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    METHOD FOR CUTTING C-Mn STEEL WITH A FIBER LASER
    2.
    发明申请
    METHOD FOR CUTTING C-Mn STEEL WITH A FIBER LASER 审中-公开
    用光纤激光切割C-Mn钢的方法

    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。

    Method for Cutting C-Mn Steel with a Fiber Laser
    3.
    发明申请
    Method for Cutting C-Mn Steel with a Fiber Laser 有权
    用光纤激光切割C-Mn钢的方法

    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。

    METHOD FOR CUTTING STAINLESS STEEL WITH A FIBER LASER
    4.
    发明申请
    METHOD FOR CUTTING STAINLESS STEEL WITH A FIBER LASER 审中-公开
    用光纤激光切割不锈钢的方法

    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。

    Laser cutting of thick metal pieces with a double-focal lens
    5.
    发明申请
    Laser cutting of thick metal pieces with a double-focal lens 审中-公开
    用双焦点激光切割厚金属片

    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。

    Laser cutting of thin metal workpieces with a double-focal lens
    6.
    发明申请
    Laser cutting of thin metal workpieces with a double-focal lens 审中-公开
    激光切割薄金属工件与双焦点镜头

    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）。

    Method for cutting C—Mn steel with a fiber laser
    7.
    发明授权
    Method for cutting C—Mn steel with a fiber laser 有权
    用光纤激光切割C-Mn钢的方法

    公开(公告)号：US08710400B2

    公开(公告)日：2014-04-29

    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： B23K26/40 ,  B23K26/14

    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。

    Laser Cutting Method and Equipment, with means for Modifying the Laser Beam Quality Factor by a Diffractive Optical Component
    10.
    发明申请
    Laser Cutting Method and Equipment, with means for Modifying the Laser Beam Quality Factor by a Diffractive Optical Component 审中-公开
    激光切割方法和设备，具有通过衍射光学部件修改激光束质量因子的装置

    公开(公告)号：US20110248005A1

    公开(公告)日：2011-10-13

    申请号：US13063689

    申请日：2009-08-26

    申请人： Francis Briand ,  Gaia Ballerini ,  Isabelle Debecker ,  Hakim Maazaoui ,  Erie Verna

    发明人： Francis Briand ,  Gaia Ballerini ,  Isabelle Debecker ,  Hakim Maazaoui ,  Erie Verna

    IPC分类号： B23K26/00

    CPC分类号： B23K26/06 ,  B23K26/38

    摘要： A method of cutting a work-piece to be cut by a laser beam, in which an incident laser beam is generated that has an initial beam parameter product (BPP), given by means of a laser source, preferably an ytterbium-doped or erbium-doped fiber laser source, coupled to at least one optical fiber for conveying the beam. Said incident laser beam is brought to a focusing head comprising at least one optical focusing device. The incident laser beam is focused by means of said optical focusing device, so as to obtain a focused laser beam, and the work-piece is cut by means of the focused laser beam. According to the invention, the quality factor of the incident laser beam is adjusted or modified by means of an optical device designed to be able to modify or vary the BPP of a laser beam so as to obtain a modified focused laser beam having a modified BPP which is different from the BPP of said incident laser beam. Associated equipment for implementing said method.

    摘要翻译： 一种切割由激光束切割的工件的方法，其中产生具有通过激光源给出的初始光束参数乘积（BPP）的入射激光束，优选掺镱或铒 掺杂的光纤激光源，耦合到至少一个用于输送光束的光纤。 所述入射激光束被带到包括至少一个光聚焦装置的聚焦头。 入射激光束通过所述光学聚焦装置聚焦，以获得聚焦的激光束，并且通过聚焦的激光束切割工件。 根据本发明，通过设计为能够修改或改变激光束的BPP的光学装置来调整或修改入射激光束的品质因数，从而获得具有改进的BPP的改进的聚焦激光束 其与所述入射激光束的BPP不同。 用于实施所述方法的相关设备。