公开(公告)号：US20190039133A1

公开(公告)日：2019-02-07

申请号：US15670520

申请日：2017-08-07

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan CUI ,  Srikanth Chandrudu KOTTILINGAM ,  Brian Lee TOLLISON ,  Brian Leslie HENDERSON

IPC: B22F1/02 ,  B22F1/00 ,  B22F3/10 ,  C22C19/05 ,  B23K1/00

Abstract: A process includes agitating at least one core of a core alloy together with a braze binder to form at least one coated core comprising the at least one core coated with a first layer of the braze binder. The process also includes agitating the at least one coated core together with a powder composition comprising a first metal powder of a first alloy and a second metal powder of a second alloy to form a green preform having a first powder composition layer of the first alloy and the second alloy. The process further includes sintering the green preform to form at least one hybrid pre-sintered preform. A green preform includes a core, a first layer of a braze binder coated on the core, and a powder composition coated on the first layer. A hybrid pre-sintered preform includes a core and a first layer sintered to the core.

公开(公告)号：US20180242405A1

公开(公告)日：2018-08-23

申请号：US15440492

申请日：2017-02-23

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brian Leslie HENDERSON ,  Yan CUI ,  Daniel James DORRIETY ,  Gary Charles SHUBERT ,  Paul Albert COOK

IPC: H05B6/10 ,  H05B6/40 ,  B23K1/002

CPC classification number: H05B6/101 ,  B23K1/0018 ,  B23K1/002 ,  B23K1/19 ,  B23K2101/001 ,  B23K2103/05 ,  B23P6/002 ,  B23P6/007 ,  F01D5/005 ,  H05B6/40

Abstract: A method of brazing a treatment area of a load-bearing component includes applying a repair material over the treatment area of the component and positioning an induction brazing coil having a geometry corresponding to the treatment area over the repair material and the treatment area. The method further includes heating the repair material utilizing the induction brazing coil to a temperature sufficient to cause at least partial melting of the repair material, thereby effecting a brazed joint between the treatment area and the repair material.

公开(公告)号：US20180313226A1

公开(公告)日：2018-11-01

申请号：US15499481

申请日：2017-04-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brian Leslie HENDERSON ,  Yan CUI ,  Daniel James DORRIETY ,  Ravikumar RAYACHURI ,  Paul Albert COOK ,  Abdul Rahman SHARIFF

IPC: F01D25/00 ,  F01D9/04

CPC classification number: F01D25/005 ,  B23K35/0244 ,  B23P6/005 ,  B23P15/006 ,  F01D5/005 ,  F01D5/288 ,  F01D9/023 ,  F01D9/04 ,  F05D2220/30 ,  F05D2230/10 ,  F05D2230/22 ,  F05D2230/237 ,  F05D2230/40 ,  F05D2230/60 ,  F05D2300/111 ,  F05D2300/171 ,  F23R3/002 ,  F23R2900/00019

Abstract: A method for treating a turbine diaphragm and a treated turbine diaphragm are provided. The method includes the step of removing a portion of the turbine diaphragm. The method further includes the step of forming a coupon having a geometry that corresponds to the portion of the turbine diaphragm removed. The method further includes joining the coupon to the turbine diaphragm. At least a portion of the coupon is a pre-sintered preform. The treated turbine diaphragm includes a substrate and a coupon joined to the substrate, wherein at least a portion of the coupon is a pre-sintered preform.

公开(公告)号：US20240003014A1

公开(公告)日：2024-01-04

申请号：US17856233

申请日：2022-07-01

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brian Leslie HENDERSON ,  Bruce Edward DULIN

IPC: C23C24/08

CPC classification number: C23C24/087 ,  C23C30/00

Abstract: A method and system for thermal spraying braze alloy materials onto a nickel-based component to facilitate a high density brazed joint with low discontinuities is disclosed. The method and system utilize a high melt braze alloy material and a low melt braze alloy material. A thermal spraying application sprays the high melt braze alloy material and the low melt braze alloy onto a surface of a nickel-based component containing a damaged portion. The sprayed high melt braze alloy material and the low melt braze alloy form a solidified deposit within the damaged portion of the nickel-based component. The solidified deposit is a homogeneous braze coating containing the high melt braze alloy and the low melt braze alloy. The homogeneous braze coating facilitates a high density brazed joint with low discontinuities in the damaged portion of the nickel-based component.

公开(公告)号：US20180161902A1

公开(公告)日：2018-06-14

申请号：US15373895

申请日：2016-12-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan CUI ,  Brian Leslie HENDERSON ,  Brian Lee TOLLISON ,  Srikanth Chandrudu KOTTILINGAM

IPC: B23K1/00 ,  B23K1/002 ,  B23K1/008 ,  B23K35/02 ,  B23K35/30 ,  C22C19/05

CPC classification number: B23K1/0018 ,  B23K1/008 ,  B23K1/20 ,  B23K2101/001 ,  B23K2101/06

Abstract: A method includes heating a brazing material in a braze chamber of a first component to a braze temperature to melt the brazing material. The brazing material flows from the braze chamber, through at least one internal channel of the first component, and into a braze gap between the first component and a second component to braze the first component to the second component. A brazed article includes a first component having a braze chamber and at least one internal channel extending from the braze chamber to an external surface, a second component having at least one braze surface separated from the external surface of the first component by a braze gap, and a braze material in the braze gap. A braze assembly includes a first component, a second component, and a brazing material in the braze chamber.

公开(公告)号：US20170136569A1

公开(公告)日：2017-05-18

申请号：US14943558

申请日：2015-11-17

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brian Leslie HENDERSON ,  Daniel James DORRIETY ,  Alioune DIENG ,  Lawrence J. WHIMS

IPC: B23K11/11 ,  B23K11/00

Abstract: A fixture and method for resistance welding of at least one pad to at least one surface of an article is disclosed. The method includes mounting the article in the fixture, placing the at least one pad on the at least one surface of the article, positioning a first electrode of a resistance welding apparatus to the at least one pad and a second electrode of the resistance welding apparatus to the article, and applying pressure and electric current across the at least one pad and the at least one surface. The fixture includes a first, second and third support element, which, respectively, include a first, second and third contact surface being adapted and disposed to support a first, second and third portion of the article. The first, second and third contact surfaces are each inelastic and electrically insulating. The fixture is arranged and disposed to non-rotatably cradle the article.

公开(公告)号：US20180282829A1

公开(公告)日：2018-10-04

申请号：US15475661

申请日：2017-03-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan CUI ,  Srikanth Chandrudu KOTTILINGAM ,  Brian Lee TOLLISON ,  Brian Leslie HENDERSON ,  Cem Murat EMINOGLU

IPC: C21D1/30 ,  C22F1/10 ,  C22F1/18 ,  C22F1/08

CPC classification number: C21D1/30 ,  C22F1/08 ,  C22F1/10 ,  C22F1/183 ,  F05D2230/40

Abstract: A method for counteracting tensile stress in an article is disclosed, including heating the article and applying compressive stress to the article along a compressive stress vector, the compressive stress vector including a compressive stress vector component opposite in direction to a tensile stress vector of a thermally-induced tensile stress of the article. The compressive stress is applied by thermally-induced autogenous pressure by a fixture contacting the article. A fixture for counteracting tensile stress is disclosed, including a first compression member and a second compression member, and a position lock connecting the first compression member to the second compression member and reversibly fixing the first compression member relative to the second compression member. The first compression member and the second compression member include compressive surfaces having mating conformations for surfaces of an article. The position lock includes a material composition.

公开(公告)号：US20180209288A1

公开(公告)日：2018-07-26

申请号：US15416691

申请日：2017-01-26

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brian Leslie HENDERSON ,  Paul A. COOK ,  Daniel James DORRIETY

IPC: F01D11/00 ,  B23K1/00 ,  B23K35/30 ,  B32B15/01

CPC classification number: F01D11/005 ,  B23K1/0018 ,  B23K35/3033 ,  B23K35/3046 ,  B32B15/017 ,  F01D5/005 ,  F05D2230/237

Abstract: A braze system is disclosed, including a first surface, a second surface, a gap disposed between the first surface and the second surface, a capillary matrix disposed in the gap, and a braze material disposed in contact with the capillary matrix. The capillary matrix includes a matrix structure forming a plurality of capillaries. A brazed article is disclosed in which the braze material is disposed within the plurality of capillaries and contacts the first surface and the second surface. The braze material, the capillary matrix, the first surface, the second surface, and the gap form a brazed portion including less than about 20% voiding. A method for forming a brazed article includes disposing the capillary matrix into the gap, and infusing a braze material into the plurality of capillaries and in contact with the first surface and the second surface, forming the brazed portion.

公开(公告)号：US20180200817A1

公开(公告)日：2018-07-19

申请号：US15410460

申请日：2017-01-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brian Leslie HENDERSON ,  Paul A. COOK ,  Daniel James DORRIETY ,  Lawrence James WHIMS

IPC: B23K1/00 ,  B23K1/20 ,  B23K3/06 ,  F01D9/02 ,  F01D25/24

CPC classification number: B23K1/0018 ,  B23K1/0008 ,  B23K1/20 ,  F01D9/02 ,  F01D25/24 ,  F05D2220/32 ,  F05D2230/237 ,  F05D2300/175 ,  F05D2300/177 ,  F05D2300/6032

Abstract: A method of brazing includes placing a non-foam matrix in a gap and applying a molten braze material to the gap such that the molten braze material flows into the gap and through the non-foam matrix by capillary action to fill the gap and cools to form a solid braze in the gap. A brazed article includes at least one component defining a gap, a non-foam matrix in the gap and a solid braze interspersed through the non-foam matrix. The non-foam matrix and the solid braze fill the gap.