公开(公告)号：US20210331410A1

公开(公告)日：2021-10-28

申请号：US16607802

申请日：2018-06-17

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

Inventor： Arthur H Barnes ,  Alejandro Manuel de Pena ,  Sebastia Cortes I Herms

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/295 ,  B29C64/264

Abstract: In one example, a control process for additive manufacturing includes: forming an extent of unfused build material on a support; applying a coolant to unfused build material within the extent of unfused build material in a pattern of spots; capturing a thermal image of the extent of unfused build material with a thermal imaging device; mapping a pixel location in the thermal image to a physical location for each of multiple spots in the pattern; and based on the mapping, establishing a transform between pixels on the thermal imaging device and physical locations on the support.

公开(公告)号：US11110652B2

公开(公告)日：2021-09-07

申请号：US16844411

申请日：2020-04-09

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

Inventor： Fernando Juan Jover ,  Alejandro Manuel de Pena ,  Esteve Comas Cespedes ,  Edward Dale Davis

IPC: B29C64/165 ,  B29C64/35 ,  B29C64/386 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K105/00

Abstract: According to one example, there is provided apparatus for generating a three-dimensional object. The apparatus comprises a build material distributor movable bi-directionally in a first axis to deposit successive layers of a build material on a support, and an agent distributor movable bi-directionally in a second axis different to the first axis to deliver an agent onto selected portions of successive layers of build material.

公开(公告)号：US10137644B2

公开(公告)日：2018-11-27

申请号：US14888061

申请日：2014-04-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  Alejandro Manuel De Pena ,  Sebastia Cortes ,  Josep Giralt

Inventor： Alejandro Manuel de Pena ,  Sebastia Cortes Herms ,  Josep Giralt Adroher

IPC: G05B19/4099 ,  B29C67/00 ,  B29C64/00 ,  B29C64/386 ,  B29C64/40 ,  B33Y50/02

Abstract: According to one example, there in provided a system for processing three-dimensional object data representing a three-dimensional object to be generated by an additive manufacturing system. The system comprises a processor to perform a transformation on the three-dimensional object data, and to generate a plurality of slice images from the transformed three dimensional object data.

公开(公告)号：US12049045B2

公开(公告)日：2024-07-30

申请号：US18086997

申请日：2022-12-22

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

Inventor： Xavier Vilajosana ,  Sebastia Cortes i Herms ,  David Ramirez Muela ,  Pablo Dominguez Pastor ,  Alejandro Manuel de Pena

IPC: B29C64/393 ,  B29C64/153 ,  B29C64/165 ,  B29C64/188 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/153 ,  B29C64/165 ,  B29C64/188 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y50/00

Abstract: Examples include apparatuses, processes, and methods for generating three-dimensional objects. An example apparatus comprises build material distributor and a controller. Examples distribute a particular build layer in a build area of the apparatus over a previous build layer. Examples determine a build layer temperature corresponding to the particular build layer. Examples analyze build layer coverage for the particular build layer based at least in part on a build layer temperature of the previous build layer and the build layer temperature of the particular build layer. Examples selectively recoat the particular build layer with additional build material based at least in part on the build layer coverage for the particular build layer.

公开(公告)号：US20230126641A1

公开(公告)日：2023-04-27

申请号：US18086997

申请日：2022-12-22

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

Inventor： Xavier Vilajosana ,  Sebastia Cortes i Herms ,  David Ramirez Muela ,  Pablo Dominguez Pastor ,  Alejandro Manuel de Pena

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/188 ,  B33Y10/00 ,  B29C64/153 ,  B29C64/20

Abstract: Examples include apparatuses, processes, and methods for generating three-dimensional objects. An example apparatus comprises build material distributor and a controller. Examples distribute a particular build layer in a build area of the apparatus over a previous build layer. Examples determine a build layer temperature corresponding to the particular build layer. Examples analyze build layer coverage for the particular build layer based at least in part on a build layer temperature of the previous build layer and the build layer temperature of the particular build layer. Examples selectively recoat the particular build layer with additional build material based at least in part on the build layer coverage for the particular build layer.

公开(公告)号：US20190278255A1

公开(公告)日：2019-09-12

申请号：US16420794

申请日：2019-05-23

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

Inventor： Alejandro Manuel de Pena ,  Sebastia Cortes Herms ,  Josep Giralt Adroher

IPC: G05B19/4099 ,  B29C64/386 ,  B29C64/40 ,  B29C64/00

Abstract: In one example, an additive manufacturing system includes a processing system to obtain characteristic data including conditions under which a heat reservoir may be added close to a portion of the object, based on the characteristic data, add sacrificial structure data to the three-dimensional object data for a sacrificial heat reservoir structure close to a portion of the object and not connected to the object, and generate multiple slice images from the three-dimensional object data including the sacrificial structure data.

公开(公告)号：US20190084234A1

公开(公告)日：2019-03-21

申请号：US16093870

申请日：2017-05-10

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

Inventor： Alejandro Manuel de Pena ,  Ferran Esquius Berengueras ,  Esteve Comas ,  Arthur H. Barnes

IPC: B29C64/282 ,  B29C64/165 ,  B29C64/209 ,  B29C64/295

Abstract: A reflector includes a first reflector section and a second reflector section. The first reflector section extends along a portion of a first ellipse. The second reflector section extends along a portion of a second ellipse, the second ellipse intersecting the first ellipse. The first reflector section and the second reflector section are joined at an intersecting point of the first ellipse and the second ellipse.

公开(公告)号：US20200230885A1

公开(公告)日：2020-07-23

申请号：US16844411

申请日：2020-04-09

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

Inventor： Fernando Juan Jover ,  Alejandro Manuel de Pena ,  Esteve Comas Cespedes ,  Edward Dale Davis

IPC: B29C64/386 ,  B29C64/35 ,  B29C64/165

Abstract: According to one example, there is provided apparatus for generating a three-dimensional object. The apparatus comprises a build material distributor movable bi-directionally in a first axis to deposit successive layers of a build material on a support, and an agent distributor movable bi-directionally in a second axis different to the first axis to deliver an agent onto selected portions of successive layers of build material.

公开(公告)号：US20190099954A1

公开(公告)日：2019-04-04

申请号：US16085492

申请日：2016-03-18

Applicant: Xavier Vilajosana ,  Sebastia Cortes ,  Pablo Dominguez ,  Diego Javier Mostaccio ,  Alejandro Manuel de Pena ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Pablo Dominguez ,  Diego Javier Mostaccio ,  Alejandro Manuel de Pena

IPC: B29C64/393 ,  B29C64/165

Abstract: Measures for use in an additive manufacturing system. A thermal camera measures temperatures of a printbed area of the system at a first time and a second, subsequent time during additive manufacture of an object in the printbed area. A controller receives, from the thermal camera, temperature information associated with the measured temperatures at the first time and the second time and processes the received temperature information to determine a first position of a moving part of the system at the first time and a second position of the moving part at the second time. In response to the processing indicating that the moving part has not moved by a sufficient amount between the first time and the second time, the controller determines that the moving part is operating abnormally.

公开(公告)号：US20190049923A1

公开(公告)日：2019-02-14

申请号：US16164142

申请日：2018-10-18

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

Inventor： Alejandro Manuel de Pena ,  Sebastia Cortes Herms ,  Josep Giralt Adroher

IPC: G05B19/4099 ,  B29C64/40 ,  B29C64/386

Abstract: In one example, an additive manufacturing system includes a processing system to obtain characteristic data including conditions under which a heat reservoir may be added close to a portion of the object, based on the characteristic data, add sacrificial structure data to the three-dimensional object data for a sacrificial heat reservoir structure close to a portion of the object and not connected to the object, and generate multiple slice images from the three-dimensional object data including the sacrificial structure data.