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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

US5591009A Laser shock peened gas turbine engine fan blade edges 失效
标题翻译：激光冲击硬化燃气轮机发动机风扇叶片边缘
公开(公告)号：US5591009A
公开(公告)日：1997-01-07
申请号：US373133
申请日：1995-01-17
申请人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie , Herbert Halila , James E. Rhoda , James E. Gutknecht
发明人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie , Herbert Halila , James E. Rhoda , James E. Gutknecht
IPC分类号： C21D10/00 , F01D5/28 , F01D5/14
CPC分类号： F01D5/286 , C21D10/005 , Y02T50/671 , Y02T50/673 , Y10S148/903
摘要： Gas turbine engine fan blade with a metallic airfoil having a leading edge, a trailing edge, and a radially outer tip, and at least one laser shock peened surface located along the leading edge with a region having deep compressive residual stresses imparted by laser shock peening (LSP) extending into the airfoil from the laser shock peened surface.
摘要翻译：具有前缘，后缘和径向外端的金属翼型的燃气涡轮发动机风扇叶片以及沿着前缘设置的至少一个激光冲击硬化表面，其具有由激光冲击喷丸赋予的较深的压缩残余应力（LSP）从激光冲击硬化表面延伸到翼型中。

4. 发明授权

US06541733B1 Laser shock peening integrally bladed rotor blade edges 失效
标题翻译：激光冲击喷丸一体叶片转子叶片边缘
公开(公告)号：US06541733B1
公开(公告)日：2003-04-01
申请号：US09771856
申请日：2001-01-29
申请人： Seetharamaiah Mannava , Jeffrey H. Nussbaum , Abraham S. Assa , Andrea G. M. Cox , James R. Zisson , Albert E. McDaniel , William D. Cowie
发明人： Seetharamaiah Mannava , Jeffrey H. Nussbaum , Abraham S. Assa , Andrea G. M. Cox , James R. Zisson , Albert E. McDaniel , William D. Cowie
IPC分类号： B23K2600
CPC分类号： F01D5/286 , C21D10/005 , Y02T50/673
摘要： A method for laser shock peening rotor blade leading and trailing edges of gas turbine engine integrally bladed rotors and disks that are not blocked by other rows of blades. The method includes continuously firing a stationary laser beam, which repeatable pulses between relatively constant periods, along at least a portion of leading or trailing edges of the blade, with the laser beam aimed at an oblique angle with respect to a surface of the edge such that laser pulses form overlapping elliptical shaped laser spots. In the exemplary embodiment of the invention, the elliptical shaped laser spots have an overlap of about 50% and are on the order of 11.7 mm by 4 mm in diameter. Another method is for laser shock peening rotor blade leading and trailing edges of gas turbine engine integrally bladed rotors and disks that are blocked by other rows of blades. The method includes continuously firing the stationary laser beam, which repeatable pulses between relatively constant periods, along at least a portion of leading or trailing edges of the blade, with the laser beam compoundly angled such that it is aimed at a first oblique angle with respect to a surface of the edge and at a second oblique angle with respect to an axis about which the rotor is circumscribed. Laser pulses form the elliptical shaped laser spots that are angled from the leading edge radially inwardly towards the axis. In the exemplary embodiment, the elliptical shaped laser spots have an overlap of about 50%.
摘要翻译：一种用于激光冲击喷丸的转子叶片的前缘和后缘的燃气涡轮发动机整体叶片的转子和盘，不被其他行的叶片阻挡。该方法包括沿着刀片的前缘或后缘的至少一部分连续射出固定的激光束，该固定激光束是相对恒定周期之间的可重复脉冲，其中激光束相对于边缘表面倾斜倾斜角，该激光脉冲形成重叠的椭圆形激光点。在本发明的示例性实施例中，椭圆形激光光斑具有约50％的重叠，并且在直径上为11.7mm×4mm。另一种方法是用于激光冲击硬化转子叶片的前缘和后缘的燃气涡轮发动机整体叶片转子和盘，被其他行的叶片阻挡。该方法包括沿着刀片的前缘或后缘的至少一部分连续点燃相对恒定周期之间的可重复脉冲的固定激光束，其中激光束复合成角度，使得其相对于第一倾斜角度瞄准到边缘的表面并且相对于绕转子限定的轴线以第二倾斜角度。激光脉冲形成从前缘径向向内朝向轴线成角度的椭圆形激光点。在示例性实施例中，椭圆形激光点具有约50％的重叠。

5. 发明授权

US5846054A Laser shock peened dovetails for disks and blades 失效
标题翻译：用于磁盘和刀片的激光冲击硬化燕尾形
公开(公告)号：US5846054A
公开(公告)日：1998-12-08
申请号：US319345
申请日：1994-10-06
申请人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie , Herbert Halila
发明人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie , Herbert Halila
IPC分类号： C21D10/00 , F01D5/28 , F01D5/30
CPC分类号： F01D5/3007 , F01D5/286 , F01D5/3092 , C21D10/005 , Y02T50/671
摘要： A dovetail assembly for mounting blades with dovetail roots axially into disk dovetail slots around a disk periphery which is subject to a tensile stress field due to centrifugal and thermal growth induced forces generated by the rotor when the rotor is rotating. The dovetail assembly has stress risers each in the form of a transition fillet between a neck or an area of minimum width and a pressure face which is designed to be a contact surface between complementary blade dovetail roots and disk dovetail slots formed between adjacent disk posts. The region around the stress riser has deep compressive residual stresses imparted by laser shock peening and is radially adjacent the stress riser and extends inward from a laser shocked surface of the component along the transition fillet.
摘要翻译：一种燕尾组件，其用于将叶片的叶片轴向安装在围绕盘周边的盘形燕尾槽中，盘形周边由转子旋转时由转子产生的离心和热生长引起的力引起拉应力场。燕尾组合件具有在颈部或最小宽度区域之间的过渡角形的压力提升器，压力面被设计成互补的叶片燕尾根和相邻的盘柱之间形成的盘形燕尾槽之间的接触表面。应力提升管周围的区域具有由激光冲击喷丸赋予的较深的压缩残余应力，并且径向地邻近应力提升器并且沿着过渡圆角从部件的激光冲击表面向内延伸。

6. 发明授权

US5620307A Laser shock peened gas turbine engine blade tip 失效
标题翻译：激光冲击硬化燃气轮机发动机叶片尖端
公开(公告)号：US5620307A
公开(公告)日：1997-04-15
申请号：US399325
申请日：1995-03-06
申请人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie , Herbert Halila , James E. Rhoda , Stephen J. Ferrigno
发明人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie , Herbert Halila , James E. Rhoda , Stephen J. Ferrigno
IPC分类号： C21D10/00 , F01D5/28 , F01D5/18
CPC分类号： B23P6/002 , C21D10/005 , F01D5/286 , F05D2230/90 , Y02T50/671 , Y02T50/673 , Y10S148/903
摘要： Gas turbine engine blade with a metallic airfoil having a radially outer tip extending chordwise between a leading edge and a trailing edge and at least one laser shock peened surface extending radially along at least a portion of the tip and a region having deep compressive residual stresses imparted by laser shock peening (LSP) extending into the airfoil from the laser shock peened surface.
摘要翻译：具有金属翼型件的燃气涡轮发动机叶片具有在前缘和后缘之间弦向延伸的径向外端，以及至少一个激光冲击喷丸表面，其沿着尖端的至少一部分径向延伸，并具有赋予深度压缩残余应力的区域通过激光冲击硬化（LSP）从激光冲击喷丸表面延伸到翼型中。

7. 发明授权

US5492447A Laser shock peened rotor components for turbomachinery 失效
标题翻译：用于涡轮机械的激光冲击喷丸转子部件
公开(公告)号：US5492447A
公开(公告)日：1996-02-20
申请号：US319346
申请日：1994-10-06
申请人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie
发明人： Seetharamaiah Mannava , Albert E. McDaniel , William D. Cowie
IPC分类号： C21D7/06 , C21D10/00 , F01D5/02 , F01D5/28 , F01D5/30 , F01D1/24
CPC分类号： B23K26/0069 , C21D10/005 , F01D5/02 , F01D5/286 , F01D5/3092 , C21D7/06 , F05D2230/90 , Y02T50/671
摘要： Turbomachinery rotor components having a metallic body with at least a portion of the body subject to a tensile stress field due to centrifugal and thermal growth induced forces generated by the rotor when the rotor is rotating, at least one stress riser in the stress field portion that causes stress concentration when the rotor is rotating, and at least one region of the component around the stress riser having deep compressive residual stresses imparted by laser shock peening (LSP).
摘要翻译：具有金属体的涡轮机械转子部件，其具有至少一部分体，由于转子旋转时由转子产生的离心和热生长引起的力产生拉伸应力场，应力场部分中的至少一个应力提升器当转子旋转时，引起应力集中，并且应力提升管周围的部件的至少一个区域具有由激光冲击喷丸（LSP）赋予的较深的压缩残余应力。

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