公开(公告)号：US10995620B2

公开(公告)日：2021-05-04

申请号：US16014092

申请日：2018-06-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jonathan Dwight Berry ,  Srikanth Chandrudu Kottilingam

IPC: F01D5/28 ,  F01D5/14

Abstract: The disclosure relates to turbomachine components which include one or more coating-capturing features for thermal insulation. A turbomachine component may include: a body having an exterior surface positioned within a hot gas path (HGP) section of a turbomachine; and a coating-capturing feature mounted on the exterior surface of the body and in thermal communication with the HGP section of the turbomachine, wherein the coating-capturing feature comprises: a first member positioned on the exterior surface of the body, the first member having at least one outer sidewall defining a first perimeter of the coating-capturing feature, a second member positioned on the first member and having at least one outer sidewall defining a second perimeter of the coating-capturing feature, wherein the first member separates the second member from the exterior surface of the body, and an indentation positioned between the first and second members.

公开(公告)号：US10987900B2

公开(公告)日：2021-04-27

申请号：US15900395

申请日：2018-02-20

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Benjamin Paul Lacy ,  David Edward Schick ,  Srikanth Chandrudu Kottilingam

IPC: B22F10/00 ,  B33Y10/00 ,  B33Y80/00 ,  B32B15/01 ,  B22F7/08 ,  B23K26/354 ,  B23K35/30 ,  B23K35/02 ,  B22F5/00 ,  B22F10/20 ,  B23K26/342 ,  B23K26/02 ,  B23K26/144 ,  B22F3/24 ,  B23K103/08

Abstract: An article includes a substrate and a structure of additive manufacturing material of predetermined thickness attached to the substrate, the structure of additive manufacturing material formed by providing a metal alloy powder, forming an initial layer having a preselected thickness and a preselected shape including at least one aperture, with the metal alloy powder, sequentially forming an additional layer with the metal alloy powder over the initial layer, each of additional layers having an additional preselected thickness and an additional preselected shape including an aperture corresponding to the aperture in the initial layer, and joining each of the additional layers to the initial layer or any previously joined additional layers, forming a structure having a predetermined thickness and shape, and an aperture having a predetermined profile. The article includes a passageway through the structure including the aperture and a corresponding metering hole.

公开(公告)号：US10975719B2

公开(公告)日：2021-04-13

申请号：US15398972

申请日：2017-01-05

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ibrahim Ucok ,  Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Surinder Singh Pabla

IPC: F01D25/00 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y80/00 ,  C23C4/134 ,  C23C4/08 ,  C23C14/28 ,  C23C14/16 ,  C23C16/44 ,  C23C16/06 ,  C23C18/16 ,  C23C18/32 ,  B22F3/24 ,  B22F5/00 ,  B22F5/04 ,  B23K15/00 ,  B23K26/342 ,  B23K26/70 ,  B23K26/00 ,  C22C19/07 ,  C22C19/05 ,  C22C38/52 ,  C22C38/50 ,  C22C38/44 ,  C22C38/42 ,  C22C38/48 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C30/02 ,  F01D5/28 ,  F01D25/24 ,  C22C38/10 ,  C22C38/08 ,  B22F3/15 ,  B22F10/20 ,  B23K101/00

Abstract: A process includes forming a printed article having an external surface and at least one microfeature with an internal surface by additive manufacture, coating the external surface and the internal surface of the printed article with a metallic microlayer to form a coated article, and densifying the coated article to form a component. After formation, the printed article has a porosity such that the printed article is not at full density. A densified component includes a printed article having an external surface and at least one microfeature with an internal surface and a metallic microlayer coating the external surface and the internal surface of the printed article. The printed article is formed by additive manufacture.

公开(公告)号：US10731487B2

公开(公告)日：2020-08-04

申请号：US15437005

申请日：2017-02-20

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sandip Dutta ,  Zachary Snider ,  Srikanth Chandrudu Kottilingam ,  Stephen Wassynger ,  Joseph Moroso

IPC: F01D9/04 ,  F01D25/12 ,  B22F5/04 ,  B22F3/105 ,  B22F7/08 ,  F01D5/14

Abstract: At least one turbine component for a gas turbine includes a base component formed by casting and an article. The base component includes a platform. The article on the upper surface of the platform is formed by additive manufacturing. The article has a proximal face sized and shaped to cover at least a portion of the upper surface of the platform of the turbine component and a contoured distal face opposite the proximal face. The contoured distal face has a contour surface serving as at least a portion of a hot gas path surface of the turbine component. The contour surface is arranged and disposed to provide a controlled flow pattern of a working fluid across the contour surface based on a mounting location of the turbine component in a turbine. Methods of manufacturing articles and turbine components are also disclosed.

公开(公告)号：US10675686B2

公开(公告)日：2020-06-09

申请号：US15472783

申请日：2017-03-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Brian Lee Tollison ,  Timothy Neal Pletcher

IPC: B22F1/02 ,  B22F3/16 ,  B22F1/00 ,  B23K35/02 ,  C22C19/05 ,  B23K35/40 ,  B23K35/30 ,  C22C19/07 ,  B22F3/12 ,  B22F7/06 ,  C22C19/00 ,  B32B15/01 ,  B22F7/00 ,  B22F9/04 ,  B23K1/00 ,  B23K31/02 ,  B22F5/04 ,  B22F5/00 ,  B22F7/04 ,  B23K101/34

Abstract: A hybrid preform component including a plurality of elongated metallic cores and a coating paste is provided. The coating paste envelops the plurality of elongated metallic cores. The coating paste includes a first material having a first melting point, a second material having a second melting point, and a binder. A method for treating a component is also provided. The method includes the step of mixing a second material, a first material, and a binder to make coating paste. The method further includes the step of coating the plurality of cores using the coating paste to form a coated rod assembly. The method further includes the step of compressing the coated rod assembly to envelop the coating paste to the plurality of cores and form a preform component having a near net shape. The method further includes the step of sintering the preform component to form a pre-sintered preform.

公开(公告)号：US20200149407A1

公开(公告)日：2020-05-14

申请号：US16184111

申请日：2018-11-08

Applicant: General Electric Company

Inventor： Srikanth Chandrudu Kottilingam ,  Jon Conrad Schaeffer ,  Brian Lee Tollison

IPC: F01D5/18 ,  F01D5/14 ,  B23P15/04

Abstract: A nozzle or blade for a turbomachine includes an airfoil body including at least one first coolant passage, and an edge opening in a leading edge or a trailing edge of the airfoil body. The edge opening has an edge coupon retention member seat in or on an inner surface of the airfoil body. An edge coupon has a shape at least partially configured for coupling to the edge opening in the airfoil body. The edge coupon includes an edge coupon body, at least one second coolant passage in the edge coupon body configured for fluid communication with the at least one first coolant passage in the airfoil body, and a retention member extending from the edge coupon body for coupling to the edge coupon retention member seat in the airfoil body.

公开(公告)号：US10563294B2

公开(公告)日：2020-02-18

申请号：US15451914

申请日：2017-03-07

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sandip Dutta ,  Srikanth Chandrudu Kottilingam

IPC: C23C4/18 ,  B33Y80/00 ,  C23C4/11 ,  F01D25/12 ,  B33Y10/00 ,  B22F5/04 ,  B22F5/00 ,  B22F3/105

Abstract: A method of fabricating a component having active cooling with film holes and other exposed holes is provided. The method includes the step of providing a component including at least one aperture disposed on a surface of the component and fluidly connected to at least one fluid flow passage, the at least one aperture comprising a floor extending from the at least one fluid flow passage to the surface of the component, and a ceiling facing the floor. The method further includes the step of applying a thermal barrier coating over at least a portion of a substrate. The method further includes the step of removing a portion of the thermal barrier coating covering the at least one aperture. The method further includes the step of forming with an additive manufacturing method one or both of a sharp-edged hood of the at least one aperture and at least one feature disposed on the floor.

公开(公告)号：US20190390553A1

公开(公告)日：2019-12-26

申请号：US16014092

申请日：2018-06-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jonathan Dwight Berry ,  Srikanth Chandrudu Kottilingam

IPC: F01D5/14 ,  F01D5/28

Abstract: The disclosure relates to turbomachine components which include one or more coating-capturing features for thermal insulation. A turbomachine component may include: a body having an exterior surface positioned within a hot gas path (HGP) section of a turbomachine; and a coating-capturing feature mounted on the exterior surface of the body and in thermal communication with the HGP section of the turbomachine, wherein the coating-capturing feature comprises: a first member positioned on the exterior surface of the body, the first member having at least one outer sidewall defining a first perimeter of the coating-capturing feature, a second member positioned on the first member and having at least one outer sidewall defining a second perimeter of the coating-capturing feature, wherein the first member separates the second member from the exterior surface of the body, and an indentation positioned between the first and second members.

公开(公告)号：US10512989B2

公开(公告)日：2019-12-24

申请号：US15438136

申请日：2017-02-21

Applicant: General Electric Company

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Brian Lee Tollison

IPC: C22C19/05 ,  B23K35/36 ,  B23K35/30 ,  B23K35/40 ,  B23K35/02 ,  C22C19/07 ,  B23K9/167 ,  F01D25/00 ,  C22C1/10 ,  C22C32/00 ,  C22C49/08 ,  C22C49/14 ,  C22C27/04 ,  B23K101/00

Abstract: An alloy includes a matrix that includes an amount of high-melting-temperature superalloy between about 30% and 95% by weight and an amount of low-melting-temperature superalloy between about 0% and 70% by weight. The alloy also includes an amount of a ceramic reinforcement material between about 2% and 50% by volume, dispersed in the matrix.

公开(公告)号：US10369630B2

公开(公告)日：2019-08-06

申请号：US15442184

申请日：2017-02-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Srikanth Chandrudu Kottilingam ,  Brian Lee Tollison ,  Yan Cui ,  Surinder Singh Pabla

IPC: B22F7/08 ,  B33Y80/00 ,  B33Y10/00 ,  B22F3/00 ,  F01D11/12 ,  B29C64/165 ,  B29K105/16 ,  B29L31/00 ,  B29K505/00

Abstract: A polyhedral-sealed article is disclosed including an article having a surface and a polyhedral seal layer disposed on the surface. The polyhedral seal layer includes a polyhedral structure having a plurality of polyhedral units. The polyhedral seal layer further includes at least one of a composition including an HTW composition, a heterogeneous pattern of the polyhedral structure, an orientation of the polyhedral structure extending from the surface at non-orthogonal angle, and at least one polyhedral unit conformation other than a hexagonal prism. A method for forming the polyhedral-sealed article is disclosed including forming a polyhedral seal layer by binder jet additive manufacturing and disposing the polyhedral seal layer on a surface of an article.