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公开(公告)号：US07776165B1
公开(公告)日：2010-08-17
申请号：US12201519
申请日：2008-08-29
IPC分类号： C21D1/09
CPC分类号： C22F3/00 , C21D10/005 , C21D2261/00 , Y10T428/12493
摘要： A method of manufacturing a workpiece involves performing any one of various post-processing part modification steps on a workpiece that has been previously subjected to laser shock processing. In one step, material is removed from the compressive residual stress region of the processed workpiece. Alternately, the workpiece may be provided with oversized dimensions such that the removal process removes an amount of material sufficient to generate a processed workpiece having dimensions substantially conforming to design specifications. Alternately, the material removal process is adapted to establish a penetration depth for material removal that coincides with the depth at which the workpiece exhibits maximum compressive residual stress. Alternately, a first high-intensity laser shock processing treatment is performed on the workpiece, followed by the removal of material from the compressive residual stress region, and then a second low-intensity laser shock processing treatment is performed on the workpiece. Material may be removed from the compressive residual stress region through a workpiece surface different from the laser shock processed surface. Material may also be deposited onto the laser shock processed surface.
摘要翻译： 制造工件的方法涉及对先前已进行了激光冲击加工的工件进行各种后处理零件修改工序中的任一种。 在一个步骤中，材料从加工的工件的压缩残余应力区域移除。 替代地，工件可以设置有尺寸过大的尺寸，使得去除工艺去除足以产生具有基本上符合设计规格的尺寸的加工工件的材料量。 替代地，材料去除过程适于建立与工件表现出最大压缩残余应力的深度一致的材料去除的穿透深度。 或者，对工件进行第一次高强度激光冲击加工处理，然后从压缩残余应力区域去除材料，然后对工件进行第二次低强度激光冲击加工处理。 材料可以通过不同于激光冲击处理表面的工件表面从压缩残余应力区域移除。 材料也可以沉积到激光冲击处理的表面上。
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公开(公告)号：US06852179B1
公开(公告)日：2005-02-08
申请号：US09590866
申请日：2000-06-09
CPC分类号： C22F3/00 , C21D10/005 , C21D2261/00 , Y10T428/12493
摘要： A method of manufacturing a workpiece involves performing any one of various post-processing part modification steps on a workpiece that has been previously subjected to laser shock processing. In one step, material is removed from the compressive residual stress region of the processed workpiece. Alternately, the workpiece may be provided with oversized dimensions such that the removal process removes an amount of material sufficient to generate a processed workpiece having dimensions substantially conforming to design specifications. Alternately, the material removal process is adapted to establish a penetration depth for material removal that coincides with the depth at which the workpiece exhibits maximum compressive residual stress. Alternately, a first high-intensity laser shock processing treatment is performed on the workpiece, followed by the removal of material from the compressive residual stress region, and then a second low-intensity laser shock processing treatment is performed on the workpiece. Material may be removed from the compressive residual stress region through a workpiece surface different from the laser shock processed surface. Material may also be deposited onto the laser shock processed surface.
摘要翻译： 制造工件的方法涉及对先前已进行了激光冲击加工的工件进行各种后处理零件修改工序中的任一种。 在一个步骤中，材料从加工的工件的压缩残余应力区域移除。 替代地，工件可以设置有尺寸过大的尺寸，使得去除工艺去除足以产生具有基本上符合设计规格的尺寸的加工工件的材料量。 替代地，材料去除过程适于建立与工件表现出最大压缩残余应力的深度一致的材料去除的穿透深度。 或者，对工件进行第一次高强度激光冲击加工处理，然后从压缩残余应力区域去除材料，然后对工件进行第二次低强度激光冲击加工处理。 材料可以通过不同于激光冲击处理表面的工件表面从压缩残余应力区域移除。 材料也可以沉积到激光冲击处理的表面上。
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3.发明授权Articles having improved residual stress profile characteristics produced by laser shock peening 失效具有由激光冲击硬化产生的具有改善的残余应力分布特征的制品公开(公告)号：US06752593B2
公开(公告)日：2004-06-22
申请号：US10207622
申请日：2002-07-29
IPC分类号： F01D514
CPC分类号： C21D10/005 , C21D2221/00 , F01D5/286 , Y02T50/672
摘要： Articles produced by laser shock processing exhibit various compressive residual stress distribution profiles. A gas turbine engine airfoil includes an asymmetrical stress profile formed through the thickness of its thin section. The articles include plural laser shock peened surfaces and plural regions having deep compressive residual stresses imparted by laser shock peening extending into the article from the laser peened surfaces. One article includes at least one set of simultaneously formed, adjacent non-overlapping laser shock peened surfaces. Another article includes at least one set of opposing laser shock peened surfaces formed at different times at opposite sides of the article. Another article includes at least one set of opposing laser shock peened surfaces formed simultaneously at opposite sides of the article using laser beams having different pulse lengths. Another article includes at least one set of laterally offset laser shock peened surfaces simultaneously formed at opposite sides of the article.
摘要翻译： 通过激光冲击加工制造的制品表现出各种压缩残余应力分布曲线。 燃气涡轮发动机翼型件包括通过其薄部分的厚度形成的不对称应力分布。 这些物品包括多个激光冲击硬化表面和具有从激光喷丸表面延伸到制品中的由激光冲击喷丸赋予的深压缩残余应力的多个区域。 一个物品包括至少一组同时形成的相邻的不重叠的激光冲击喷丸表面。 另一个物品包括在物品的相对侧上的不同时间形成的至少一组相对的激光冲击硬化表面。 另一个物品包括使用具有不同脉冲长度的激光束同时在物品的相对侧形成的至少一组相对的激光冲击硬化表面。 另一个物品包括同时形成在物品的相对两侧的至少一组横向偏移的激光冲击喷丸表面。
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公开(公告)号：US06548782B2
公开(公告)日：2003-04-15
申请号：US09767528
申请日：2001-01-23
IPC分类号： B23K2600
CPC分类号： B23K26/032 , B23K26/009 , B23K26/18 , C21D10/005 , C21D2221/00
摘要： A method of controlling the application of laser peening overlays on the surface of a workpiece to reduce the variability of shock waves generated therein, comprises applying an energy-absorbing overlay to a portion of the surface of a workpiece, measuring the thickness of the energy-absorbing overlay in at least one location on the energy-absorbing overlay, applying a transparent overlay material over the energy-absorbing overlay, measuring the thickness of the transparent overlay in at least one location on the transparent overlay, determining if the measured values for each overlay is within a specified range, and directing a pulse of coherent energy to the workpiece to create a shock wave therein when the measured values are within the specified range.
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5.发明授权Peening process with reduction of dielectric breakdown to increase peak pressure pulse 失效硬化过程中减少了介质击穿以增加峰值压力脉冲
公开(公告)号：US6057003A
公开(公告)日：2000-05-02
申请号：US874174
申请日：1997-06-13
申请人： Jeff L. Dulaney , Allan H. Clauer , David W. Sokol
发明人： Jeff L. Dulaney , Allan H. Clauer , David W. Sokol
CPC分类号： B05D3/06 , B05D3/12 , B23K26/009 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/18 , C21D10/005 , C21D7/06
摘要： The present invention provides a method of laser shock processing that can be used in a production environment that increases the peak pressure of the shock wave applied to the workpiece that increases residual compresses stresses therein. Such improvement is created by a reduction of dielectric breakdown of the transparent overlay layer utilized.The method includes the steps of applying a transparent overlay such as water over the workpiece and reducing or limiting the thickness of the transparent overlay material. An alternate embodiment of the invention to reduce dielectric breakdown incorporates the use of a changing or circularly polarized laser beam as opposed to a linearly polarized laser beam.
摘要翻译： 本发明提供一种激光冲击加工方法，其可用于增加施加到工件上的冲击波的峰值压力以增加其中的残余压缩应力的生产环境。 这种改进是通过减少所使用的透明覆盖层的介电击穿而产生的。 该方法包括以下步骤：在工件上施加诸如水的透明覆层，并减少或限制透明覆盖材料的厚度。 本发明的减少电介质击穿的替代实施例包括与线偏振激光束相反的改变或圆偏振激光束的使用。
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公开(公告)号：US5911891A
公开(公告)日：1999-06-15
申请号：US927716
申请日：1997-09-11
申请人： Jeff L. Dulaney , Allan H. Clauer , David W. Sokol
发明人： Jeff L. Dulaney , Allan H. Clauer , David W. Sokol
CPC分类号： B23K26/0069 , B23K26/06 , C21D10/005
摘要： Method of changing the residual compressive stresses of an area of a workpiece by tailoring multiple laser beams applied to the workpiece. In one embodiment, a relatively long duration laser pulse is applied to the workpiece followed by a relatively short duration laser pulse. Other tailoring embodiments used to increase the total residual compressive stress of workpieces include blending two laser pulses, or splicing them utilizing a first short sliced-type beam combined with a relatively long duration, high powered gaussian laser beam pulse. A third embodiment utilizes two or more laser beams or pulses of different wavelengths.
摘要翻译： 通过调整施加到工件上的多个激光束来改变工件区域的残余压应力的方法。 在一个实施例中，将相对长的持续时间的激光脉冲施加到工件，随后是相对短的持续时间的激光脉冲。 用于增加工件的总剩余压缩应力的其他剪裁实施例包括混合两个激光脉冲，或者使用与较长持续时间的高功率高斯激光束脉冲结合的第一短切片型光束来对它们进行拼接。 第三实施例使用两个或更多个不同波长的激光束或脉冲。
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公开(公告)号：US10048494B2
公开(公告)日：2018-08-14
申请号：US14554011
申请日：2014-11-25
IPC分类号： G01N29/04 , G02B27/00 , G02B1/11 , G01N19/04 , B23K26/142 , G01N29/24 , B23K26/16 , G02B1/18 , B23K26/146 , G01N21/84
摘要： Methods, systems, and apparatuses are disclosed for the protection of optical components used during laser bond inspection. In one embodiment, an optic surface wetting enhancement is provided on a protective optic to assist in forming a substantially flat film of transparent liquid from transparent liquid applied to a surface of a protective optic. A flat film of transparent liquid on a surface of a protective optic may be used to retain debris and effluent backscatter produced during a laser bond inspection process.
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公开(公告)号：US09878398B2
公开(公告)日：2018-01-30
申请号：US14541140
申请日：2014-11-13
申请人： Gary J. May , Jeff L. Dulaney , Keith Glover
发明人： Gary J. May , Jeff L. Dulaney , Keith Glover
IPC分类号： B23K26/00 , B23K26/06 , B23K26/08 , C21D10/00 , B23K26/356 , B23K26/0622
CPC分类号： B23K26/0884 , B23K26/0624 , B23K26/356 , C21D10/005
摘要： Methods, systems, and apparatuses are disclosed for automated dynamic laser peening of a workpiece. In one embodiment, a system for automated dynamic laser peening of a workpiece comprises: a laser; a laser beam delivery system; and a dynamic platform system.
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9.再颁专利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：USRE43176E1
公开(公告)日：2012-02-14
申请号：US12013024
申请日：2008-01-11
IPC分类号： B23K26/00
CPC分类号： B23K26/18 , B23K26/009 , B23K26/356 , C21D10/005
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。
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10.发明申请Laser Peening Process and Apparatus Using a Liquid Erosion-Resistant Opaque Overlay Coating 审中-公开激光喷丸工艺和使用液体防腐涂料的不透明涂料公开(公告)号：US20110132886A1
公开(公告)日：2011-06-09
申请号：US12962535
申请日：2010-12-07
IPC分类号： B23K26/00
CPC分类号： B23K26/18 , B23K26/009 , B23K26/356 , C21D10/005
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。
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