公开(公告)号：US06483578B1

公开(公告)日：2002-11-19

申请号：US09592534

申请日：2000-06-12

申请人： Allan H. Clauer ,  Steven M. Toller ,  Jeff L. Dulaney ,  David F. Lahrman

发明人： Allan H. Clauer ,  Steven M. Toller ,  Jeff L. Dulaney ,  David F. Lahrman

IPC分类号： G01J100

CPC分类号： C21D10/005 ,  G01J1/4257

摘要： A method and apparatus for measuring the quality of a laser peening process, which includes a test element, a mount for the test element, wherein the test element is mounted at a preselected point in the anticipated path of a laser pulse, the laser pulse irradiates the test element, the deflection of the test element is measured in the direction substantially perpendicular and away from the impacted surface of the test element, and the deflection measurement is compared to a previously generated chart showing the relationship between characteristics of test elements and desired material properties.

摘要翻译： 一种用于测量激光喷丸处理质量的方法和装置，其包括测试元件，用于测试元件的安装座，其中测试元件安装在激光脉冲的预期路径中的预选点处，激光脉冲照射 测试元件，测试元件的偏转在基本垂直和远离测试元件的冲击表面的方向上测量，并且将偏转测量与先前生成的图表进行比较，其中显示了测试元件和所需材料的特性之间的关系 属性。

公开(公告)号：US06875953B2

公开(公告)日：2005-04-05

申请号：US10662802

申请日：2003-09-12

申请人： Allan H. Clauer ,  David F. Lahrman ,  Jeff L. Dulaney ,  Steven M. Toller

发明人： Allan H. Clauer ,  David F. Lahrman ,  Jeff L. Dulaney ,  Steven M. Toller

IPC分类号： C21D10/00 ,  F01D5/28 ,  B23K26/00

CPC分类号： F01D5/286 ,  C21D10/005 ,  F05D2230/41 ,  Y02T50/672

摘要： Various laser shock processing methods are provided to establish selective compressive residual stress distribution profiles within a workpiece. An asymmetrical stress distribution profile may be formed through the thickness of a thin section of a gas turbine engine airfoil. One method involves simultaneously irradiating a workpiece with a set of laser beams to form a corresponding set of adjacent non-overlapping laser shock peened surfaces, enabling the shockwaves to encounter one another. Additionally, opposite sides of the workpiece may be irradiated at different times to form opposing laser shock peened surfaces, enabling the shockwaves to meet at a location apart from the mid-plane. Furthermore, opposite sides of the workpiece may be irradiated simultaneously using laser beams having different pulse lengths to form opposing laser shock peened surfaces. Moreover, opposite sides of the workpiece may be irradiated simultaneously to form a set of laterally offset laser shock peened surfaces.

摘要翻译： 提供各种激光冲击加工方法，以在工件内建立选择性压缩残余应力分布曲线。 可以通过燃气涡轮发动机翼型件的薄部分的厚度形成不对称的应力分布轮廓。 一种方法包括同时用一组激光束照射工件以形成相应的一组相邻的非重叠的激光冲击喷丸表面，使得冲击波彼此相遇。 此外，可以在不同时间照射工件的相对侧以形成相对的激光冲击喷丸表面，使得冲击波能够在远离中间平面的位置相遇。 此外，可以使用具有不同脉冲长度的激光束同时照射工件的相对侧，以形成相对的激光冲击喷丸表面。 此外，可以同时照射工件的相对侧，以形成一组横向偏移的激光冲击喷丸表面。

公开(公告)号：US06236016B1

公开(公告)日：2001-05-22

申请号：US09234381

申请日：1999-01-20

申请人： Jeff L. Dulaney ,  Allan H. Clauer ,  Steven M. Toller

发明人： Jeff L. Dulaney ,  Allan H. Clauer ,  Steven M. Toller

IPC分类号： B23K2600

CPC分类号： C22F3/00 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0648 ,  B23K26/073 ,  C21D10/005

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 &THgr; 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 &THgr; or thickness of the workpiece.

摘要翻译： 本发明涉及通过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。

公开(公告)号：US07776165B1

公开(公告)日：2010-08-17

申请号：US12201519

申请日：2008-08-29

申请人： Jeff L. Dulaney ,  Steven M. Toller ,  Allan H. Clauer

发明人： Jeff L. Dulaney ,  Steven M. Toller ,  Allan H. Clauer

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。

公开(公告)号：US06852179B1

公开(公告)日：2005-02-08

申请号：US09590866

申请日：2000-06-09

申请人： Steven M. Toller ,  Allan H. Clauer ,  Jeff L. Dulaney

发明人： Steven M. Toller ,  Allan H. Clauer ,  Jeff L. Dulaney

IPC分类号： C21D10/00 ,  C22F3/00

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。

公开(公告)号：US6144012A

公开(公告)日：2000-11-07

申请号：US964798

申请日：1997-11-05

申请人： Jeff L. Dulaney ,  Allan H. Clauer ,  Steven M. Toller

发明人： Jeff L. Dulaney ,  Allan H. Clauer ,  Steven M. Toller

IPC分类号： B23K26/073 ,  C21D10/00 ,  B23K26/00

CPC分类号： C21D10/005 ,  B23K26/073

摘要： A method of laser shock peening a workpiece including the steps of laser shock peening at least one surface of the workpiece so that it extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser shock peening extending into the workpiece from the surface, and firing a laser beam to produce the laser shock peened surface with more than one row of laser beam spots, wherein adjacent laser beam spots and/or rows are one of touching or spaced apart from each other.

摘要翻译： 一种对工件进行激光冲击硬化的方法，包括以下步骤：对工件的至少一个表面进行激光冲击硬化，使其在工件的区域上延伸，并形成具有由激光冲击喷丸延伸到工件中的压缩残余应力的区域 并且激发激光束以产生具有多于一行激光束斑点的激光冲击喷丸表面，其中相邻的激光束斑点和/或行是彼此接触或间隔开的一个。

公开(公告)号：US07470335B2

公开(公告)日：2008-12-30

申请号：US11023228

申请日：2004-12-27

申请人： Steven M. Toller ,  Allan H. Clauer ,  Jeff L. Dulaney

发明人： Steven M. Toller ,  Allan H. Clauer ,  Jeff L. Dulaney

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。

公开(公告)号：US06752593B2

公开(公告)日：2004-06-22

申请号：US10207622

申请日：2002-07-29

申请人： Allan H. Clauer ,  David F. Lahrman ,  Jeff L. Dulaney ,  Steve M. Toller

发明人： Allan H. Clauer ,  David F. Lahrman ,  Jeff L. Dulaney ,  Steve M. Toller

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。

公开(公告)号：US06548782B2

公开(公告)日：2003-04-15

申请号：US09767528

申请日：2001-01-23

申请人： Steven E. Dykes ,  Allan H. Clauer ,  Jeff L. Dulaney ,  David F. Lahrman ,  Mark O'Loughlin

发明人： Steven E. Dykes ,  Allan H. Clauer ,  Jeff L. Dulaney ,  David F. Lahrman ,  Mark O'Loughlin

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.

公开(公告)号：US20110126605A1

公开(公告)日：2011-06-02

申请号：US13023513

申请日：2011-02-08

申请人： Richard D. Tenaglia ,  Allan H. Clauer ,  Jeff L. Dulaney ,  David F. Lahrman ,  Steve Toller

发明人： Richard D. Tenaglia ,  Allan H. Clauer ,  Jeff L. Dulaney ,  David F. Lahrman ,  Steve Toller

IPC分类号： C21D7/06

CPC分类号： C21D10/005 ,  G01N3/20 ,  G01N3/62 ,  G01N2203/0248 ,  G01N2203/0664

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。