公开(公告)号：US20180264735A1

公开(公告)日：2018-09-20

申请号：US15542285

申请日：2015-04-17

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

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Alejandro Manuel De Pena

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/188 ,  B29C64/165 ,  B28B1/00 ,  B28B17/00 ,  B22F3/105 ,  C03B19/01

CPC classification number: B29C64/393 ,  B22F3/1055 ,  B28B1/001 ,  B28B17/0081 ,  B29C64/153 ,  B29C64/165 ,  B29C64/188 ,  B29C64/205 ,  B29C64/35 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  C03B19/01

Abstract: A sensor may be to detect a height profile of build material for generating the three-dimensional object. A defect of the build material may be determined to exist based on the height profile of the build material. The defect may be corrected or the defect may be prevented from impacting a component of the system. A portion of a layer of the build material delivered by a build material distributor may be selectively solidified.

公开(公告)号：US20170344314A1

公开(公告)日：2017-11-30

申请号：US15533514

申请日：2015-01-13

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

Inventor： Xavier Vilajosana ,  Pere Tuset ,  Pol Fornos

IPC: G06F3/12 ,  B41J29/38 ,  B41J29/46 ,  G06F17/15

CPC classification number: G06F3/121 ,  B41J19/00 ,  B41J29/38 ,  B41J29/393 ,  B41J29/46 ,  G06F17/15

Abstract: In an example, a method of anticipating maintenance in a printing device includes determining an inertial reference signal of a printer carriage and measuring a current inertial signal of the printer carriage. The method includes cross-correlating the inertial reference signal with the current inertial signal and determining from the cross-correlating when the current inertial signal is not within a preset confidence interval of the inertial reference signal.

公开(公告)号：US20170341307A1

公开(公告)日：2017-11-30

申请号：US15535833

申请日：2015-01-30

Applicant: Xavier Vilajosana ,  Alejandro Manuel De Pena ,  Sebastia Cortes i Herms ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Alejandro Manuel De Pena ,  Sebastia Cortes i Herms

IPC: B29C64/393 ,  B29C35/02 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/291 ,  B29C64/165 ,  B29K101/12

CPC classification number: B29C64/393 ,  B29C35/0288 ,  B29C64/165 ,  B29C64/291 ,  B29C64/386 ,  B29K2101/12 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02

Abstract: A method of heating a surface while fabricating a 3-D object is disclosed wherein a first temperature feedback signal from a first location on the surface is used to control the energy radiated by an energy source during a first stage of the fabrication process. A second temperature feedback signal from a second location on the surface is used to control the energy radiated by an energy source during a second stage of the fabrication process.

公开(公告)号：US20170305067A1

公开(公告)日：2017-10-26

申请号：US15515628

申请日：2014-09-30

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

Inventor： Sebastia Cortes ,  Jun Zeng ,  Xavier Vilajosana

IPC: B29C64/393 ,  B33Y10/00 ,  G05B19/042 ,  G06F21/62 ,  G06F21/52 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/153 ,  B33Y10/00 ,  B33Y50/02 ,  G05B19/0426 ,  G05B2219/49023 ,  G06F21/52 ,  G06F21/6209 ,  G06F2221/033 ,  G06F2221/2141

Abstract: A method and apparatus partition a AM build bed of a AM unit into a first virtual build bed and a second virtual build bed. The first virtual build bed is assigned to a first user while the second virtual build bed assigned to a second user. A first digital file for a first object to be generated in the first virtual build bed is received from the first user. A second digital file for a second object to be generated in the second virtual build bed is receive from the second user. Output signals are transmitted to the AM unit to generate the first object in the first virtual build bed and the second object in the second virtual build bed during a build cycle.

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：US11179894B2

公开(公告)日：2021-11-23

申请号：US16094174

申请日：2016-05-12

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

Inventor： Pol Fornos ,  Sergio Puigardeu Aramendia ,  Xavier Vilajosana

IPC: B29C64/393 ,  B29C64/165 ,  B33Y50/02 ,  B29C64/386 ,  B29C64/124 ,  B29C64/20 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/135 ,  B29C64/153

Abstract: In an example, a method includes forming a first layer of build material to be processed in object generation and selectively applying at least one print agent on to the first layer based on a print instruction for the first layer. Energy may be applied to the first layer to cause fusion in at least a region thereof, and at least one temperature associated with a thermal contribution of the first layer to a subsequent layer of build material to be processed in object generation may be measured. It may be determined if a temperature condition indicative of a departure from an anticipated thermal contribution of the first layer to a region of subsequent layer exists. If such a temperature condition does exist, a print instruction for applying print agent to the region of the subsequent layer based on the temperature condition may be determined.

公开(公告)号：US10723115B2

公开(公告)日：2020-07-28

申请号：US15509738

申请日：2014-09-30

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

Inventor： Sebastia Cortes I Herms ,  Xavier Vilajosana ,  Scott A. White

IPC: B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C35/16 ,  B33Y10/00

Abstract: In one example, a method of controlling generation apparatus for generating a three-dimensional object is described. For example, data indicative of at least one physical property affecting heat transfer from an object may be determined and used to determine a cooling time, and a component of the generation apparatus may be controlled in response to the determined cooling time.

公开(公告)号：US10538033B2

公开(公告)日：2020-01-21

申请号：US15515628

申请日：2014-09-30

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

Inventor： Sebastia Cortes ,  Jun Zeng ,  Xavier Vilajosana

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  G05B19/042 ,  G06F21/52 ,  G06F21/62

Abstract: A method and apparatus partition a AM build bed of a AM unit into a first virtual build bed and a second virtual build bed. The first virtual build bed is assigned to a first user while the second virtual build bed assigned to a second user. A first digital file for a first object to be generated in the first virtual build bed is received from the first user. A second digital file for a second object to be generated in the second virtual build bed is receive from the second user. Output signals are transmitted to the AM unit to generate the first object in the first virtual build bed and the second object in the second virtual build bed during a build cycle.

公开(公告)号：US20190091932A1

公开(公告)日：2019-03-28

申请号：US16085478

申请日：2016-03-18

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

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Pablo Dominguez

IPC: B29C64/343 ,  B29C64/165 ,  B29C64/321 ,  B29C64/245 ,  B29C64/209

Abstract: Measures for use in an additive manufacturing system. The temperature of at least one build material delivery hole in a printbed area of the system is measured. An emissivity of the at least one build material delivery hole is compared with a known emissivity of a build material being used in additive manufacturing by the system at the measured temperature. In response to the comparison indicating a difference in emissivity, it is determined that at least a portion of the at least one build material delivery hole is not covered by build material.