公开(公告)号：US20110064584A1

公开(公告)日：2011-03-17

申请号：US12559656

申请日：2009-09-15

Applicant: GITAHI CHARLES MUKIRA ,  DANIEL ANTHONY NOWAK ,  MICHAEL DOUGLAS ARNETT ,  SRIKANTH CHANDRUDU KOTTILINGAM

Inventor： GITAHI CHARLES MUKIRA ,  DANIEL ANTHONY NOWAK ,  MICHAEL DOUGLAS ARNETT ,  SRIKANTH CHANDRUDU KOTTILINGAM

IPC: F01D5/28 ,  F01D5/14 ,  B23P15/04

CPC classification number: F01D5/28 ,  F01D5/187 ,  Y10T29/49321 ,  Y10T29/49337

Abstract: A turbine bucket that includes a pressure side, a suction side opposite the pressure side, and a rib extending between the pressure side and the suction side. A tip cap is attached to the pressure side and the suction side and covers the rib. The tip cap includes a precipitation hardened material and a passage aligned with the rib. A method for assembling a turbine bucket having a pressure side and a suction side and a rib extending between the pressure side and suction side. The method includes receiving a tip cap made from a precipitation hardened material and having a passage in the tip cap. The method further includes locating the rib visually through the passage and aligning the passage with the rib. The method also includes welding the tip cap to the turbine bucket and to the rib.

Abstract translation: 一种涡轮机桶，包括压力侧，与压力侧相对的吸入侧，以及在压力侧和吸力侧之间延伸的肋。 顶盖附接到压力侧和吸力侧并覆盖肋。 顶盖包括沉淀硬化材料和与肋对准的通道。 一种用于组装具有压力侧和吸力侧的涡轮机的方法以及在压力侧和吸入侧之间延伸的肋。 该方法包括接收由沉淀硬化材料制成并在顶盖中具有通道的尖端盖。 该方法还包括通过通道目视定位肋并将通道与肋对准。 该方法还包括将顶盖焊接到涡轮机桶和肋上。

公开(公告)号：US08987629B2

公开(公告)日：2015-03-24

申请号：US12511494

申请日：2009-07-29

Applicant: Yan Cui ,  Gitahi Charles Mukira ,  Srikanth Chandrudu Kottilingam

Inventor： Yan Cui ,  Gitahi Charles Mukira ,  Srikanth Chandrudu Kottilingam

IPC: B23K9/04 ,  B23K31/00 ,  F01D5/14 ,  B23K10/02 ,  B22C21/14 ,  B23K26/32 ,  B23K26/34 ,  B23K35/30 ,  C22C19/05 ,  C22C19/07

CPC classification number: F01D5/147 ,  B22C21/14 ,  B23K10/027 ,  B23K26/32 ,  B23K26/342 ,  B23K35/30 ,  B23K35/3066 ,  B23K2101/001 ,  B23K2103/18 ,  B23K2103/26 ,  C22C19/055 ,  C22C19/056 ,  C22C19/07 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2230/232

Abstract: A process for closing an opening in a surface of a component, and components formed thereby. The process entails forming a channel in the component surface so that the channel at least partially surrounds an opening at the component surface. An alloy is then deposited in the channel to form a crack-free deposit in the channel. A step is then machined that intersects the opening and is at least partially formed in the deposit. The step defines a recess that is at least partially surrounded by a peripheral portion of the deposit and has a surface recessed into the component surface. A cap is placed in the recess and welded to the peripheral portion of the deposit to define a weld joint that completely closes the opening. The surface of the weld joint is then machined to form a machined surface that is substantially flush with the component surface.

Abstract translation: 用于封闭部件表面中的开口的过程，以及由此形成的部件。 该过程需要在部件表面中形成通道，使得通道至少部分地围绕部件表面处的开口。 然后将合金沉积在通道中以在通道中形成无裂纹沉积物。 然后加工与开口相交并且至少部分地形成在沉积物中的台阶。 台阶限定了至少部分地被沉积物的周边部分包围的凹部，并且具有凹入到部件表面中的表面。 将盖放置在凹部中并焊接到沉积物的周边部分以限定完全关闭开口的焊接接头。 然后对焊接接头的表面进行加工，以形成与部件表面基本齐平的机加工表面。

公开(公告)号：US08371817B2

公开(公告)日：2013-02-12

申请号：US12559656

申请日：2009-09-15

Applicant: Gitahi Charles Mukira ,  Daniel Anthony Nowak ,  Michael Douglas Arnett ,  Srikanth Chandrudu Kottilingam

Inventor： Gitahi Charles Mukira ,  Daniel Anthony Nowak ,  Michael Douglas Arnett ,  Srikanth Chandrudu Kottilingam

IPC: B64C11/20 ,  B64C11/26

CPC classification number: F01D5/28 ,  F01D5/187 ,  Y10T29/49321 ,  Y10T29/49337

Abstract: A turbine bucket that includes a pressure side, a suction side opposite the pressure side, and a rib extending between the pressure side and the suction side. A tip cap is attached to the pressure side and the suction side and covers the rib. The tip cap includes a precipitation hardened material and a passage aligned with the rib. A method for assembling a turbine bucket having a pressure side and a suction side and a rib extending between the pressure side and suction side. The method includes receiving a tip cap made from a precipitation hardened material and having a passage in the tip cap. The method further includes locating the rib visually through the passage and aligning the passage with the rib. The method also includes welding the tip cap to the turbine bucket and to the rib.

Abstract translation: 一种涡轮机桶，包括压力侧，与压力侧相对的吸入侧，以及在压力侧和吸力侧之间延伸的肋。 顶盖附接到压力侧和吸力侧并覆盖肋。 顶盖包括沉淀硬化材料和与肋对准的通道。 一种用于组装具有压力侧和吸力侧的涡轮机的方法以及在压力侧和吸入侧之间延伸的肋。 该方法包括接收由沉淀硬化材料制成并在顶盖中具有通道的尖端盖。 该方法还包括通过通道目视定位肋并将通道与肋对准。 该方法还包括将顶盖焊接到涡轮机桶和肋上。

公开(公告)号：US20120282086A1

公开(公告)日：2012-11-08

申请号：US13100441

申请日：2011-05-04

Applicant: Ganjiang Feng ,  Jon Conrad Schaeffer ,  Stephen Joseph Balsone ,  Hariharan Sundaram ,  Sundar Amancherla ,  Gitahi Charles Mukira

Inventor： Ganjiang Feng ,  Jon Conrad Schaeffer ,  Stephen Joseph Balsone ,  Hariharan Sundaram ,  Sundar Amancherla ,  Gitahi Charles Mukira

IPC: F01D9/02 ,  C22C19/05

CPC classification number: C22C19/056 ,  C22C19/05 ,  F01D5/28 ,  F05D2300/607

Abstract: The invention is a class of nickel-base alloys for gas turbine applications, comprising, by weight, about 13.7 to about 14.3 percent chromium, about 5.0 to about 10.0 percent cobalt, about 3.5 to about 5.2 percent tungsten, about 2.8 to about 5.2 percent titanium, about 2.8 to about 4.6 percent aluminum, about 0.0 to about 3.5 percent tantalum, about 1.0 to about 1.7 percent molybdenum, about 0.08 to about 0.13 percent carbon, about 0.005 to about 0.02 percent boron, about 0.0 to about 1.5 percent niobium, about 0.0 to about 2.5 percent hafnium, about 0.0 to about 0.04 percent zirconium, and the balance substantially nickel. The nickel-base alloys may be provided in the form of useful articles of manufacture, and which possess a unique combination of mechanical properties, microstructural stability, resistance to localized pitting and hot corrosion in high temperature corrosive environments, and high yields during the initial forming process as well as post-forming manufacturing and repair processes.

Abstract translation: 本发明是一类用于燃气轮机应用的镍基合金，其重量包含约13.7-约14.3％的铬，约5.0-约10.0％的钴，约3.5-约5.2％的钨，约2.8-约5.2％ 钛，约0.08至约4.6％的铝，约0.0至约3.5％的钽，约1.0至约1.7％的钼，约0.08至约0.13％的碳，约0.005至约0.02％的硼，约0.0至约1.5％的铌， 约0.0至约2.5％的铪，约0.0至约0.04％的锆，余量基本上为镍。 镍基合金可以以有用的制品形式提供，并且具有机械性能，微结构稳定性，耐高温腐蚀性环境中的局部点蚀和热腐蚀的独特组合，以及在初始成型期间的高产率 过程以及后成型制造和维修过程。

公开(公告)号：US20080182119A1

公开(公告)日：2008-07-31

申请号：US11668559

申请日：2007-01-30

Applicant: Michael Douglas Arnett ,  Srikanth Chandrudu Kottilingam ,  Gitahi Charles Mukira ,  Gene Arthur Murphy ,  Daniel Anthony Nowak

Inventor： Michael Douglas Arnett ,  Srikanth Chandrudu Kottilingam ,  Gitahi Charles Mukira ,  Gene Arthur Murphy ,  Daniel Anthony Nowak

IPC: B32B15/01 ,  B23K11/14

CPC classification number: B23K11/14 ,  B23K11/16 ,  Y10T428/12347

Abstract: Disclosed is a projection welding method including providing a first metal substrate, a second metal substrate, and a projection material of separate construction from the first metal substrate and the second metal substrate, disposing the metal projection material between the first metal substrate and the second metal substrate, applying a current and pressure to at least one of the first metal substrate and the second metal substrate, melting the metal projection material via the application of the current and pressure, creating a weld between the first metal substrate and the second metal substrate via the melting, and fixedly associating the first metal substrate and the second metal substrate via the weld.

Abstract translation: 公开了一种投影焊接方法，其包括从第一金属基板和第二金属基板提供分开构造的第一金属基板，第二金属基板和突起材料，将金属突起材料设置在第一金属基板和第二金属 基板，对第一金属基板和第二金属基板中的至少一个施加电流和压力，通过施加电流和压力来熔化金属突起材料，在第一金属基板和第二金属基板之间经由 熔化，并且经由焊缝固定地连接第一金属基板和第二金属基板。

公开(公告)号：US20110024393A1

公开(公告)日：2011-02-03

申请号：US12511494

申请日：2009-07-29

Applicant: Yan Cui ,  Gitahi Charles Mukira ,  Srikanth Chandrudu Kottilingam

Inventor： Yan Cui ,  Gitahi Charles Mukira ,  Srikanth Chandrudu Kottilingam

IPC: B23K9/04

CPC classification number: F01D5/147 ,  B22C21/14 ,  B23K10/027 ,  B23K26/32 ,  B23K26/342 ,  B23K35/30 ,  B23K35/3066 ,  B23K2101/001 ,  B23K2103/18 ,  B23K2103/26 ,  C22C19/055 ,  C22C19/056 ,  C22C19/07 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2230/232

Abstract: A process for closing an opening in a surface of a component, and components formed thereby. The process entails forming a channel in the component surface so that the channel at least partially surrounds an opening at the component surface. An alloy is then deposited in the channel to form a crack-free deposit in the channel. A step is then machined that intersects the opening and is at least partially formed in the deposit. The step defines a recess that is at least partially surrounded by a peripheral portion of the deposit and has a surface recessed into the component surface. A cap is placed in the recess and welded to the peripheral portion of the deposit to define a weld joint that completely closes the opening. The surface of the weld joint is then machined to form a machined surface that is substantially flush with the component surface.

Abstract translation: 用于封闭部件表面中的开口的过程，以及由此形成的部件。 该过程需要在部件表面中形成通道，使得通道至少部分地围绕部件表面处的开口。 然后将合金沉积在通道中以在通道中形成无裂纹沉积物。 然后加工与开口相交并且至少部分地形成在沉积物中的台阶。 台阶限定了至少部分地被沉积物的周边部分包围的凹部，并且具有凹入到部件表面中的表面。 将盖放置在凹部中并焊接到沉积物的周边部分以限定完全关闭开口的焊接接头。 然后对焊接接头的表面进行加工，以形成与部件表面基本齐平的机加工表面。