Method for coupling a laser beam into a liquid-jet
    7.
    发明授权
    Method for coupling a laser beam into a liquid-jet 有权
    将激光束耦合到液体射流中的方法

    公开(公告)号:US08859988B1

    公开(公告)日:2014-10-14

    申请号:US14291006

    申请日:2014-05-30

    CPC classification number: B23K26/146

    Abstract: Reliable coupling of a high-power laser beam into a liquid-jet in a liquid-jet guided laser system can be achieved with high lifetime performance of the nozzle and the protection window, through setting the parameters of the liquid-jet guided laser system according to an optimum relationship that links the focus point of the laser, the focus cone angle, the laser beam energy distribution profile and the nozzle geometry.

    Abstract translation: 可以通过喷嘴和保护窗的高寿命性能实现高功率激光束在液体射流引导激光系统中的液体射流的可靠耦合,通过根据液体射流引导激光系统的参数设置 达到连接激光焦点,聚焦锥角,激光束能量分布轮廓和喷嘴几何形状的最佳关系。

    Methods and apparatus for making functional slots
    10.
    发明申请
    Methods and apparatus for making functional slots 审中-公开
    制作功能槽的方法和装置

    公开(公告)号:US20160368090A1

    公开(公告)日:2016-12-22

    申请号:US15103871

    申请日:2014-12-13

    Abstract: A liquid-jet-guided laser system can be used to generate functional slots having different depth and sidewall profiles by applying active control of laser beam parameters. Blinds slots can be processed onto a workpiece, such as a tire mold or a turbine vane, for an insertion of a sipe or a sealing element, respectively. Through slots can also be processed onto a workpiece, such as a turbine element for cooling during operation or a semiconductor wafer for singulation purpose. The processing of the workpiece can include a two-step procedure, wherein the first step comprises a pre-cut. The pre-cut cuts a contour outline of a slot onto a workpiece corresponding to an element that is to be inserted into the slot. The second step comprises a removal cut to remove excess workpiece material in between the contour outline. The liquid-jet-guided laser system can employ multiple-wavelength processing of a multiple-material workpiece.

    Abstract translation: 通过施加激光束参数的主动控制,可以使用液体喷射引导激光系统来产生具有不同深度和侧壁轮廓的功能槽。 盲孔可以被加工到诸如轮胎模具或涡轮叶片的工件上,用于分别插入刀槽花纹或密封元件。 通过槽也可以被加工到工件上,例如用于在运行期间冷却的涡轮机元件或用于分离目的的半导体晶片。 工件的加工可以包括两步骤程序,其中第一步骤包括预切割。 预切割将槽的轮廓轮廓切割成与要插入到槽中的元件相对应的工件上。 第二步包括去除切割以在轮廓轮廓之间移除多余的工件材料。 液体喷射引导激光系统可以采用多材料工件的多波长加工。

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