公开(公告)号：US20220314487A1

公开(公告)日：2022-10-06

申请号：US17608810

申请日：2020-05-22

Applicant: General Electric Company

Inventor： Vadim Bromberg ,  John Sterle ,  Carlos H. Bonilla ,  Sara Rostami ,  Joseph L. Smolenski ,  Maxine M. Gibeau ,  Robert Butler ,  Peter Douglas Lueschen

IPC: B28B1/00 ,  B33Y30/00 ,  B22F12/63 ,  B22F12/00

Abstract: Build receptacles for additive manufacturing apparatuses are disclosed. The build receptacle may comprise a housing comprising a sidewall at least partially enclosing a build chamber. A build platform may be positioned within the build chamber. A position of the build platform may be slidably adjustable within the build chamber in a vertical direction from a lower position to one of a plurality of upper positions and from the one of the plurality of upper positions to the lower position. The build receptacle may further comprise a plurality of heating elements disposed around the build chamber.

公开(公告)号：US12172370B2

公开(公告)日：2024-12-24

申请号：US17611260

申请日：2020-05-22

Applicant: General Electric Company

Inventor： Vadim Bromberg ,  John Sterle ,  Joseph Lucian Smolenski ,  Carlos H. Bonilla ,  Tyler Andrew Griffith ,  Victor Fulton ,  Robert Butler

IPC: B29C64/165 ,  B22F12/00 ,  B22F12/63 ,  B29C64/153 ,  B29C64/218 ,  B29C64/245 ,  B29C64/264 ,  B29C64/321 ,  B29C64/393 ,  B30B3/00 ,  B30B9/20 ,  B30B9/30 ,  B30B13/00 ,  B30B15/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/14 ,  B22F10/28 ,  B22F12/52 ,  B22F12/90

Abstract: A method for forming an object includes moving a recoat assembly (200) in a coating direction over a build material, wherein the recoat assembly (200) comprises a first roller (202) and a second roller (204) that is spaced apart from the first roller; rotating the first roller (202) of the recoat assembly in a counter-rotation direction, such that a bottom of the first roller moves in the coating direction; contacting the build material with the first roller of the recoat assembly, thereby fluidizing at least a portion of the build material; irradiating, with a front energy source (260) coupled to a front end of the recoat assembly, an initial layer of build material positioned in a build area; subsequent to irradiating the initial layer of build material, spreading the build material on the build area with the first roller, thereby depositing a second layer of the build material over the initial layer of build material; and subsequent to spreading the second layer of the build material, irradiating, with a rear energy source (262) positioned rearward of the front energy source, the second layer of build material within the build area.

公开(公告)号：US20220227046A1

公开(公告)日：2022-07-21

申请号：US17611260

申请日：2020-05-22

Applicant: General Electric Company

Inventor： Vadim Bromberg ,  John Sterle ,  Joseph Lucian Smolenski ,  Carlos H. Bonilla ,  Tyler Andrew Griffith ,  Victor Fulton ,  Robert Butler

IPC: B29C64/218 ,  B29C64/153 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method for forming an object includes moving a recoat assembly (200) in a coating direction over a build material, wherein the recoat assembly (200) comprises a first roller (202) and a second roller (204) that is spaced apart from the first roller; rotating the first roller (202) of the recoat assembly in a counter-rotation direction, such that a bottom of the first roller moves in the coating direction; contacting the build material with the first roller of the recoat assembly, thereby fluidizing at least a portion of the build material; irradiating, with a front energy source (260) coupled to a front end of the recoat assembly, an initial layer of build material positioned in a build area; subsequent to irradiating the initial layer of build material, spreading the build material on the build area with the first roller, thereby depositing a second layer of the build material over the initial layer of build material; and subsequent to spreading the second layer of the build material, irradiating, with a rear energy source (262) positioned rearward of the front energy source, the second layer of build material within the build area.