公开(公告)号：US20240033992A1

公开(公告)日：2024-02-01

申请号：US18343284

申请日：2023-06-28

Applicant: General Electric Company

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

IPC: B29C64/245 ,  B29C64/264 ,  B29C64/30 ,  B29C64/124

CPC classification number: B29C64/245 ,  B29C64/264 ,  B29C64/30 ,  B29C64/124 ,  B33Y10/00

Abstract: An additive manufacturing apparatus includes a support plate including a window. A stage is configured to hold one or more cured layers of the resin to form a component. A radiant energy device positioned on an opposite side of the support plate from the stage and operable to generate and project radiant energy in a patterned image through the window. An actuator is operably coupled with the stage and is configured to move the stage between a curing position and a removal position. The curing position can be offset from the removal position.

公开(公告)号：US20230302728A1

公开(公告)日：2023-09-28

申请号：US18184814

申请日：2023-03-16

Applicant: General Electric Company

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

IPC: B29C64/245 ,  B29C64/124 ,  B29C64/232 ,  B29C64/236 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/245 ,  B29C64/124 ,  B29C64/232 ,  B29C64/236 ,  B33Y10/00 ,  B33Y30/00

Abstract: An additive manufacturing apparatus includes a resin support configured to support a first resin and a second resin. A support plate includes a window. A stage is configured to hold one or more cured layers of the resin to form a component positioned opposite the support plate. A radiant energy device is positioned on an opposite side of the resin 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 in a Y-axis direction.

公开(公告)号：US20230050127A1

公开(公告)日：2023-02-16

申请号：US17883977

申请日：2022-08-09

Applicant: General Electric Company

Inventor： Meredith Elissa Dubelman ,  Christopher David Barnhill ,  William Joseph Steele ,  Xi Yang

IPC: B29C64/124 ,  B29C64/214 ,  B29C64/232 ,  B29C64/236 ,  B29C64/245 ,  B29C64/255 ,  B29C64/268 ,  B29C64/223 ,  B29C64/35 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: An additive manufacturing apparatus includes a stage configured to hold a component. A radiant energy is device operable to generate and project radiant energy in a patterned image. An actuator is configured to change a position of the stage relative to the radiant energy device. A deposition assembly is upstream of the stage and configured to deposit a resin on a resin support. The deposition assembly includes a reservoir housing configured to retain a volume of resin between the upstream wall and the downstream wall. The deposition assembly also includes an application device operably coupled with the reservoir housing. A computing system is operably coupled with the application device. The computing system is configured to intermittently initiate a flush operation between successive layers of the component, wherein the application device is moved from a first position to a second position during the flush operation.

公开(公告)号：US20220410482A1

公开(公告)日：2022-12-29

申请号：US17837302

申请日：2022-06-10

Applicant: General Electric Company

Inventor： Meredith Elissa Dubelman ,  Christopher David Barnhill ,  Xi Yang ,  William Joseph Steele ,  Brian Thomas Thompson

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

Abstract: An additive manufacturing apparatus can include a stage configured to hold one or more cured layers of resin that form a component. A radiant energy device can be operable to generate and project radiant energy in a patterned image. An actuator can be configured to change a relative position of the stage relative to the radiant energy device. A reclamation system can be downstream of the stage and can be configured to remove at least a portion of the resin from a resin support. The reclamation system can include a first collection structure configured to accept a resin support therethrough along a resin support movement direction. A first scraper is positioned within the first collection structure. The first scraper has an elongation axis that is offset from the resin support movement direction by an offset angle that is less than 90 degrees.

公开(公告)号：US11498267B2

公开(公告)日：2022-11-15

申请号：US16560479

申请日：2019-09-04

Applicant: General Electric Company

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

IPC: B29C64/129 ,  B29C64/245 ,  B29C64/35 ,  B29C64/264 ,  B29C64/241 ,  B33Y40/00 ,  B33Y10/00 ,  B33Y30/00

Abstract: A method for producing a component layer-by-layer includes: providing two or more resin handling assemblies, each including a resin support which has at least a portion which is transparent, each resin support defining a build surface located in a build zone of the respective assembly; executing a build cycle, including: depositing on each build surface radiant-energy-curable resin, the resin on each build surface being a unique material combination; positioning a stage relative to one of the build surfaces to define a layer increment; selectively curing the resin using applied radiant energy so as to define a cross-sectional layer of the component; separating the component from the build surface; cleaning at least one of the component and the stage; and repeating the cycle, for a plurality of layers, wherein at least one of the layers is cured in each of the build zone. Apparatus is described for carrying out the method.

公开(公告)号：US11433617B2

公开(公告)日：2022-09-06

申请号：US16261201

申请日：2019-01-29

Applicant: General Electric Company

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

IPC: B33Y50/02 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/124 ,  B29C64/20

Abstract: A method is provided for controlling an additive manufacturing process in which a layer of resin is deposited on a build surface and selectively cured via selective application of radiant energy so as to define the geometry of a cross-sectional layer of the component, such that uncured resin remaining on the build surface after curing defines a negative structure of the layer being cured. The method includes: using an imaging apparatus to produce an image of the negative structure; evaluating the image of the negative structure and controlling at least one aspect of the additive manufacturing process with reference to the image of the negative structure.

公开(公告)号：US11179891B2

公开(公告)日：2021-11-23

申请号：US16355144

申请日：2019-03-15

Applicant: General Electric Company

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

IPC: B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/264 ,  B29C64/236 ,  B29C64/129

Abstract: An additive manufacturing machine includes: a resin support which has at least a portion which is transparent, wherein the resin support defines a build surface; a material depositor operable to deposit a resin which is radiant-energy-curable onto the build surface; at least two build stations, each build station including: a stage positioned adjacent the build zone and configured to hold a stacked arrangement of one or more cured layers of the resin; one or more actuators operable to manipulate a relative position of the stage and the build surface; and at least one radiant energy apparatus positioned opposite to the stage, and operable to generate and project radiant energy in a predetermined pattern.

公开(公告)号：US20210339468A1

公开(公告)日：2021-11-04

申请号：US17375497

申请日：2021-07-14

Applicant: General Electric Company

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

IPC: B29C64/165 ,  B29C64/245 ,  B29C64/35 ,  B29C64/268

Abstract: A method for producing a functionally graded component layer-by-layer includes: depositing radiant-energy-curable resin on a build surface defined by a resin support, the resin containing filler including at least two groups of particles with different physical properties; allowing the filler to settle such that the groups of particles separate from each other, defining at least two regions within the resin; positioning a stage relative to the build surface so as to define a layer increment in the resin; selectively curing the resin using an radiant energy applied in a specific pattern so as to define the geometry of a cross-sectional layer of the component; moving the build surface and the stage relatively apart so as to separate the component from the build surface; repeating at least the steps of positioning and selectively curing for a plurality of layers, until the component is complete.

公开(公告)号：US20200262151A1

公开(公告)日：2020-08-20

申请号：US16280390

申请日：2019-02-20

Applicant: General Electric Company

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

IPC: B29C64/393 ,  B29C64/106 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method for forming a part layer by layer using an additive manufacturing apparatus. The additive manufacturing apparatus includes a resin support, a stage, a measuring system, and an actuator configured to change the relative position of the stage and the resin support. The method includes the steps of: performing an additive manufacturing cycle including the following steps: depositing an uncured layer of resin; moving the stage to a target location; curing the uncured layer of resin; and moving the stage away from the target location; repeating the additive manufacturing cycle; performing a measuring process wherein the measuring process includes the following steps: using the measuring system to take a measurement indicative of an actual position of a structure; comparing the actual position of the structure to an expected position of the structure to determine an error; and using the error to modify the target location.

公开(公告)号：US20200262150A1

公开(公告)日：2020-08-20

申请号：US16280336

申请日：2019-02-20

Applicant: General Electric Company

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

IPC: B29C64/393 ,  B29C64/135 ,  B29C64/245 ,  B29C64/268

Abstract: An additive manufacturing apparatus is disclosed. The apparatus includes a build surface, at least a portion of which is transparent. The apparatus includes a first material depositor operable to deposit a curable resin to form a deposited resin layer on the build surface. A first sensing device is configured to measure the thickness of the deposited resin layer; and wherein the at least one sensing device is configured to generate a signal indicative of the thickness of the deposited resin layer. The first sensing device can be connected to a computer such that the additive manufacturing apparatus is configured to control the thickness of the deposited resin layer. The thickness of the deposited resin layer can be controlled such that it varies from side to side, i.e. across the width of the deposited resin layer in the transverse direction along the x-axis. The thickness can also be controlled such that it varies with time, i.e., in the machine direction along the y-axis.