公开(公告)号：US11033987B2

公开(公告)日：2021-06-15

申请号：US15472693

申请日：2017-03-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Matthew J. Laylock ,  Brian Lee Tollison

IPC: B23K35/02 ,  C22C19/07 ,  C22C19/00 ,  B23K35/30 ,  C22C19/05 ,  B23K35/40 ,  B32B15/01 ,  B22F3/10 ,  B22F5/12 ,  B22F7/04 ,  B23K9/167 ,  B23K9/23 ,  B23K15/00 ,  B23K26/00 ,  C23C24/08 ,  B22F7/06

Abstract: A hybrid article is disclosed including a sintered coating disposed on and circumscribing the lateral surface of a core having a core material and a greater density than the sintered coating. The sintered coating includes more than about 95% up to about 99.5% of a first metallic particulate material including a first melting point, and from about 0.5% up to about 5% of a second metallic particulate 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, introducing a slurry having the metallic particulate materials into a gap between the lateral surface and the die, and sintering the slurry. A method for welding a workpiece is disclosed including the hybrid article serving as a weld filler.

公开(公告)号：US10981248B2

公开(公告)日：2021-04-20

申请号：US14087332

申请日：2013-11-22

Applicant: General Electric Company

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

IPC: B23K26/348

Abstract: Hybrid welding methods include directing a laser beam from a laser onto a first component that is vertically offset from a second component, and, directing a weld arc from an arc welder onto a weld joint between the first component and the second component to weld the first and second components together.

公开(公告)号：US10773310B2

公开(公告)日：2020-09-15

申请号：US15420939

申请日：2017-01-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Srikanth Chandrudu Kottilingam ,  Prabhjot Singh

IPC: B22F7/02 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/342 ,  B29C64/153 ,  B22F5/00 ,  B22F5/10 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  B23K26/70 ,  B22F3/105 ,  B22F7/00 ,  B23K15/00 ,  B23K26/00 ,  B28B1/00 ,  B23K103/10 ,  B23K103/04 ,  B23K103/00 ,  B23K103/14 ,  B23K103/16

Abstract: A method of additively manufacturing an article includes forming a first portion of the article by three-dimensional printing of a plurality of first layers from a first powder material cut having a first average particle size corresponding to a first feature resolution. The first layers have a first average layer thickness. The method also includes forming a second portion of the article by three-dimensional printing of a plurality of second layers from a second powder material cut having a second average particle size corresponding to a second feature resolution less than the first feature resolution. The second portion includes at least one feature. The second layers have a second average layer thickness less than the first average layer thickness. A three-dimensional printing system and an article formed from a powder material by three-dimensional printing are also disclosed.

公开(公告)号：US10767501B2

公开(公告)日：2020-09-08

申请号：US15134758

申请日：2016-04-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Joseph Anthony Weber ,  Srikanth Chandrudu Kottilingam ,  Brian Lee Tollison

IPC: F01D5/04 ,  F01D9/02 ,  F01D25/00

Abstract: An article, a component, and a method of making a component are provided. The article includes a contoured proximal face and a contoured distal face. The contoured proximal face is arranged and disposed to substantially mirror a contour of an end wall of a component. The component includes a first end wall, a second end wall, and an article including a contoured proximal face secured to at least one of the first end wall and the second end wall. The method of making a component includes forming an article having a proximal face and a distal face, contouring the proximal face of the article to form a contoured proximal face that substantially mirrors a contour of a first end wall or a second end wall of the component, and securing the contoured proximal face of the article to one of the first end wall and the second end wall.

公开(公告)号：US10731483B2

公开(公告)日：2020-08-04

申请号：US14962759

申请日：2015-12-08

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: F01D5/28 ,  F01D25/12 ,  F28F13/18

Abstract: A thermal management article is disclosed including a substrate and a first coating disposed on the substrate. The first coating includes a first coating surface and at least one passageway disposed between the substrate and the first coating surface. The at least one passageway defines at least one fluid pathway. A method for forming a thermal management article is disclosed including attaching at least one passageway to a substrate. The at least one passageway includes a passageway wall having a wall thickness and defines at least one fluid pathway. A first coating is applied to the substrate and the passageway wall, forming a first coating surface. The at least one passageway is disposed between the substrate and the first coating surface.

公开(公告)号：US10668575B2

公开(公告)日：2020-06-02

申请号：US15449298

申请日：2017-03-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  David Vincent Bucci ,  Brad Vantassel ,  Cem Eminoglu

IPC: B23K9/23 ,  B23K9/24 ,  B23K35/30 ,  C22C19/05 ,  B23K26/00 ,  B23K26/242 ,  B23K9/04 ,  B23K26/144 ,  B23K26/26 ,  B23K9/173 ,  B23K26/34 ,  B23K26/211 ,  B23K9/167 ,  B23K26/32 ,  B23K101/00 ,  B23K103/08 ,  B23K103/18

Abstract: A method of welding using a weld filler additive and a weld filler additive are provided. The method includes the step of welding the component with a filler additive comprising a sufficient amount of each of Co, Cr, Al, Ti, Mo, Fe, B, C, Nb, and Ni, the component including a hard-to-weld base alloy. The method further includes the step of forming an easy-to-weld target alloy on a surface of the component from the welding.

公开(公告)号：US20200061662A1

公开(公告)日：2020-02-27

申请号：US16110569

申请日：2018-08-23

Applicant: General Electric Company

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Jonathan Matthew Lomas ,  Brian Lee Tollison

IPC: B05C3/20 ,  B05D1/18 ,  B05D1/32

Abstract: A method of protecting a hole in a component during a coating process is disclosed. The method includes: placing a plug in the hole, the plug including a water insoluble core and a water soluble layer surrounding at least a portion of an outer surface of the metal core. A coating is applied over the plug and at least a portion of the component. The component is immersed in water to dissolve the water soluble layer, allowing removal of the water insoluble core. Removal of the coating from over the hole and the water insoluble core from within the hole may follow.

公开(公告)号：US10465521B2

公开(公告)日：2019-11-05

申请号：US15334483

申请日：2016-10-26

Applicant: General Electric Company

Inventor： Zachary John Snider ,  Gregory Thomas Foster ,  Srikanth Chandrudu Kottilingam

IPC: F01D5/14 ,  F01D5/18 ,  F01D5/28

Abstract: A turbine airfoil for a rotating blade or stationary nozzle vane includes an airfoil body including a leading edge and a trailing edge. A coolant supply passage extends within the airfoil body and a coolant return passage extends within the airfoil body, with each passage having respective a supply and return connection passage to an exterior surface of the airfoil body. A seat in the exterior surface of the airfoil body receives a cover that includes a trench on an interior surface thereof to fluidly connect the return connection passage and the supply connection passage and form a coolant passage for the airfoil body. Various arrangements of cooling circuits may be created with the cover that allow for reuse of the coolant.

公开(公告)号：US10145000B2

公开(公告)日：2018-12-04

申请号：US15167201

申请日：2016-05-27

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: C23C4/134 ,  C23C4/129 ,  C23C4/06 ,  C23C24/04 ,  C23C4/12 ,  C23C4/18 ,  C23C4/073 ,  F01D5/28 ,  B22F3/11 ,  B22F5/00 ,  B22F5/04 ,  B22F7/08 ,  C23C28/00 ,  B22F3/24

Abstract: A thermally dissipative article and a method of forming a thermally dissipative article are disclosed. The thermally dissipative article includes a component, a porous material formed in a layer on the component. The method of forming a thermally dissipative article includes providing a metal powder mixture and a soluble particulate mixture which forms a porous coating upon sintering and immersion in a solvent to remove the soluble particulate.

公开(公告)号：US10029299B2

公开(公告)日：2018-07-24

申请号：US14794839

申请日：2015-07-09

Applicant: General Electric Company

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  David Edward Schick

IPC: B22C9/02 ,  B22C9/10 ,  B22C9/24 ,  B22C1/00 ,  B22C1/16 ,  B22D25/02 ,  B22C9/04 ,  B22D29/00 ,  B33Y10/00 ,  B33Y80/00

Abstract: The present application provides a method of producing a component. The method may include the steps of creating a dissolvable ceramic material mold in an additive manufacturing process, casting a metallic material in the dissolvable ceramic material mold, creating the component, and dissolving the dissolvable ceramic material. The component may be a turbine component.