公开(公告)号：US06412331B1

公开(公告)日：2002-07-02

申请号：US09443811

申请日：1999-11-19

申请人： Allan H. Clauer ,  Craig T. Walters ,  David F. Lahrman

发明人： Allan H. Clauer ,  Craig T. Walters ,  David F. Lahrman

IPC分类号： G01L500

CPC分类号： G01L5/0052 ,  B23K26/03 ,  B23K26/356 ,  C21D10/005

摘要： An apparatus for measuring the strength of a pressure pulse created from a laser peening device. The apparatus is reusable, and includes a pressure-sensitive medium, a back-up disk, and a cap, all disposed within a housing having a removable lid. All components of the apparatus are replaceable, thereby allowing an operator to utilize the apparatus more than once despite the harsh environment of laser peening.

摘要翻译： 一种用于测量由激光喷丸装置产生的压力脉冲的强度的装置。 该装置是可重复使用的，并且包括压敏介质，备用盘和盖，全部设置在具有可拆卸盖的壳体内。 该装置的所有部件都是可更换的，从而允许操作者尽管激光喷丸的恶劣环境不止一次地利用该装置。

公开(公告)号：US06539773B2

公开(公告)日：2003-04-01

申请号：US09883712

申请日：2001-06-18

申请人： Allan H. Clauer ,  Craig T. Walters ,  David F. Lahrman

发明人： Allan H. Clauer ,  Craig T. Walters ,  David F. Lahrman

IPC分类号： G01L500

CPC分类号： G01L5/0052 ,  B23K26/03 ,  B23K26/356 ,  C21D10/005

摘要： An apparatus for measuring the strength of a pressure pulse created from a laser peening device. The apparatus is reusable, and includes a pressure-sensitive medium, a back-up disk, and a cap, all disposed within a housing having a removable lid. All components of the apparatus are replaceable, thereby allowing an operator to utilize the apparatus more than once despite the harsh environment of laser peening.

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。

公开(公告)号：US06664506B2

公开(公告)日：2003-12-16

申请号：US10207560

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： B23K2600

CPC分类号： F01D5/286 ,  B23K26/0622 ,  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 midplane. 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：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：US06462308B1

公开(公告)日：2002-10-08

申请号：US09448683

申请日：1999-11-23

申请人： David F. Lahrman ,  Allan H. Clauer

发明人： David F. Lahrman ,  Allan H. Clauer

IPC分类号： B23K2600

CPC分类号： B23K26/03 ,  C21D10/005 ,  G01N29/2418 ,  G01N2291/014 ,  G01N2291/2693

摘要： An apparatus and method of utilizing natural frequency shifts of a laser shock processed workpiece to determine if sufficient laser shock processing has been accomplished.

摘要翻译： 利用激光冲击处理的工件的固有频移来确定是否已经实现了足够的激光冲击处理的装置和方法。

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：US07906745B2

公开(公告)日：2011-03-15

申请号：US11009123

申请日：2004-12-10

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： B23K26/00

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。

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。