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1. 发明授权

US5216808A Method for making or repairing a gas turbine engine component 失效
标题翻译：制造或修理燃气涡轮发动机部件的方法
公开(公告)号：US5216808A
公开(公告)日：1993-06-08
申请号：US806745
申请日：1991-12-13
申请人： James A. Martus , Paul P. Mehta , Seetharamaiah Mannava
发明人： James A. Martus , Paul P. Mehta , Seetharamaiah Mannava
IPC分类号： B23K26/40 , F01D5/28
CPC分类号： F01D5/288 , B23K26/032 , B23K26/0622 , B23K26/389 , B23K26/40 , B23P6/002 , F01D5/286 , B23K2203/52 , B23P2700/06 , Y10T29/49318 , Y10T29/4932 , Y10T29/49337
摘要： A method for making or repairing a gas turbine engine component includes the step of directing a pulsed ultra-violet laser beam on a location of a film cooling hole after application of a thermal barrier coating to athermally remove any coating material which may be obstructing the cooling hole without damaging the engine component or removing any of the coating from the surface of the component around the cooling hole.
摘要翻译：一种用于制造或修理燃气涡轮发动机部件的方法包括在施加热障涂层之后将脉冲紫外激光束引导到膜冷却孔的位置上以自动去除可能阻碍冷却的任何涂层材料的步骤而不会损坏发动机部件或者从冷却孔周围的部件的表面去除任何涂层。

2. 发明授权

US06570126B2 Simultaneous offset dual sided laser shock peening using low energy laser beams 失效
公开(公告)号：US06570126B2
公开(公告)日：2003-05-27
申请号：US09945191
申请日：2001-08-31
申请人： Ui Won Suh , Seetharamaiah Mannava , Todd Jay Rockstroh
发明人： Ui Won Suh , Seetharamaiah Mannava , Todd Jay Rockstroh
IPC分类号： B23K2600
CPC分类号： C21D10/005 , F01D5/286
摘要： A method for laser shock peening an article by simultaneously firing low energy first and second laser beams to form pairs of longitudinally spaced apart first and second laser shock peened spots that are on opposite sides of the article, simultaneously laser shock peened, and transversely offset from each other. Each of the low energy first and second laser beams having a level of energy of between 1-10 joules.

3. 发明授权

US06341936B1 FOD inspection of laser shock peened gas turbine engine airfoils 失效
标题翻译：激光冲击喷丸机燃气涡轮发动机翼型FOD检测
公开(公告)号：US06341936B1
公开(公告)日：2002-01-29
申请号：US09556713
申请日：2000-04-21
申请人： William D. Cowie , Seetharamaiah Mannava , Jeffrey H. Nussbaum
发明人： William D. Cowie , Seetharamaiah Mannava , Jeffrey H. Nussbaum
IPC分类号： F01D514
CPC分类号： F01D21/14 , B23K26/356 , B23K2101/001 , B23P6/002 , C21D10/005 , F01D5/005 , F01D5/14 , F01D21/003 , F05D2260/80 , Y10T29/49318 , Y10T29/49336
摘要： The present invention is a method for operating a gas turbine engine airfoil having leading and trailing edges subject to FOD (foreign object damage) damage. The method includes inspecting the airfoil along at least a first one of the edges having at least a first laser shock peened patch along the first one of the edges, ascertaining FOD lengths of foreign object damage (FOD) extending from the first one of the edges into the airfoil within the patch, and allowing the airfoil to remain in service without repair if the FOD lengths are up to a maximum length of about one-half of a width of the laser shock peened patch, as measured from the edge.
摘要翻译：本发明是用于操作具有受FOD（异物损坏）损坏的前缘和后缘的燃气涡轮发动机翼型的方法。该方法包括沿至少第一边缘检查翼型件，其中至少第一边缘具有沿着第一边缘的至少第一激光冲击喷丸块，确定从第一边缘延伸的异物损坏（FOD）的FOD长度如果从边缘测量的FOD长度达到激光冲击喷丸补片的宽度的大约二分之一的最大长度，则允许翼型件保持在维修中。

4. 发明授权

US5584586A Laser shock peened bearings 失效
标题翻译：激光冲击喷丸轴承
公开(公告)号：US5584586A
公开(公告)日：1996-12-17
申请号：US610298
申请日：1996-03-04
申请人： Dominick A. Casarcia , William D. Cowie , Seetharamaiah Mannava
发明人： Dominick A. Casarcia , William D. Cowie , Seetharamaiah Mannava
IPC分类号： C21D10/00 , F16C33/30 , F16C33/62 , F16C33/64
CPC分类号： C21D10/005 , F16C33/30 , F16C33/62 , F16C33/64 , F16C2360/23
摘要： A bearing element having a metallic body with a bearing contact curved surface portion, at least one laser shock peened surface encompassing at least a portion of the contact surface portion, and a region having deep compressive residual stresses imparted by laser shock peening (LSP) extending into the body from the laser shock peened surface. The present invention may be used for rolling elements such as ball bearing elements or elongated roller elements and for static elements such as races which may be singular or split and may have circumferentially spaced oil feed passages radially disposed therethrough.
摘要翻译：一种具有金属体的轴承元件，具有轴承接触弯曲表面部分，至少一个包围接触表面部分的至少一部分的激光冲击硬化表面以及具有由激光冲击喷丸（LSP）延伸的深度压缩残余应力的区域从激光冲击硬化表面进入身体。本发明可以用于诸如滚珠轴承元件或细长滚子元件之类的滚动元件，并且可用于诸如可以是单独的或分开的的种类的静态元件，并且可以具有径向设置在其中的周向隔开的供油通道。

5. 发明授权

US06183882B2 In plane deflection coupon for monitoring and controlling of laser shock peening 失效
标题翻译：用于监测和控制激光冲击喷丸的平面偏转试样
公开(公告)号：US06183882B2
公开(公告)日：2001-02-06
申请号：US09106320
申请日：1998-06-29
申请人： Seetharamaiah Mannava , William D. Cowie , P. Kennard Wright, III , Robert D. McClain
发明人： Seetharamaiah Mannava , William D. Cowie , P. Kennard Wright, III , Robert D. McClain
IPC分类号： B23K2600
CPC分类号： C21D10/005 , Y10S148/903 , Y10T428/12486
摘要： A test coupon is formed from a metallic strip having opposite first and second sides that generally define a plane of the strip and the strip includes a laser shock peened patch of the strip that has first and second laser shock peened surfaces on the first and second sides, respectively, first and second laser shocked regions having deep compressive residual stresses imparted by the laser shock peening extending into the strip from the first and second laser shock peened surfaces, respectively, and a deflection of a portion of the strip from a position of the portion before the laser shock peening. The deflection is formed by the laser shock peening such that at least a part and preferably substantially all of the deflection lies in the plane and the test coupon preferably includes an indicating means to indicate the deflection.
摘要翻译：测试试样由具有相反的第一和第二侧的金属带形成，其通常限定条带的平面，并且条带包括条带的激光冲击喷丸贴片，其在第一和第二侧上具有第一和第二激光冲击喷丸表面分别具有由激光冲击喷丸赋予的深压缩残余应力的第一激光冲击区域和第二激光冲击区域分别从第一和第二激光冲击喷丸表面延伸到条带中，并且一部分条带从激光冲击硬化之前的部分。通过激光冲击喷丸形成偏转，使得至少一部分，优选基本上全部的偏转位于平面中，并且测试试样优选地包括指示装置以指示偏转。

6. 发明授权

US5951790A Method of monitoring and controlling laser shock peening using an in plane deflection test coupon 失效
标题翻译：使用平面偏转测试试样监测和控制激光冲击喷丸的方法
公开(公告)号：US5951790A
公开(公告)日：1999-09-14
申请号：US107196
申请日：1998-06-26
申请人： Seetharamaiah Mannava , William D. Cowie , P. Kennard Wright, III , Robert D. McClain
发明人： Seetharamaiah Mannava , William D. Cowie , P. Kennard Wright, III , Robert D. McClain
IPC分类号： C21D10/00 , C21D1/54
CPC分类号： C21D10/005 , Y10S148/90 , Y10S148/903
摘要： A method for quality assurance of a laser process and more particularly a laser shock peening process that uses a test coupon having a deflection formed by a laser firing. The test coupon is from a metallic strip having opposite first and second sides that generally define a plane of the strip and the strip includes a laser shock peened patch of the strip that has first and second laser shock peened surfaces on the first and second sides, respectively, first and second laser shocked regions having deep compressive residual stresses imparted by the laser shock peening extending into the strip from the first and second laser shock peened surfaces, respectively, and a deflection of a portion of the strip from a position of the portion before the laser shock peening. The deflection is formed by the laser shock peening such that at least a part and preferably substantially all of the deflection lies in the plane of the strip and the test coupon preferably includes an indicating means to indicate the deflection. The quality assurance process of the present invention may further include correlating high cycle fatigue to the deflection.
摘要翻译：一种用于激光工艺的质量保证的方法，更具体地说是使用具有通过激光烧制形成的偏转的试样的激光冲击硬化工艺。试样来自具有相反的第一和第二侧的金属条，其通常限定条带的平面，并且条带包括条的激光冲击喷丸补片，其在第一和第二侧上具有第一和第二激光冲击硬化表面，分别具有由激光冲击喷丸赋予的深压缩残余应力的第一和第二激光冲击区域分别从第一和第二激光冲击喷丸表面延伸到条带中，并且一部分条带从该部分的位置偏转之前激光冲击硬化。通过激光冲击喷丸形成偏转，使得至少一部分并且优选地基本上全部的偏转位于条的平面中，并且试样优选地包括指示装置以指示偏转。本发明的质量保证过程还可以包括将高循环疲劳与偏转相关联。

7. 发明授权

US5759640A Method for forming a thermal barrier coating system having enhanced spallation resistance 失效
标题翻译：形成具有增强的耐剥落性的热障涂层体系的方法
公开(公告)号：US5759640A
公开(公告)日：1998-06-02
申请号：US777181
申请日：1996-12-27
申请人： Seetharamaiah Mannava , Antonio F. Maricocchi , Andi K. Bartz
发明人： Seetharamaiah Mannava , Antonio F. Maricocchi , Andi K. Bartz
IPC分类号： C23C4/02 , B05D3/00
CPC分类号： C23C4/02
摘要： A method of forming a thermal barrier coating on an article designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method is particularly directed to increasing spallation resistance of thermal barrier coatings composed of an aluminum-containing bond coat formed on the surface of an article, and an insulating ceramic layer overlaying the bond coat. Processing steps include forming the bond coat on the surface of the article, and then treating the surface of the bond coat with laser energy so as to form a diffusion barrier layer of alumina. Thereafter, a ceramic material is deposited on the surface of the diffusion barrier layer so as to form the insulating ceramic layer. A preferred technique for the treating step is to scan the surface of the bond coat with an ultraviolet laser beam characterized by an appropriate beam geometry and fluence to yield the desired diffusion barrier layer.
摘要翻译：在设计用于恶劣热环境（例如燃气涡轮发动机的涡轮机，燃烧器和增压器部件）中的物品上形成热障涂层的方法。该方法特别涉及增加由形成在制品表面上的含铝粘合剂涂层和覆盖粘合涂层的绝缘陶瓷层构成的隔热涂层的抗剥落性。加工步骤包括在制品的表面上形成粘合涂层，然后用激光能量处理粘合涂层的表面，以形成氧化铝的扩散阻挡层。此后，在扩散阻挡层的表面上淀积陶瓷材料，形成绝缘陶瓷层。用于处理步骤的优选技术是用特征在于适当的光束几何形状和能量密度的紫外激光束扫描粘合涂层的表面以产生所需的扩散阻挡层。

8. 发明授权

US5674328A Dry tape covered laser shock peening 失效
标题翻译：干磁带覆盖激光冲击硬化
公开(公告)号：US5674328A
公开(公告)日：1997-10-07
申请号：US638622
申请日：1996-04-26
申请人： Seetharamaiah Mannava , Robert L. Yeaton , Albert E. McDaniel
发明人： Seetharamaiah Mannava , Robert L. Yeaton , Albert E. McDaniel
IPC分类号： B23K26/00 , C21D7/06 , C21D10/00 , C22F3/00 , C23C26/00 , C21D1/09
CPC分类号： C21D10/005 , C21D7/06 , Y10S148/903
摘要： A method of laser shock peening a metallic part by firing a laser on a laser shock peening surface of the part which has been adhesively covered by tape having an ablative medium, preferably, a self adhering tape with an adhesive layer on one side of an ablative layer and a confinement medium without flowing a confinement curtain of fluid over the surface upon which the laser beam is firing. Continuous movement is provided between the part and the laser beam while continuously firing the laser beam, which repeatably pulses between relatively constant periods, on a laser shock peening surface of the part. Using a laser beam with sufficient power to vaporize the ablative medium so that the pulses form laser beam spots on the surface and a region having deep compressive residual stresses imparted by the laser shock peening process extending into the part from the surface. The confinement medium may be supplied by a single layer of tape having a clear layer over the ablative layer or a thicker lap or thickness of laps of a tape with just an ablative layer wherein the extra thickness provides the confinement medium.
摘要翻译：一种激光冲击硬化金属部件的方法，其通过在已经被具有烧蚀介质的带粘合地覆盖的部分的激光冲击硬化表面上激发激光，优选地，具有在烧蚀的一侧上的粘合剂层的自粘带层和限制介质，而不会在激光束射出的表面上流动流体的限制帘。在部件和激光束之间提供连续运动，同时在激光冲击硬化表面上连续点火激光束，该激光束在相对恒定的周期之间重复地脉冲。使用具有足够功率的激光束来蒸发烧蚀介质，使得脉冲在表面上形成激光束斑点，并且具有由激光冲击喷丸处理赋予的具有深度压缩残余应力的区域从表面延伸到部件中。约束介质可以由具有清除层的单层带提供，或者较薄的搭接层或厚度的条带，仅具有消融层，其中额外的厚度提供限制介质。

9. 发明授权

US5584662A Laser shock peening for gas turbine engine vane repair 失效
标题翻译：用于燃气轮机发动机叶片修复的激光冲击喷丸
公开(公告)号：US5584662A
公开(公告)日：1996-12-17
申请号：US399321
申请日：1995-03-06
申请人： Seetharamaiah Mannava , Stephen J. Ferrigno
发明人： Seetharamaiah Mannava , Stephen J. Ferrigno
IPC分类号： B23P6/00 , C21D7/06 , C21D10/00 , F01D5/00 , F01D5/14 , F01D9/02
CPC分类号： B23P6/007 , C21D10/005 , F01D5/005 , C21D10/00 , C21D7/06 , Y10S148/903 , Y10T29/49318 , Y10T29/49336
摘要： A wide gap braze repair, particularly for a gas turbine engine vane or a component in the hot section of the engine. The repair is characterized by a braze filled void in a damaged area of the component, a laser shock peened surface over the repaired area of the braze filled void, and a region of deep compressive residual stresses imparted by laser shock peening (LSP) extending from the laser shock peened surface into the repair.
摘要翻译：特别是用于燃气涡轮发动机叶片或发动机热段中的部件的宽间隙钎焊修复。该修复的特征在于部件的损坏区域中的钎焊填充空隙，在钎焊填充空隙的修复区域上的激光冲击硬化表面以及由激光冲击喷丸（LSP）延伸的深度压缩残余应力的区域激光冲击喷丸表面进行修补。

10. 发明授权

US06551064B1 Laser shock peened gas turbine engine intermetallic parts 失效
标题翻译：激光冲击喷丸机燃气涡轮发动机金属间零件
公开(公告)号：US06551064B1
公开(公告)日：2003-04-22
申请号：US08686630
申请日：1996-07-24
申请人： Seetharamaiah Mannava , William D. Cowie
发明人： Seetharamaiah Mannava , William D. Cowie
IPC分类号： B63H126
CPC分类号： F01D5/286 , C21D10/005 , Y02T50/671 , Y02T50/673 , Y10T29/49336
摘要： An intermetallic article such as a gas turbine engine component and method of manufacture thereof includes a region having compressive residual stresses imparted by laser shock peening (LSP) extending into the article from a laser shock peened surface. One embodiment includes a turbine or compressor blade with an intermetallic airfoil having a leading edge and at least one laser shock peened surface extending radially along at least a portion of the leading edge with a region having compressive residual stresses imparted by laser shock peening (LSP) extending into the intermetallic airfoil from the laser shock peened surface.
摘要翻译：诸如燃气涡轮发动机部件的金属间物品及其制造方法包括具有从激光冲击喷丸表面延伸到制品中的激光冲击喷丸（LSP）施加的压缩残余应力的区域。一个实施例包括具有前缘的金属间翼型的涡轮机或压缩机叶片以及沿着前缘的至少一部分径向延伸的至少一个激光冲击喷丸表面，具有由激光冲击喷丸（LSP）施加的压缩残余应力的区域，从激光冲击喷丸表面延伸到金属间翼型。

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