公开(公告)号：US20240326132A1

公开(公告)日：2024-10-03

申请号：US18575852

申请日：2021-07-15

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Marc GARCIA GRAU ,  Salvador SANCHEZ RIBES ,  Sergi CULUBRET I CORTADA ,  Sergio PUIGARDEU ARAMENDIA

IPC: B22F10/85 ,  B22F12/90 ,  B33Y50/02 ,  B41J2/165 ,  B41J2/21

CPC classification number: B22F10/85 ,  B22F12/90 ,  B41J2/16579 ,  B41J2/2139 ,  B41J2/2142 ,  B33Y50/02

Abstract: Example implementations relate to determining and correcting for nozzle failure in printheads used for printing objects. One example implementation receives object data for printing an object and predicts a nozzle failure of a nozzle in the printhead which corresponds with a print location of the object. A print quality parameter of the object to be printed without using the nozzle is determined.

公开(公告)号：US20210178674A1

公开(公告)日：2021-06-17

申请号：US16717407

申请日：2019-12-17

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sergio PUIGARDEU ARAMENDIA ,  Alejandro Manuel DE PENA ,  Sebastia CORTES HERMS

IPC: B29C64/205 ,  B29C64/153 ,  B29C64/245 ,  B29C64/343 ,  B29C64/393

Abstract: Apparatus, computer readable medium, or method to determine a layer volume change in a processed layer of powder, and distribute an additional amount of powder in a subsequent layer based on the determined layer volume change.

公开(公告)号：US20210101344A1

公开(公告)日：2021-04-08

申请号：US16772243

申请日：2018-03-27

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

Inventor： Pol FORNOS MARTINEZ ,  Ismael FERNANDEZ AYMERICH ,  Sergio PUIGARDEU ARAMENDIA

IPC: B29C64/393 ,  B29C64/153

Abstract: Certain examples relate to altering at least one control parameter of a printing process in an additive manufacturing system. In these examples following a change in operative state of at least one energy source at least one control parameter of a printing process is altered. An energy source is a device configured to apply energy to build material to facilitate the solidification of said build material. Control parameters determine the way a printing process is carried out. In some of these examples control parameters may be the irradiance of an energy source or the way in which the energy source moves over the build material to apply energy to the build material.

公开(公告)号：US20190168458A1

公开(公告)日：2019-06-06

申请号：US16092731

申请日：2016-05-12

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sergio PUIGARDEU ARAMENDIA ,  David RAMIREZ MUELA ,  Luis GARCIA GARCIA

IPC: B29C64/393

Abstract: According to an example, a three-dimensional (3D) printer may include a delivery device to selectively deliver liquid droplets onto a layer of build materials and a controller to determine a preselected area on the layer of build materials at which the delivery device is to deliver liquid droplets, to determine a distribution at which gaps are to be formed in the delivery of the liquid droplets within the preselected area, and to control the delivery device to deliver the liquid droplets across the preselected area while forming the gaps at the determined distribution, in which the gaps are to form heat sinks in the build materials that are to prevent heat spikes from occurring across the build materials in the preselected area.