公开(公告)号：US10364189B2

公开(公告)日：2019-07-30

申请号：US15586390

申请日：2017-05-04

Applicant: General Electric Company

Inventor： Anthony Yu-Chung Ku ,  Xi Yang ,  Tao Li ,  John Patrick Pollinger ,  Zachary Kenneth Mowry ,  Frederic Joseph Klug

IPC: C04B35/185 ,  C04B41/53 ,  B28B1/24 ,  B28B11/24 ,  C04B35/64 ,  C04B41/00 ,  B28B7/42 ,  C04B41/80 ,  C22C9/10 ,  C04B111/00

Abstract: Methods for forming ceramic cores are disclosed. A ceramic core formed using the method of the present application includes a silica depletion zone encapsulating an inner zone. The inner zone includes mullite and the silica depletion zone includes alumina. The method includes heat-treating a ceramic body in a non-oxidizing atmospheric condition for an effective temperature and time combination at a pressure less than 10−2 atmosphere to form the silica depletion zone at a surface of the ceramic core.

公开(公告)号：US10173932B1

公开(公告)日：2019-01-08

申请号：US13731513

申请日：2012-12-31

Applicant: General Electric Company

Inventor： Russell Ryder Dennison ,  Robert Peter Hanet ,  Jerod Curtis Kruse ,  Xi Yang

IPC: C04B35/622

Abstract: A disposable core die includes a first portion defining an inlet configured to receive a slurry therethrough, a second portion integrally formed downstream from the first portion and configured to receive the slurry from the first portion, and a third portion integrally formed downstream from the second portion. The second portion includes a plurality of hollow tubes that are substantially coaxially aligned and have a wall thickness within a range defined between about 0.1 mm and about 0.5 mm, and the third portion defines an outlet configured to discharge excess slurry from the second portion.

公开(公告)号：US20240408876A1

公开(公告)日：2024-12-12

申请号：US18813323

申请日：2024-08-23

Applicant: General Electric Company

Inventor： William C. Alberts ,  Vadim Bromberg ,  Kwok Pong Chan ,  Robert Edgar Estes ,  Jacob Mayer ,  Joshua Tyler Mook ,  Janet Mekker ,  William Cosmo Murphy ,  Arunkumar Natarajan ,  Mary Kathryn Thompson ,  Xi Yang ,  Travis Sands

IPC: B41J2/165 ,  B22F10/14 ,  B22F10/38 ,  B22F10/70 ,  B22F12/90 ,  C09D9/00 ,  C09D11/107 ,  C09D11/30

Abstract: Embodiments of the present disclosure are directed to additive manufacturing apparatuses, cleaning stations incorporated therein, and methods of cleaning using the cleaning stations.

公开(公告)号：US20240109250A1

公开(公告)日：2024-04-04

申请号：US18065862

申请日：2022-12-14

Applicant: General Electric Company

Inventor： Xi Yang ,  Christopher David Barnhill ,  Trent William Muhlenkamp ,  Joseph Edward Hampshire

IPC: B29C64/245 ,  B29C64/232 ,  B29C64/236 ,  B29C64/264

CPC classification number: B29C64/245 ,  B29C64/232 ,  B29C64/236 ,  B29C64/264 ,  B33Y30/00

Abstract: An additive manufacturing apparatus includes a support configured to support a resin and a constituent material. A support plate includes a window. A stage is configured to hold one or more composite layers of the resin and the constituent material to form a composite component positioned opposite the support plate. A radiant energy device is positioned on an opposite side of the support from the stage and is operable to generate and project radiant energy in a patterned image through the window. An actuator assembly is configured to move the stage in a Z-axis direction and a Y-axis direction.

公开(公告)号：US20240100774A1

公开(公告)日：2024-03-28

申请号：US18524972

申请日：2023-11-30

Applicant: General Electric Company

Inventor： Mary Kathryn Thompson ,  Meredith Elissa Dubelman ,  Christopher David Barnhill ,  Xi Yang ,  Trent William Muhlenkamp ,  William Joseph Steele

IPC: B29C64/236 ,  B29C64/124 ,  B29C64/245 ,  B29C64/357 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/00

CPC classification number: B29C64/236 ,  B29C64/124 ,  B29C64/245 ,  B29C64/357 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/00

Abstract: An additive manufacturing apparatus includes a feed module and a take-up module that are configured to operably couple with a foil. A stage is configured to hold one or more cured layers of a resin that form a component. A radiant energy device is positioned opposite to the at least one stage. The radiant energy device is operable to generate and project radiant energy in a predetermined pattern. An actuator is configured to change a relative position of the at least one stage and the foil. An accumulator is positioned between the feed module and the take-up module. The accumulator is configured to retain an intermediate portion of the foil to allow a first portion of the foil upstream of the accumulator to move at a first speed and a second portion of the foil downstream of the accumulator to move at a second speed during a defined time period.

公开(公告)号：US20240033810A1

公开(公告)日：2024-02-01

申请号：US18482060

申请日：2023-10-06

Applicant: General Electric Company

Inventor： Douglas Gerard Konitzer ,  Brian David Przeslawski ,  Xi Yang ,  Meredith Elissa Dubelman

IPC: B22C9/10 ,  B22D29/00

CPC classification number: B22C9/10 ,  B22C9/106 ,  B22D29/002 ,  B33Y10/00

Abstract: A method is provided for casting a component. Accordingly, a casting core is provided within a cavity of a component mold. The casting core defines an inner component shape and includes a core wall. The core wall defines a core outer surface and a core inner surface disposed opposite the core outer surface. The core inner surface defines a core cavity. The casting core also includes a removal facilitation feature. The component is cast within the cavity of the component mold with the casting core positioned therein. The cast component is removed from the component mold and the casting core is removed from the cast component.

公开(公告)号：US20230393554A1

公开(公告)日：2023-12-07

申请号：US18453746

申请日：2023-08-22

Applicant: General Electric Company

Inventor： Daniel Endecott Osgood ,  Tingfan Pang ,  Gregory Terrence Garay ,  Xi Yang ,  Daniel Lee Durstock ,  Steven Robert Brassfield ,  William Charles Herman

IPC: G05B19/4099 ,  B29C64/393 ,  G06F30/10

CPC classification number: G05B19/4099 ,  B29C64/393 ,  G06F30/10 ,  G05B2219/35036 ,  G05B2219/35134 ,  G05B2219/49007

Abstract: A method of forming a component that includes identifying an acute angle in an original model that is a virtual model of the component. The acute angle is defined by a first surface and a second surface. The method includes compensating the original model at the acute angle to create a compensated acute angle in a compensated model. The method also includes forming, by additive manufacturing, the component based upon the compensated model, where the formed component is more alike the original model than the compensated model.

公开(公告)号：US20230073194A1

公开(公告)日：2023-03-09

申请号：US17889852

申请日：2022-08-17

Applicant: General Electric Company

Inventor： Mary Kathryn Thompson ,  Arunkumar Natarajan ,  Kwok Pong Chan ,  Vadim Bromberg ,  Xi Yang ,  Ananda Barua ,  William C. Alberts

IPC: B29C64/165 ,  B29C64/209 ,  B29C64/336 ,  B33Y10/00

Abstract: Various embodiments provide a method of additively manufacturing a part including depositing a layer of a powder on a working surface, depositing a binder solution on the layer of the powder at first locations, and depositing a sintering aid solution on the layer of the powder at second locations. The sintering aid solution comprises a sintering aid in a solvent. In various embodiments, the sintering aid enables an increased brown strength as compared to parts containing unbound powder. The method enables binders that provide high green strength to be used at the edges of the part, while also balancing a shortened debind time with an increased brown strength. Embodiments in which binder solution is deposited according to a predetermined pattern at second locations are also described.

公开(公告)号：US11529672B2

公开(公告)日：2022-12-20

申请号：US17228168

申请日：2021-04-12

Applicant: General Electric Company

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

IPC: B22C9/10 ,  B22C9/04 ,  B22C9/24 ,  B22D29/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y80/00 ,  C04B35/622 ,  B28B7/34

Abstract: A method of forming a cast component and a method of forming a casting mold is described herein. The ceramic core-shell mold includes at least first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may be manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.

公开(公告)号：US11446860B2

公开(公告)日：2022-09-20

申请号：US16542522

申请日：2019-08-16

Applicant: General Electric Company

Inventor： Mary Kathryn Thompson ,  Meredith Elissa Dubelman ,  Christopher Barnhill ,  Xi Yang

IPC: B29C64/147 ,  B29C64/124 ,  B29C64/245 ,  B29C64/232 ,  B29C64/223 ,  B29C64/218 ,  B29C64/264 ,  B33Y30/00 ,  B33Y10/00

Abstract: An additive manufacturing apparatus configured to produce a component layer by layer. The manufacturing apparatus includes a support structure, a stage that is positioned opposite the support structure. The stage is configured to hold a stacked arrangement of one or more cured layers of a resin. The apparatus also includes one or more actuators operable to move the stage away from the support structure, and a radiant energy apparatus is positioned opposite the stage such that the support structure is positioned between the radiant energy apparatus and the stage. The radiant energy apparatus is operable to generate and project radiant energy through the support structure on the resin in a predetermined pattern. a foil separation device that includes at least one holddown device is configured such that the foil contacts the at least one holddown device as the stage is moved away from the support structure.