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1. 发明申请

US20020148270A1 Method and apparatus for improving the fatigue life of components and structures 有权
标题翻译：提高部件和结构的疲劳寿命的方法和装置
公开(公告)号：US20020148270A1
公开(公告)日：2002-10-17
申请号：US10066408
申请日：2002-01-30
申请人： STRESSWAVE, INC.
发明人： Eric T. Easterbrook
IPC分类号： B21D028/00
CPC分类号： B23P9/04 , B21C23/001 , B21D28/24 , B21J1/025 , B21J5/00 , B21J15/00 , B21J15/38 , B23P9/025 , B24B39/06 , C21D7/02 , C21D7/04 , C21D2221/00
摘要： Metal cold-working tooling and a method of employing such tooling. The tooling is used to produce deformation in a workpiece, to provide a selected beneficial residual stress profile in the workpiece, in order to provide high fatigue life structures in a minimum number of manufacturing steps. An indenter is used to coldwork a workpiece, causing dimples in the workpiece. Preferably, the dimples are provided with a shape formed by application of a uniform pressure profile to the workpiece surface. As optimized, a relatively uniform beneficial residual stress profile is provided at both the surface and at the midplane apertures in a workpiece, so as to improve overall fatigue life. Also, an improved indenter tool profile shape is described, having a smoothly curved indenter surface portion. And, the use of consumable lamina wafers provides the benefit of easy application of uniform stress profile to a workpiece.
摘要翻译：金属冷加工工具和采用这种工具的方法。工具用于在工件中产生变形，以在工件中提供选定的有益的残余应力轮廓，以便在最少数量的制造步骤中提供高疲劳寿命结构。压头用于冷工件，导致工件中的凹坑。优选地，凹坑设置有通过对工件表面施加均匀的压力分布而形成的形状。优化后，在工件的表面和中平面孔两端均设有相对均匀的有益残余应力分布，以提高整体的疲劳寿命。此外，描述了改进的压头工具轮廓形状，其具有平滑弯曲的压头表面部分。而且，使用消耗性薄片晶片提供了易于对工件应用均匀的应力分布的好处。

2. 发明申请

US20030167617A1 Method of building fatigue life enhanced structures 失效
标题翻译：建筑疲劳寿命增强结构的方法
公开(公告)号：US20030167617A1
公开(公告)日：2003-09-11
申请号：US10370814
申请日：2003-02-19
申请人： STRESSWAVE, INC.
发明人： Eric T. Easterbrook , Michael A. Landy
IPC分类号： B23P011/00 , B21D039/03
CPC分类号： B23P9/025 , B23P9/04 , Y10T29/49826 , Y10T29/49863 , Y10T29/49995 , Y10T29/53365
摘要： A method of manufacturing a fatigue life enhanced product from a plurality of workpiece parts. At least one fatigue enhancing operation is performed on a first workpiece at a first work station. At least one fatigue enhancing operation is performed on a second workpiece at a second work station. The first and second workpieces are transferred to a first assembly station, where the workpieces are joined to form a fatigue life enhanced product. Aerostructures manufactured according to the method may include components fabricated at different locations to have fatigue life enhancing properties, especially in bounding material adjacent to holes designed to accommodate fasteners. By use of the method, the final assembly step can thus avoid the necessity to include the processing of holes to enhance fatigue life, since this step has been performed prior to bringing components into position to be joined in the final shape or assembly of the airframe.
摘要翻译：一种从多个工件部件制造疲劳寿命增强产品的方法。在第一工位上对第一工件执行至少一个疲劳增强操作。在第二工作站上对第二工件执行至少一个疲劳增强操作。第一和第二工件被转移到第一组装工位，其中工件被连接以形成疲劳寿命增强的产品。根据该方法制造的航空结构可以包括在不同位置制造的具有疲劳寿命增强性能的部件，特别是在与设计成适应紧固件的孔相邻的边界材料中。因此，通过使用该方法，最终组装步骤因此可以避免包括加工孔以增加疲劳寿命的必要性，因为该步骤已经在使部件进入到机身的最终形状或组装中的接合位置之前进行。

3. 发明申请

US20030118419A1 Method for installation of nut plates, plugs, and bushings, and enhanced fatigue life metal structures resulting therefrom 失效
标题翻译：用于安装螺母板，插头和衬套的方法以及由此产生的增强的疲劳寿命的金属结构
公开(公告)号：US20030118419A1
公开(公告)日：2003-06-26
申请号：US10305469
申请日：2002-11-25
申请人： STRESSWAVE, INC.
发明人： Eric T. Easterbrook , Milton Sigelmann , Michael Landy , Taeksun Nam
IPC分类号： F16B033/04
CPC分类号： B21J15/50 , B21J15/02 , B21J15/04 , B21K25/00 , B23P9/025 , B23P9/04 , F16B4/004 , F16B19/06 , Y10T29/49915 , Y10T29/4994 , Y10T29/49947 , Y10T29/49954 , Y10T403/4966
摘要： A method of installing fastening elements, and rivetless fasteners for use with the method. Rivetless nutplate fasteners are installed in metal structures by providing flush fit barrel shaped plug or bushing portions in a hole in the structure as defined by an edge wall. The barrel portion is acted upon axially, and expanded radially outward toward the edge wall of the hole, to provide an interference fit. The ends of the barrel portion are machined as desired for flushness. Also, a hole is installed as necessary. Rivetless nutplates are easily installed, and the installation enhances fatigue life of the hole surrounding the barrel of the nutplate.
摘要翻译：一种安装紧固元件的方法，以及用于该方法的无铆钉紧固件。无铆钉螺母紧固件通过在由边缘壁限定的结构中的孔中提供平齐地配合的筒状塞子或套管部分而安装在金属结构中。筒形部分沿着轴向作用，并朝向孔的边缘径向向外扩张，以提供过盈配合。桶部分的端部根据需要进行加工以达到平整度。另外，根据需要安装孔。无紧固螺母板易于安装，并且安装增加了螺母板筒周围的孔的疲劳寿命。

4. 发明申请

US20220298919A1 APPARATUS AND METHOD FOR INTEGRAL TURBINE BLADE REPAIR 有权
公开(公告)号：US20220298919A1
公开(公告)日：2022-09-22
申请号：US17572283
申请日：2022-01-10
申请人： STRESSWAVE, INC.
发明人： Eric T. EASTERBROOK
IPC分类号： F01D5/00 , G01N3/42 , B23P6/04 , G01B7/26 , G06F30/17
摘要： Repaired rotors are provided. The rotors are repaired by using an indenter apparatus for plastically straining original portions of the rotor and adjacent repair welds. The weld nugget, adjacent heat affected zones, and the adjacent parent-metal portions or new metal portions, are indented at a weld nugget and heat affected zone, to produce threshold levels of uniform plastic strain which meet or exceed plastic strain levels that provide, when the weld nugget and heat affected zone is heat treated, a recrystallized grain structure metallurgically comparable to the grain structure of the original parent-metal of the rotor. Repaired integrally bladed rotors for gas turbine engines, such as aircraft engines, are provided. Blades for gas turbine engines, including integrally bladed rotors, may be advantageously provided, having been manufactured or repaired as described.

5. 发明授权

US11225868B1 Method for integral turbine blade repair 有权
公开(公告)号：US11225868B1
公开(公告)日：2022-01-18
申请号：US16261374
申请日：2019-01-29
申请人： STRESSWAVE, INC.
发明人： Eric T Easterbrook
IPC分类号： G01N3/42 , F01D5/00 , B23P6/04 , G01B7/26 , G06F30/17
摘要： A method for design in indenter apparatus for plastically straining a workpiece including a weld nugget, adjacent heat affected zones, and the adjacent parent-metal portions or new metal portions, throughout the weld nugget volume and heat affected zone, to produce threshold levels of uniform plastic strain which meet or exceed plastic strain levels that provide, when the weld nugget and heat affected zone is heat treated, a recrystallized grain structure metallurgically comparable to the grain structure of the parent-metal. The indenter provided by the optimization methods may be used to advantageously in a method for the repair of damaged rotors, including integrally bladed rotors, in gas turbine engines, such as in aircraft engines. Blades for gas turbine engines, including integrally bladed rotors, may be advantageously provided constructed by the methods taught.

6. 发明授权

US07516534B2 Method for attaching a nut element to a metal structure 失效
标题翻译：用于将螺母元件附接到金属结构的方法
公开(公告)号：US07516534B2
公开(公告)日：2009-04-14
申请号：US10305469
申请日：2002-11-25
申请人： Eric T. Easterbrook , Milton Sigelmann , Michael Landy , Taeksun Nam
发明人： Eric T. Easterbrook , Milton Sigelmann , Michael Landy , Taeksun Nam
IPC分类号： B23P11/00 , B23P17/00 , F16B37/00 , F16B37/04
CPC分类号： B21J15/50 , B21J15/02 , B21J15/04 , B21K25/00 , B23P9/025 , B23P9/04 , F16B4/004 , F16B19/06 , Y10T29/49915 , Y10T29/4994 , Y10T29/49947 , Y10T29/49954 , Y10T403/4966
摘要： A method of installing fastening elements, and rivetless fasteners for use with the method. Rivetless nutplate fasteners are installed in metal structures by providing flush fit barrel shaped plug or bushing portions in a hole in the structure as defined by an edge wall. The barrel portion is acted upon axially, and expanded radially outward toward the edge wall of the hole, to provide an interference fit. The ends of the barrel portion are machined as desired for flushness. Also, a hole is installed as necessary. Rivetless nutplates are easily installed, and the installation enhances fatigue life of the hole surrounding the barrel of the nutplate.
摘要翻译：一种安装紧固元件的方法，以及用于该方法的无铆钉紧固件。无铆钉螺母紧固件通过在由边缘壁限定的结构中的孔中提供平齐地配合的筒状塞子或套管部分而安装在金属结构中。筒形部分沿着轴向作用，并朝向孔的边缘径向向外扩张，以提供过盈配合。桶部分的端部根据需要进行加工以达到平整度。另外，根据需要安装孔。无紧固螺母板易于安装，并且安装增加了螺母板筒周围的孔的疲劳寿命。

7. 发明申请

US20070157461A1 Manufacturing Facility for Manufacturing a Fatigue Life Enhanced Airframe 审中-公开
标题翻译：制造疲劳寿命增强机身制造设备
公开(公告)号：US20070157461A1
公开(公告)日：2007-07-12
申请号：US11278677
申请日：2006-04-05
申请人： Eric Easterbrook , Michael Landy
发明人： Eric Easterbrook , Michael Landy
IPC分类号： B23P21/00
CPC分类号： B23P9/025 , B23P9/04 , Y10T29/49826 , Y10T29/49863 , Y10T29/49995 , Y10T29/53365
摘要： A manufacturing facility for manufacturing a fatigue life enhanced product from a plurality of workpiece parts. At least one fatigue enhancing operation is performed on a first workpiece at a first work station. At least one fatigue enhancing operation is performed on a second workpiece at a second work station. The first and second workpieces are transferred to a first assembly station, where the workpieces are joined to form a fatigue life enhanced product. Aerostructures manufactured according to the method may include components fabricated at different locations to have fatigue life enhancing properties, especially in bounding material adjacent to holes designed to accommodate fasteners. By use of this business method, the final assembly step can thus avoid the necessity to include the processing of holes to enhance fatigue life, since this step has been performed prior to bringing components into position to be joined in the final shape or assembly of the airframe.
摘要翻译：一种用于从多个工件部件制造疲劳寿命增强产品的制造设备。在第一工位上对第一工件执行至少一个疲劳增强操作。在第二工作站上对第二工件执行至少一个疲劳增强操作。第一和第二工件被转移到第一组装工位，其中工件被连接以形成疲劳寿命增强的产品。根据该方法制造的航空结构可以包括在不同位置制造的具有疲劳寿命增强性能的部件，特别是在与设计成适应紧固件的孔相邻的边界材料中。通过使用这种商业方法，最终组装步骤因此可以避免包括加工孔以提高疲劳寿命的必要性，因为这个步骤已经在使部件进入到最终形状或组装机体。

8. 发明申请

US20020011091A1 Method and apparatus for improving the fatigue life of components and structures using the stresswave process 失效
标题翻译：使用应力波过程改善部件和结构的疲劳寿命的方法和装置
公开(公告)号：US20020011091A1
公开(公告)日：2002-01-31
申请号：US09858325
申请日：2001-05-15
申请人： STRESSWAVE INC.
发明人： Eric T. Easterbrook
IPC分类号： B21D028/00
CPC分类号： B21D28/24 , B21C23/001 , B21J1/025 , B21J5/00 , B21J15/00 , B21J15/38 , B23P9/025 , B23P9/04 , B24B39/06 , C21D7/02 , C21D7/04 , C21D2221/00
摘要： Metal coldworking tooling and a method of employing such tooling. The tooling is used to produce deformation in a workpiece, preferably via use of stress waves, to provide a selected beneficial residual stress profile in the workpiece, in order to provide high fatigue life structures in a minimum number of manufacturing steps. Preferably, action of an indenter causes propagation of stress waves to coldwork a workpiece, causing dimples in the workpiece. Preferably, the dimples are provided with a shape formed by application of a pre-selected pressure profile to the workpiece surface. By optimized use of the method, a relatively uniform beneficial residual stress profile is provided at both the surface and at the midplane apertures in a workpiece, so as to improve overall fatigue life.
摘要翻译：金属冷加工工具和采用这种工具的方法。该工具用于在工件中产生变形，优选通过使用应力波，以在工件中提供选定的有益的残余应力轮廓，以便在最少数量的制造步骤中提供高疲劳寿命结构。优选地，压头的作用导致应力波传播到工件的冷加工，导致工件中的凹坑。优选地，凹坑设置有通过将预选压力分布施加到工件表面而形成的形状。通过优化使用该方法，在工件的表面和中面板孔处提供相对均匀的有益残余应力分布，以提高整体的疲劳寿命。

9. 发明授权

US11655713B2 Integrally repaired bladed rotor 有权
公开(公告)号：US11655713B2
公开(公告)日：2023-05-23
申请号：US17572283
申请日：2022-01-10
申请人： STRESSWAVE, INC.
发明人： Eric T Easterbrook
IPC分类号： G01N3/42 , B23P6/04 , F01D5/00 , G01B7/26 , G06F30/17
CPC分类号： F01D5/005 , B23P6/045 , G01B7/26 , G01N3/42 , G06F30/17 , F05D2230/232 , F05D2230/80 , F05D2260/821 , F05D2260/941
摘要： Repaired rotors are provided. The rotors are repaired by using an indenter apparatus for plastically straining original portions of the rotor and adjacent repair welds. The weld nugget, adjacent heat affected zones, and the adjacent parent-metal portions or new metal portions, are indented at a weld nugget and heat affected zone, to produce threshold levels of uniform plastic strain which meet or exceed plastic strain levels that provide, when the weld nugget and heat affected zone is heat treated, a recrystallized grain structure metallurgically comparable to the grain structure of the original parent-metal of the rotor. Repaired integrally bladed rotors for gas turbine engines, such as aircraft engines, are provided. Blades for gas turbine engines, including integrally bladed rotors, may be advantageously provided, having been manufactured or repaired as described.

10. 发明授权

US07047786B2 Method and apparatus for improving the fatigue life of components and structures 有权
公开(公告)号：US07047786B2
公开(公告)日：2006-05-23
申请号：US10066408
申请日：2002-01-30
申请人： Eric T. Easterbrook
发明人： Eric T. Easterbrook
IPC分类号： B21D28/26 , B21D31/00
CPC分类号： B23P9/04 , B21C23/001 , B21D28/24 , B21J1/025 , B21J5/00 , B21J15/00 , B21J15/38 , B23P9/025 , B24B39/06 , C21D7/02 , C21D7/04 , C21D2221/00
摘要： Metal cold-working tooling and a method of employing such tooling. The tooling is used to produce deformation in a workpiece, to provide a selected beneficial residual stress profile in the workpiece, in order to provide high fatigue life structures in a minimum number of manufacturing steps. An indenter is used to coldwork a workpiece, causing dimples in the workpiece. Preferably, the dimples are provided with a shape formed by application of a uniform pressure profile to the workpiece surface. As optimized, a relatively uniform beneficial residual stress profile is provided at both the surface and at the midplane apertures in a workpiece, so as to improve overall fatigue life. Also, an improved indenter tool profile shape is described, having a smoothly curved indenter surface portion. And, the use of consumable lamina wafers provides the benefit of easy application of uniform stress profile to a workpiece.

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