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1. 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。

2. 发明授权

US5674329A Adhesive tape covered laser shock peening 失效
标题翻译：胶带覆盖激光冲击硬化
公开(公告)号：US5674329A
公开(公告)日：1997-10-07
申请号：US638623
申请日：1996-04-26
申请人： Seetharamaiah Mannava , Angel L. Ortiz, Jr. , Robert L. Yeaton , Albert E. McDaniel , Jeffrey D. Losey
发明人： Seetharamaiah Mannava , Angel L. Ortiz, Jr. , Robert L. Yeaton , Albert E. McDaniel , Jeffrey D. Losey
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, while flowing a curtain of water 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.
摘要翻译：一种激光冲击对金属部件进行激光冲击的方法，该方法是通过在已经由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，优选地具有在可消除层的一侧上的粘合剂层的自粘带同时在激光束射出的表面上流动水幕。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。

3. 发明授权

US6155789A Gas turbine engine airfoil damper and method for production 失效
标题翻译：燃气涡轮发动机翼型阻尼器及其生产方法
公开(公告)号：US6155789A
公开(公告)日：2000-12-05
申请号：US286803
申请日：1999-04-06
申请人： Seetharamaiah Mannava , William D. Cowie , Robert L. Yeaton
发明人： Seetharamaiah Mannava , William D. Cowie , Robert L. Yeaton
IPC分类号： C21D10/00 , F01D5/16 , F01D5/26 , B63H1/26
CPC分类号： C21D10/005 , F01D5/16 , F01D5/26 , Y02T50/673 , Y10S416/50 , Y10T29/49318 , Y10T29/49336
摘要： A gas turbine engine airfoil assembly for damping airfoil vibrations includes a metallic airfoil having an outer surface and a chordwise extending cavity beneath the outer surface of the airfoil. A damper is trapped within the cavity and a region in the airfoil surrounding the cavity has compressive residual stresses imparted by laser shock peening. The damper is preferably a chordwise extending linear wire having a distal end tacked down within the cavity. The invention includes a method for constructing the assembly for damping airfoil vibrations.
摘要翻译：用于阻尼翼型振动的燃气涡轮发动机翼型组件包括在翼型件的外表面下方具有外表面和弦向延伸腔的金属翼型件。阻尼器被捕获在空腔内，并且围绕空腔的翼型中的区域具有由激光冲击喷丸施加的压缩残余应力。阻尼器优选地是弦向延伸的线性线，其具有在腔内向下的远端。本发明包括一种用于构造用于阻尼翼型振动的组件的方法。

4. 发明授权

US5744781A Method and apparatus for laser shock peening 失效
标题翻译：激光冲击硬化的方法和装置
公开(公告)号：US5744781A
公开(公告)日：1998-04-28
申请号：US511771
申请日：1995-08-07
申请人： Robert L. Yeaton
发明人： Robert L. Yeaton
IPC分类号： B23K26/00 , B23K26/14 , C21D7/06 , C21D10/00
CPC分类号： B23K26/0075 , B23K26/146 , C21D10/005 , C21D7/06
摘要： A method and apparatus for laser shock peening a portion of a surface on a workpiece with a laser beam directed through a curtain of water confined to the surface by a confining device that confines the water curtain on the surface essentially without any air gaps between the surface and a transparent wall of the confining device. The confining device may also incorporate a back pressure mechanism for producing a back pressure in the curtain of water over the surface such as a nozzle shaped portion of the transparent wall through which the continuous water curtain is introduced by a water nozzle. Automated mechanisms such as robotic arms may be used for positioning the confining wall a predetermined distance away from the surface portion and optionally a water supply nozzle to provide the curtain of water over the surface.
摘要翻译：一种激光冲击硬化处理工件表面的一部分的方法和装置，其中激光束通过限定在表面上的水幕限定在水面上，激光束将水幕基本上在表面之间没有任何气隙和封闭装置的透明壁。限制装置还可以包括用于在诸如透明壁的喷嘴形状部分的表面上的水幕中产生背压的背压机构，连续水幕通过水喷嘴引入。诸如机器人手臂之类的自动化机构可用于将约束壁定位在远离表面部分预定距离的位置，并且可选地使用供水喷嘴以在表面上提供水幕。

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