公开(公告)号：US20230050740A1

公开(公告)日：2023-02-16

申请号：US17973421

申请日：2022-10-25

Applicant: General Electric Company

Inventor： Yan Cui ,  Michael Arnett ,  Matthew Laylock ,  Brian Lee Tollison

IPC: B23K1/00 ,  B23K1/19 ,  B23K1/20 ,  B23P6/04

Abstract: A method includes positioning a braze material along a defect of a component of a turbine system, positioning a cover over the braze material, and focusing a heat source on the cover to melt the braze material along the defect.

公开(公告)号：US11123796B2

公开(公告)日：2021-09-21

申请号：US15581678

申请日：2017-04-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Srikanth Chandrudu Kottilingam ,  Yan Cui ,  Brian Lee Tollison ,  David Edward Schick

IPC: B22F10/10 ,  B22F5/00 ,  B22F5/04 ,  B33Y10/00 ,  B22F3/10 ,  B29C64/165 ,  B33Y80/00 ,  B22F7/08 ,  B22F3/15 ,  B22F7/06 ,  C22C1/04

Abstract: A method of making a pre-sintered preform, including forming a pre-sintered preform by a binder jet additive manufacturing technique. The binder jet additive manufacturing technique includes depositing a first powder layer including a first powder and a second powder followed by depositing a first binder at a pre-determined location of the first powder layer. The binder jet additive manufacturing technique also includes depositing a second powder layer over at least a portion of the first powder layer followed by depositing a second binder at a pre-determined location of the second powder layer. At least a portion of the first binder and at least a portion of the second binder is cured forming a green part. The green part is then densified to form a pre-sintered preform near net shape component.

公开(公告)号：US20210246534A1

公开(公告)日：2021-08-12

申请号：US16784781

申请日：2020-02-07

Applicant: General Electric Company

Inventor： Yan Cui ,  Jon Conrad Schaeffer ,  Michael Douglas Arnett ,  Matthew Joseph Laylock ,  Brian Lee Tollison

IPC: C22C19/05 ,  F01D5/14

Abstract: A nickel-based superalloy composition including by weight percent: Cobalt 7.5; Chromium 9.75; Aluminum 5.45; Titanium 1.0; Niobium 3.5; Tungsten 6.0; Molybdenum 1.5; Carbon 0.08; Hafnium 0.15; Boron 0.01; and Nickel 65.0; and incidental impurities.

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：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.

公开(公告)号：US10232444B2

公开(公告)日：2019-03-19

申请号：US15477846

申请日：2017-04-03

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: B22F5/00 ,  C08J5/12 ,  C23C10/48 ,  B21B1/02 ,  B23K35/00 ,  B23K1/00 ,  F01D5/00 ,  F01D5/28 ,  F01D9/02

Abstract: A clad article is disclosed including an article and a cladding layer. The article includes a surface layer, at least one cavity disposed within the article below the surface layer, and at least one microcrack disposed in the surface layer. The surface layer includes an HTW alloy. The cladding layer is disposed on a surface of the surface layer, and is formed from a PSP brazed to the article. The cladding layer is disposed over the at least one microcrack. A method for forming the clad article is disclosed including disposing the PSP on the article and brazing the PSP to the article. Brazing the PSP to the article forms the cladding layer disposed on the article over the at least one microcrack.

公开(公告)号：US10086459B2

公开(公告)日：2018-10-02

申请号：US15793318

申请日：2017-10-25

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: B23K1/00 ,  B23K9/04 ,  B23K26/34 ,  B32B15/01 ,  B23K10/02 ,  B23K15/00 ,  B22F5/00 ,  B22F5/04 ,  B22F7/06 ,  B22F7/04

Abstract: A hybrid article is disclosed including a coating disposed on and circumscribing the lateral surface of a core having a core material. The coating includes about 35% to about 95% of a first metallic material having a first melting point, and about 5% to about 65% of a second metallic material having a second melting point lower than the first melting point. A method for forming the hybrid article is disclosed including disposing the core in a die, forming a gap between the lateral surface and the die, introducing a slurry having the metallic materials into the gap, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture. Closing the aperture includes brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or a combination thereof.

公开(公告)号：US10035329B2

公开(公告)日：2018-07-31

申请号：US15621606

申请日：2017-06-13

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: B32B15/01 ,  B22F7/00 ,  B22F7/06 ,  B23K9/04 ,  B23K15/00 ,  B23K10/02 ,  B23K1/00 ,  B22F5/00

CPC classification number: B32B15/01 ,  B22F5/009 ,  B22F5/04 ,  B22F7/062 ,  B22F2007/047 ,  B22F2007/068 ,  B23K1/0018 ,  B23K9/04 ,  B23K10/027 ,  B23K15/0086 ,  B23K26/34 ,  B23K2101/001 ,  B23K2101/04 ,  B23K2101/06 ,  B23K2101/34 ,  B23K2103/26

Abstract: A hybrid article is disclosed including a coating circumscribing the lateral surface of a hollow core having a core material and a channel disposed within the lateral surface. The coating includes about 35% to about 95% of a first metallic material, and about 5% to about 65% of a second metallic material with a lower melting point than the first metallic material. A method for forming the hybrid article is disclosed including disposing the hollow core in a die, forming a gap between the lateral surface and the die, introducing a slurry having the metallic materials into the gap, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture, and brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or a combination thereof.