公开(公告)号：US20210276266A1

公开(公告)日：2021-09-09

申请号：US16608448

申请日：2018-01-29

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

Inventor： Arthur H. Barnes ,  Haseeb Yusef ,  John Geile

IPC: B29C64/393 ,  B29C64/295 ,  B29C64/321 ,  B29C64/153 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00

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：US10751940B2

公开(公告)日：2020-08-25

申请号：US16075444

申请日：2016-10-27

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

Inventor： Haseeb Yusef ,  William Winters ,  Jordi Gimenez Manent ,  Xavier Gasso Puchal ,  Eduardo Ruiz Martinez ,  Drew Berwager ,  Brent Ewald ,  Micah Aberth

IPC: B29C64/218 ,  B33Y30/00 ,  B29C64/153 ,  B33Y10/00 ,  B22F3/00 ,  B22F3/105 ,  B29C64/165

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.