Laser cutter with assist gas mixer and method of mixing assist gases

    公开(公告)号:US12059747B1

    公开(公告)日:2024-08-13

    申请号:US17084136

    申请日:2020-10-29

    CPC classification number: B23K26/125 B23K26/127 B23K26/38

    Abstract: A gas mixing apparatus for a laser cutter and a laser cutter including that apparatus. The mixing apparatus includes a housing defining a chamber, first and second inlet ports opening into the chamber at an obtuse angle to each other, and an outlet port. A hollow lance mounted in the first inlet port conducts a first gas into the chamber. In some embodiments, a gas sensor is in fluid communication with the chamber; and an adjustable pressure regulator is responsive to the gas sensor and is in fluid communication with the first inlet port to control the first gas as it mixes with a second gas flowing into the chamber through the second inlet port to maintain a predetermined ratio of the first gas to the second gas and thereby provide an assist gas. In some applications, a laser cutting head is in fluid communication with the output port to receive the assist gas.

    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:US20150174701A1

    公开(公告)日:2015-06-25

    申请号:US14611444

    申请日:2015-02-02

    Abstract: 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.

    Abstract translation: 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,由镱系光纤产生的激光束的波长为1.07〜1.09μm,激光束的品质因数在0.33〜8mm·mrad之间,激光束的功率为0.1〜25kW 。 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,其还包含一种或多种选自O 2,CO 2,H 2和CH 4的另外的化合物。

    Method of forming substrate for fluid ejection device
    5.
    发明授权
    Method of forming substrate for fluid ejection device 有权
    形成流体喷射装置的基材的方法

    公开(公告)号:US08653410B2

    公开(公告)日:2014-02-18

    申请号:US11262068

    申请日:2005-10-28

    Abstract: A method of forming an opening through a substrate having a first side and a second side opposite the first side includes laser machining a first portion of the opening into the substrate from the second side toward the first side, and abrasive machining a second portion of the opening into the substrate. Abrasive machining the second portion of the opening into the substrate includes completing the opening through the substrate.

    Abstract translation: 通过具有第一侧和与第一侧相对的第二侧的基板形成开口的方法包括将第一部分的开口从第二侧朝向第一侧激光加工到基板中,并且对第 打开底物。 将开口的第二部分的磨料加工到基底中包括完成穿过基底的开口。

    Method for Cutting Stainless Steel with a Fiber Laser
    9.
    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:US20120024831A1

    公开(公告)日:2012-02-02

    申请号:US13152171

    申请日:2011-06-02

    Abstract: 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.

    Abstract translation: 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,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,氩气及其混合物,并且任选地,其还包含一种或多种选自O 2,CO 2,H 2和CH 4的另外的化合物。

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