公开(公告)号：US20240001443A1

公开(公告)日：2024-01-04

申请号：US18467778

申请日：2023-09-15

Applicant: General Electric Company

Inventor： Douglas Gerard Konitzer ,  Andrew William Emge ,  Andrew Ezekiel Wessman

IPC: B22F10/28 ,  B22F10/66 ,  B22F10/64 ,  B22F12/41 ,  B22F10/36 ,  B22F12/47 ,  B22F10/38 ,  B22F5/04

CPC classification number: B22F10/28 ,  B22F10/66 ,  B22F10/64 ,  B22F12/41 ,  B22F10/36 ,  B22F12/47 ,  B22F10/38 ,  B22F5/04 ,  B33Y10/00

Abstract: A method for additively manufacturing components includes additively printing a metallic preform such that the preform contains a predetermined amount of porosity. Furthermore, the method includes working the additively printed preform such that the preform incurs a predetermined amount of deformation. Moreover, the method includes heat treating the worked preform to form a final component.

公开(公告)号：US11235491B2

公开(公告)日：2022-02-01

申请号：US16531731

申请日：2019-08-05

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Xi Yang ,  Michael Cole ,  Michael Brown ,  Gregory Terrence Garay ,  Tingfan Pang ,  Brian David Przeslawski ,  Douglas Gerard Konitzer

IPC: B22C9/04 ,  B22C9/10 ,  B28B1/00 ,  B33Y10/00 ,  B28B7/28 ,  F01D5/14 ,  B22C7/02 ,  B22C9/08 ,  B28B7/34 ,  F01D5/18

Abstract: Integrated core-shell investment casting molds include a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade, stator vane, or shroud.

公开(公告)号：US11130170B2

公开(公告)日：2021-09-28

申请号：US15887601

申请日：2018-02-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Gregory Terrence Garay ,  Meredith Dubelman ,  Xi Yang ,  Tingfan Pang ,  Michael Scott Cole ,  Brian David Przeslawski ,  Douglas Gerard Konitzer ,  Nicole Barba ,  Kirk Gallier ,  Brian Keith

IPC: B22C9/22 ,  B22D29/00 ,  B28B1/00 ,  B33Y10/00 ,  F01D5/18 ,  F01D9/02 ,  B33Y80/00 ,  C30B29/02

Abstract: Integrated core-shell investment casting molds that provide tongue or groove structures corresponding, respectively, to groove or tongue structures in the surface of the turbine blade or stator vane, including in locations that are otherwise inaccessible provide a pathway to restrict cooling flow between turbine blades to the flowpath.

公开(公告)号：US10814428B2

公开(公告)日：2020-10-27

申请号：US15867327

申请日：2018-01-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Douglas Gerard Konitzer

IPC: B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/00 ,  B23K15/00 ,  B23K26/082

Abstract: A method for producing a layered object includes irradiating a surface layer of the object with an energy beam to create an interaction zone on the surface layer. The method also includes providing relative motion between the energy beam and the surface layer so as to control the interaction between the energy beam and the surface layer. The method also includes introducing feedstock into the interaction zone so that the feedstock melts and forms a hot solidified surface after leaving the interaction zone. The method also includes applying mechanical energy to the hot solidified surface.

公开(公告)号：US10814395B2

公开(公告)日：2020-10-27

申请号：US15878584

申请日：2018-01-24

Applicant: General Electric Company

Inventor： David Richard Barnhart ,  Douglas Gerard Konitzer ,  Rajendra Madhukar Kelkar

IPC: B22F3/105 ,  B33Y30/00 ,  B23K26/12 ,  B23K26/342

Abstract: An additive manufacturing machine includes a heated gas circulation system for regulating the temperature of additive powder throughout a powder bed and parts formed therein. The additive manufacturing machine includes a build platform defining a plurality of perforations and a heated gas supply that provides a flow of heated air into a distribution manifold and through the plurality of perforations and the powder bed to minimize temperature gradients within the powder bed which might otherwise result in distortion, thermal stresses, or cracking in the finished part.

公开(公告)号：US10717130B2

公开(公告)日：2020-07-21

申请号：US15439548

申请日：2017-02-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Gregory Terrence Garay ,  Mark Kevin Meyer ,  Douglas Gerard Konitzer ,  William Thomas Carter

IPC: B22F5/04 ,  B22F3/105 ,  B22F7/08 ,  B22F7/06 ,  B22D29/00 ,  B33Y10/00 ,  B33Y80/00 ,  F01D5/00 ,  F01D5/18 ,  B22D25/02 ,  B22F5/10

Abstract: Methods of manufacturing or repairing a turbine blade or vane are described. The airfoil portions of these turbine components are typically manufactured by casting in a ceramic mold, and a surface made up of the cast airfoil and at the least the ceramic core serves as a build surface for a subsequent process of additively manufacturing the tip portions. The build surface is created by removing a top portion of the airfoil and the core, or by placing an ultra-thin shim on top of the airfoil and the core. The overhang projected by the shim is subsequently removed. These methods are not limited to turbine engine applications, but can be applied to any metallic object that can benefit from casting and additive manufacturing processes. The present disclosure also relates to finished and intermediate products prepared by these methods.

公开(公告)号：US10443115B2

公开(公告)日：2019-10-15

申请号：US14830759

申请日：2015-08-20

Applicant: General Electric Company

Inventor： William Thomas Carter ,  Todd Jay Rockstroh ,  Douglas Gerard Konitzer

IPC: C22F1/10 ,  B23K26/03 ,  B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B23K26/144 ,  B23K26/70 ,  B23K26/00 ,  B23K26/14 ,  B22F3/105 ,  B22F5/04 ,  B33Y50/02 ,  B23K101/00 ,  B23K103/08 ,  F01D5/18 ,  F01D5/28 ,  F01D9/02

Abstract: Methods for direct writing of single crystal super alloys and metals are provided. The method can include: heating a substrate positioned on a base plate to a predetermined temperature using a first heater; using a laser to form a melt pool on a surface of the substrate; introducing a superalloy powder to the melt pool; measuring the temperature of the melt pool; receiving the temperature measured at a controller; and using an auxiliary heat source in communication with the controller to adjust the temperature of the melt pool. The predetermined temperature is below the substrate's melting point. The laser and the base plate are movable relative to each other, with the laser being used for direct metal deposition. An apparatus is also generally provided for direct writing of single crystal super alloys and metals.

公开(公告)号：US20190224749A1

公开(公告)日：2019-07-25

申请号：US15878584

申请日：2018-01-24

Applicant: General Electric Company

Inventor： David Richard Barnhart ,  Douglas Gerard Konitzer ,  Rajendra Madhukar Kelkar

IPC: B22F3/105 ,  B33Y30/00

Abstract: An additive manufacturing machine includes a heated gas circulation system for regulating the temperature of additive powder throughout a powder bed and parts formed therein. The additive manufacturing machine includes a build platform defining a plurality of perforations and a heated gas supply that provides a flow of heated air into a distribution manifold and through the plurality of perforations and the powder bed to minimize temperature gradients within the powder bed which might otherwise result in distortion, thermal stresses, or cracking in the finished part.

公开(公告)号：US09657387B1

公开(公告)日：2017-05-23

申请号：US15140822

申请日：2016-04-28

Applicant: General Electric Company

Inventor： Michael David Clark ,  Douglas Gerard Konitzer

IPC: C23C14/30 ,  C23C14/22

CPC classification number: C23C14/221 ,  C23C14/025 ,  C23C14/06 ,  C23C14/28 ,  C23C14/30 ,  C23C28/00 ,  C23C28/321 ,  C23C28/3215 ,  C23C28/345 ,  C23C28/3455

Abstract: Methods are provided for forming a thermal barrier coating system on a surface of a component. The method can include introducing the component into a coating chamber, where a first ceramic source material and a second ceramic source material are positioned within the coating chamber of a physical vapor deposition apparatus. An energy source is directed onto the first ceramic source material to vaporize the first ceramic source material to deposit a first layer on the component. The energy source is alternated between the first ceramic source material and the second ceramic source material to form a blended layer on the first layer.

公开(公告)号：US20140119979A1

公开(公告)日：2014-05-01

申请号：US13665280

申请日：2012-10-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Wei-Jun Zhang ,  Douglas Gerard Konitzer ,  Joshua Leigh Miller

IPC: C22C19/05 ,  C22C30/00

CPC classification number: C22C19/057 ,  C30B11/00 ,  C30B29/52 ,  F01D5/28 ,  F05C2201/0466

Abstract: A nickel-based superalloy composition includes from about 5 to about 7 wt % aluminum, from about 4 to about 8 wt % tantalum, from about 3 to about 8 wt % chromium, from about 3 to about 7 wt % tungsten, from 1 to about 5 wt % molybdenum, from 1.5 to about 5 wt % rhenium, from 5 to about 14 wt % cobalt, from about 0 to about 1 wt % hafnium, from about 0.01 to about 0.03 wt % carbon, from about 0.002 to about 0.006 wt % boron, and balance nickel and incidental impurities. The composition may exhibit a sustained peak low cycle fatigue life at 1800° F./45 ksi of at least about 4000 cycles. The nickel-based superalloy composition may be used in single-crystal or directionally solidified superalloy articles, such as a blade, nozzle, a shroud, a splash plate, and a combustor of a gas turbine engine.