或钛的焊接。
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6.发明授权Method and installation for laser welding with a N2/He gas mixture, the N2/He content being controlled according to the laser power 失效用N2 / He气体混合物激光焊接的方法和安装，N2 / He含量根据激光功率进行控制公开(公告)号：US07385158B2
公开(公告)日：2008-06-10
申请号：US10501269
申请日：2002-12-04
申请人： Francis Briand , Karim Chouf , Philippe Lefebvre
发明人： Francis Briand , Karim Chouf , Philippe Lefebvre
CPC分类号： B23K26/123 , B23K26/125
摘要： A method and an apparatus for welding with a laser beam. A shielding gas mixture of nitrogen and helium is used and the proportions of the component gases are modified depending on the laser beam's power or power density. Plasma formation in the shield gas is minimized by increasing the proportion of helium as the laser beam's power or power density increases.
摘要翻译： 一种用激光束焊接的方法和装置。 使用氮气和氦气的保护气体混合物，并且根据激光束的功率或功率密度来改变组分气体的比例。 当激光束的功率或功率密度增加时，通过增加氦的比例来最小化屏蔽气体中的等离子体形成。
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7.发明申请Method and installation for laser welding with a n2 he gas mixture, the n2 he content being controlled according to the laser power 失效用n 2气体混合物进行激光焊接的方法和装置，根据激光功率来控制n 2公开(公告)号：US20050167406A1
公开(公告)日：2005-08-04
申请号：US10501269
申请日：2002-12-04
申请人： Francis Briand , Karim Chouf , Philippe Lefebvre
发明人： Francis Briand , Karim Chouf , Philippe Lefebvre
CPC分类号： B23K26/123 , B23K26/125
摘要： A method and an apparatus for welding with a laser beam. A shielding gas mixture of nitrogen and helium is used and the proportions of the component gases are modified depending on the laser beam's power or power density. Plasma formation in the shield gas is minimized by increasing the proportion of helium as the laser beam's power or power density increases.
摘要翻译： 一种用激光束焊接的方法和装置。 使用氮气和氦气的保护气体混合物，并且根据激光束的功率或功率密度来改变组分气体的比例。 当激光束的功率或功率密度增加时，通过增加氦的比例来最小化屏蔽气体中的等离子体形成。
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8.发明申请Method and installation for laser welding with an ar/he gas mixture, the ar/he contents being controlled according to the laser power 审中-公开用氩气混合物进行激光焊接的方法和安装，根据激光功率对其进行控制公开(公告)号：US20050016971A1
公开(公告)日：2005-01-27
申请号：US10482445
申请日：2002-05-24
申请人： Francis Briand , Karim Chouf , Philippe Lefebvre
发明人： Francis Briand , Karim Chouf , Philippe Lefebvre
CPC分类号： B23K26/123 , B23K26/12 , B23K26/125
摘要： The invention relates to a laser beam welding method and installation that makes use of a protective gas mixture containing argon and helium. The proportion of argon and/or helium in said gas mixture is chosen or adjusted according to the power or the power density of the laser beam. The laser power is included between 0.5 kW and 30 kW and, preferably, between 5 kW and 20 kW. The protective gas mixture comprises argon and/or helium and, preferably, the gas mixture contains a volume proportion of helium of between 30% and 80%, the remainder being argon and, possibly, inevitable impurities.
摘要翻译： 本发明涉及利用包含氩和氦的保护性气体混合物的激光束焊接方法和装置。 根据激光束的功率或功率密度来选择或调整所述气体混合物中氩和/或氦的比例。 激光功率包括在0.5kW和30kW之间，最好在5kW和20kW之间。 保护气体混合物包括氩气和/或氦气，并且优选地，气体混合物包含30％至80％的体积比例的氦气，其余为氩气和可能的不可避免的杂质。
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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
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。
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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
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。
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