公开(公告)号：WO2019147287A3

公开(公告)日：2019-08-01

申请号：PCT/US2018/015760

申请日：2018-01-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： BARNES, Arthur, H. ,  YUSEF, Haseeb ,  GEILE, John

IPC: B29C64/153 ,  B29C64/295 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Some examples include an additive manufacturing machine including a dose plate to receive build material onto, a heating element to selectively heat the build material dispensed on the dose plate, the build material selectively heated in at least two zones, a sensor to detect a temperature of each of the at least two zones, and a controller to control the heating element based on the temperatures of each of the at least two zones.

公开(公告)号：WO2019147287A2

公开(公告)日：2019-08-01

申请号：PCT/US2018/015760

申请日：2018-01-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： BARNES, Arthur, H. ,  YUSEF, Haseeb ,  GEILE, John

Abstract: Some examples include an additive manufacturing machine including a dose plate to receive build material onto, a heating element to selectively heat the build material dispensed on the dose plate, the build material selectively heated in at least two zones, a sensor to detect a temperature of each of the at least two zones, and a controller to control the heating element based on the temperatures of each of the at least two zones.

公开(公告)号：WO2018080507A1

公开(公告)日：2018-05-03

申请号：PCT/US2016/059178

申请日：2016-10-27

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： YUSEF, Haseeb ,  WINTERS, William ,  GIMENEZ MANENT, Jordi ,  GASSO PUCHAL, Xavier ,  RUIZ MARTINEZ, Eduardo ,  BERWAGER, Drew ,  EWALD, Brent ,  ABERTH, Micah

IPC: B29C64/218 ,  B33Y30/00

Abstract: According to an example, a recoater for a three-dimensional (3D) printer may include a cylindrical element having a surface to spread build material particles. The build material particles may have a specified average dimension and the surface may include a plurality of depressions that have dimensions that are smaller than the specified average dimension of the build material particles.

Abstract translation: 根据一个例子，用于三维（3D）打印机的重涂器可以包括具有用于散布建造材料颗粒的表面的圆柱形元件。 构建材料颗粒可以具有指定的平均尺寸，并且表面可以包括多个具有小于构建材料颗粒的指定平均尺寸的尺寸的凹陷。

公开(公告)号：WO2019005042A1

公开(公告)日：2019-01-03

申请号：PCT/US2017/039758

申请日：2017-06-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： RODE, Mike ,  GEILE, John ,  YUSEF, Haseeb ,  DUDIK, Tristan ,  KAISER, Pierre, J. ,  SCOFIELD, Sam ,  EWALD, Brent

IPC: B29C64/329 ,  B33Y40/00

CPC classification number: B33Y40/00 ,  B29C64/153 ,  B29C64/205 ,  B29C64/255 ,  B29C64/329 ,  B33Y30/00

Abstract: In one example, a refill control system to control the flow of powdered build material to a dispenser to periodically refill the dispenser with powdered build material. In one example, the refill control system includes a container to hold powered build material and a valve operable between a closed position to block a flow of powdered build material from the container to the dispenser and an open position to not block the flow of powdered build material from the container to the dispenser. The container is movable from a first position to a second position to connect the container to the dispenser and from the second position to the first position to disconnect the container from the dispenser.

公开(公告)号：WO2018182599A1

公开(公告)日：2018-10-04

申请号：PCT/US2017/024815

申请日：2017-03-29

Applicant: HEWLETT PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： YUSEF, Haseeb ,  JUAN, Fernando ,  WHITEFIELD, Corwin David ,  DRIGGERS, Matt Gordon ,  MOSQUERA DOÑATE, Gerard

IPC: B29C64/314 ,  B33Y40/00

CPC classification number: B29C64/314 ,  B33Y40/00

Abstract: In one example, a build material preparation subsystem. The subsystem includes a trough to house build material deliverable to a build bed and usable to form a layer of an object fabricated by additive manufacturing. An agitating tray is slidably disposed in the trough. A linear actuator is disposed adjacent an outside wall of the trough. A drive arm has a first end portion fixedly coupled to the agitating tray and a second end portion coupled to the linear actuator. The drive arm passes over a wall of the trough.