Apparatus for laser peening hidden surfaces

    公开(公告)号:US11433476B2

    公开(公告)日:2022-09-06

    申请号:US16391593

    申请日:2019-04-23

    摘要: A laser shock peening apparatus is provided for use with a workpiece having a cavity. The apparatus includes a tubular body configured for insertion longitudinally inward of the cavity. The tubular body has a peripheral wall bounding a laser delivery channel, and has an aperture reaching outward from the laser delivery channel through the peripheral wall. An optical device is located in the laser delivery channel. The optical device is configured to direct a laser beam outward through the aperture. Additionally, the peripheral wall has internal surfaces defining a water delivery channel configured to convey a stream of overlay water to the aperture.

    Methods, systems, and apparatuses for laser shock peening metal materials
    5.
    发明授权
    Methods, systems, and apparatuses for laser shock peening metal materials 有权
    用于激光冲击硬化金属材料的方法,系统和装置

    公开(公告)号:US09227268B1

    公开(公告)日:2016-01-05

    申请号:US12059218

    申请日:2008-03-31

    IPC分类号: B23K26/02 B23K26/00 B23K26/08

    摘要: Methods, systems, and apparatuses are disclosed for improving fatigue strength and damage tolerance of metal materials. For example, a system is provided for laser shock peening a metal material, the system comprising: a momentum trap material; a laser; an actuator, capable of pressing the momentum trap material into intimate contact with a first side of the metal material; and an advancer, capable of advancing the momentum trap material relative to the first side of the metal material.

    摘要翻译: 公开了用于改善金属材料的疲劳强度和损伤容限的方法,系统和装置。 例如,提供一种用于激光冲击硬化金属材料的系统,该系统包括:动量捕获材料; 雷射; 致动器,其能够将动量捕获材料按压与金属材料的第一侧紧密接触; 和推进器,其能够相对于金属材料的第一侧推进动量收集材料。

    BEND BAR QUALITY CONTROL METHOD FOR LASER SHOCK PEENING
    6.
    发明申请
    BEND BAR QUALITY CONTROL METHOD FOR LASER SHOCK PEENING 审中-公开
    用于激光冲击的弯杆质量控制方法

    公开(公告)号:US20110126605A1

    公开(公告)日:2011-06-02

    申请号:US13023513

    申请日:2011-02-08

    IPC分类号: C21D7/06

    摘要: A bend bar is available for use in a quality control test for testing for a consistency of residual stress effects in a particular material using a given a laser peening process. The bar is composed of the particular material to be tested and has a bar length and a bar thickness. The particular material has a characteristic maximum stress penetration depth for compressive residual stresses that can be formed in using the given laser peening process. The bar thickness is chosen so as to be at least twice the characteristic maximum stress penetration depth. The bar has a test surface that extends parallel to the bar length and perpendicular to the bar thickness. After forming a spot pattern on the test surface using the given laser peening process, the deflection generated in the bar due to the compressive residual stresses induced by laser peening can then be measured and used as a quality control measurement.

    摘要翻译: 弯曲杆可用于质量控制测试,用于使用给定的激光喷丸处理来测试特定材料中的残余应力效应的一致性。 该棒由待测试的特定材料组成,具有棒长度和棒厚度。 特定材料具有特定的最大应力穿透深度,用于在使用给定的激光喷丸处理过程中形成的压缩残余应力。 选择棒厚度至少是特征最大应力穿透深度的两倍。 棒具有平行于棒长度并垂直于棒厚度的测试表面。 在使用给定的激光喷丸处理方法在测试表面上形成斑点图案之后,可以测量由于激光喷丸处理引起的压缩残余应力而在棒中产生的偏转并用作质量控制测量。

    Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating
    7.
    发明申请
    Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating 有权
    激光喷丸处理和使用耐液体侵蚀的不透明覆盖涂层的设备

    公开(公告)号:US20050045607A1

    公开(公告)日:2005-03-03

    申请号:US10654369

    申请日:2003-09-02

    IPC分类号: B23K26/18 C21D10/00 B23K26/00

    摘要: The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves there through. Laser shock processing is used to provide the shockwaves. The method includes applying a liquid energy-absorbing overlay, which is resistant to erosion and dissolution by the transparent water overlay and which is resistant to drying to a portion of the surface of the solid material and then applying a transparent overlay to the coated portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. Advantageously, at least a portion of the unspent energy-absorbing overlay can be reused in situ at a further laser treatment location and/or recovered for later use.

    摘要翻译: 本发明涉及通过在那里提供冲击波来改善固体材料性能的方法和装置。 激光冲击加工用于提供冲击波。 该方法包括施加液体能量吸收覆盖层,该覆盖层具有抵抗透湿水覆盖层的侵蚀和溶解的作用,并且能够抵抗固体材料表面的一部分的干燥,然后将透明覆盖层施加到 固体材料。 相干激光能量的脉冲被引导到固体材料的涂覆部分以产生冲击波。 有利地,未使用的能量吸收覆盖层的至少一部分可以在另外的激光治疗位置原位再利用和/或回收以供以后使用。

    UV curable overlays for laser peening

    公开(公告)号:US20040011774A1

    公开(公告)日:2004-01-22

    申请号:US10372520

    申请日:2003-02-21

    IPC分类号: B23K026/00

    摘要: A method and apparatus for increasing the effectiveness and efficiency of laser shock processing of a solid material. The method includes applying an energy absorbing coating to a portion of the surface of a solid material, applying an ultraviolet curable resin to the coated portion of the surface of the solid material, applying an ultraviolet light to the curable resin to form a pellicle over the energy absorbing coating on the surface of the solid material, and applying a transparent overlay to the pellicular portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. After the pulse of coherent energy is directed to the solid material, a high-speed jet of fluid may be directed to the coated portion of the solid material to remove the remaining coating from the solid material.

    Oblique angle laser shock processing
    9.
    发明申请
    Oblique angle laser shock processing 失效
    斜角激光冲击加工

    公开(公告)号:US20020000428A1

    公开(公告)日:2002-01-03

    申请号:US09861419

    申请日:2001-05-18

    IPC分类号: B23K026/00

    摘要: The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves therethrough. The method includes controlling the incident angle null of the laser beam applied to the workpiece so that the required residual stresses are created in the workpiece. Particular methods of control such as lenses, polarizers, and particular transparent overlay geometries are shown. The apparatus includes structure for controlling the position and incident angle of the laser beam then controlling the polarization and/or the shape of the incident impact area, based on such incident angle null or thickness of the workpiece.

    摘要翻译: 本发明涉及通过提供通过其提供冲击波来改善固体材料性能的方法和装置。 该方法包括控制入射角&THgr; 的激光束施加到工件上,使得在工件中产生所需的残余应力。 示出了诸如透镜,偏振器和特定的透明覆盖几何形状的特定的控制方法。 该装置包括用于基于这样的入射角度控制激光束的位置和入射角然后控制入射冲击区域的偏振和/或形状的结构。 或工件的厚度。