METHOD OF STRENGTHENING THROUGH REAL-TIME COUPLING OF ELECTRICAL PULSES AND LASER SHOCK WAVES

    公开(公告)号:US20240261903A1

    公开(公告)日:2024-08-08

    申请号:US18034079

    申请日:2022-07-26

    摘要: A method of strengthening through real-time coupling of electrical pulses and laser shock waves is provided. The initial time and duration of the electrical pulses are controlled to be matched with the initial time and duration of the laser shock waves, so that the electrical pulses and the laser shock waves are coupled in real time for material strengthening, the plasticity and the strength of the material are greatly improved, and a large area of the workpiece is uniformly strengthened. By simultaneously introducing the electrical pulses into the pulse current-assisted LSP, a great strengthening effect is achieved through the combination of the electrical pulses and the pulse current-assisted LSP in a short time, thereby reducing the internal defects of the material to a certain extent and further increasing the fatigue life of the material.

    Method and apparatus for attaching a laser diode and a slider in an energy assisted magnetic recording head
    9.
    发明授权
    Method and apparatus for attaching a laser diode and a slider in an energy assisted magnetic recording head 有权
    用于在能量辅助磁记录头中附接激光二极管和滑块的方法和装置

    公开(公告)号:US09475151B1

    公开(公告)日:2016-10-25

    申请号:US13664271

    申请日:2012-10-30

    摘要: A method and apparatus attach a laser diode on a submount to a slider. The submount and laser diode form a submount assembly. The slider includes an air-bearing surface (ABS) and a transducer. The apparatus includes an optical fiber and a holder. The optical fiber is configured to carry a laser pulse. The holder includes a vacuum channel and an optical fiber aperture therein. A portion of the optical fiber is held in the optical fiber aperture. The vacuum channel is configured to hold the submount assembly by a pressure differential between a pressure developed in the vacuum channel and an external pressure at a remaining portion of the submount assembly. The pressure in the vacuum channel is less than the external pressure. The method holds the submount assembly in the apparatus, aligns the submount assembly to the slider and provides a laser pulse through the fiber.

    摘要翻译: 一种方法和装置将激光二极管连接到底座到滑块。 底座和激光二极管形成底座组件。 滑块包括空气轴承表面(ABS)和换能器。 该装置包括光纤和保持器。 光纤被配置为携带激光脉冲。 保持器包括真空通道和其中的光纤孔。 光纤的一部分被保持在光纤孔中。 真空通道构造成通过在真空通道中产生的压力与底座组件的剩余部分处的外部压力之间的压力差来保持副安装座组件。 真空通道中的压力小于外部压力。 该方法将底座组件保持在设备中,将底座组件对准滑块,并通过光纤提供激光脉冲。

    Laser marking method and system
    10.
    发明授权
    Laser marking method and system 有权
    激光打标方法及系统

    公开(公告)号:US09290008B1

    公开(公告)日:2016-03-22

    申请号:US13236949

    申请日:2011-09-20

    IPC分类号: B41J2/44 B41M5/26 C25D11/18

    摘要: A laser marking method and system, and laser marked object are disclosed. The method includes directing a pulsed laser beam towards an object such that an interface between an oxidized layer and non-oxidized substrate is in a mark zone of the pulsed laser beam, and scanning the pulsed laser beam across the object in a predetermined pattern to create a mark having an L value of less than 40 and a surface roughness that is substantially unchanged compared to adjacent unmarked areas. The system includes a fiber laser generating amplified pulses that are directed towards a galvo-scanner and focusing optic, while the object includes an oxidized surface layer, an underlying non-oxidized substrate, and a mark having an L value of less than 40 with substantially unchanged roughness features.

    摘要翻译: 公开了一种激光打标方法和系统以及激光标记对象。 该方法包括将脉冲激光束引向物体,使得氧化层和非氧化基底之间的界面处于脉冲激光束的标记区域,并以预定图案扫描脉冲激光束穿过物体以产生 具有小于40的L值的标记和与相邻的未标记区域相比基本上不变的表面粗糙度。 该系统包括光纤激光器,其产生朝向电流扫描器和聚焦光学元件的放大脉冲,同时物体包括氧化表面层,下面的未氧化基底和L值小于40的标记,基本上 粗糙度不变特性。