公开(公告)号：US20190126550A1

公开(公告)日：2019-05-02

申请号：US16095634

申请日：2016-06-24

Applicant: Francesc SALAS ROURA ,  Gonzalo GASTON LLADO ,  Xavier VILAJOSANA ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Francesc Salas Roura ,  Gonzalo Gaston Llado ,  Xavier Vilajosana

IPC: B29C64/295 ,  B29C64/165 ,  B29C64/393 ,  G01R31/04

Abstract: A method comprises switching on a first radiation source of a plurality of radiation sources. The plurality of radiation sources are for delivering radiation towards a print area of a printing apparatus. Each of the plurality of radiation sources may be connected to control circuitry via one of a plurality of circuit terminals. The method may further comprise detecting, using a detector, a change resulting from radiation from the first radiation source. The method may further comprise determining, using a processor, based on the detected change, connection information indicative of the circuit terminal to which the first radiation source is connected.

公开(公告)号：US20180036950A1

公开(公告)日：2018-02-08

申请号：US15542611

申请日：2015-04-14

Applicant: Xavier VILAJOSANA ,  Pol FORNOS ,  Sergio PUIGARDEU ARAMENDIA ,  David RAMIREZ MUELA ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Pol Fornos ,  Sergio Puigardeu Aramendia ,  David Ramirez Muela

IPC: B29C64/393 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/357

CPC classification number: B29C64/393 ,  B22F3/008 ,  B22F3/1055 ,  B22F2003/1059 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/35 ,  B29C64/357 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/24 ,  Y02P10/295 ,  B22F2003/247 ,  B22F2202/01 ,  B22F2203/03

Abstract: A method for determining a parameter of a process associated with a 3D printing process provided. A first amount corresponding to an object of fused powder surrounded by non-fused powder is used. The first amount is separated into a second amount of non-fused powder and a third amount corresponding to the object including residual powder material attached. The residual powder material is removed from the object using a fourth amount of a cleaning agent. A fifth amount corresponding to the fused powder of the cleaned object and a sixth amount of material corresponding to a mixture of the removed residual powder material and the cleaning agent is obtained. The mixture includes a seventh amount of material being recovered, an eighth amount of material corresponding to powder material wastage, and the fourth amount. The parameter is derived from at least two of first to eighth amounts of material.

公开(公告)号：US20180186079A1

公开(公告)日：2018-07-05

申请号：US15568405

申请日：2015-09-28

Applicant: Xavier VILAJOSANA ,  Sebastia CORTES ,  Yngvar ROSSOW ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Yngvar Rossow

IPC: B29C64/393 ,  B29C64/165

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of controlling a heating sub-system in an additive manufacturing system. The method comprising receiving thermal imaging information from a temperature sensing subsystem, receiving additive manufacturing media concentration information from an additive manufacturing media concentration information database, on the basis of the received thermal imaging information and additive manufacturing media concentration information, for each pixel area in the plurality of pixel areas, determining the temperature for each additive manufacturing media agent in the plurality of additive manufacturing media agents which is present in the respective pixel area, and on the basis of the determined temperatures for each pixel area and additive manufacturing media agent, controlling the power to a heating subsystem employed in the given additive manufacturing process.

公开(公告)号：US20180133971A1

公开(公告)日：2018-05-17

申请号：US15564377

申请日：2015-07-22

Applicant: Pere Tuset ,  Diego Javier Mostaccio ,  Hewlett-Packard Development Company, L.P. ,  Xavier Vilajosana

Inventor： Xavier VILAJOSANA ,  Pere TUSET ,  Diego Javier MOSTACCIO

IPC: B29C64/393 ,  B29C35/02 ,  G05D23/27

CPC classification number: B29C64/393 ,  B29C35/0288 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G05D23/27

Abstract: A method for thermal control in an additive manufacturing system is disclosed: the method including receiving position information from an encoder device, receiving a data stream from a thermal sensing device, filtering the data stream based on the position information and building a temperature image map from the filtered data stream. A thermal control system and an additive manufacturing system having a thermal control system are also disclosed.

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：US20190009463A1

公开(公告)日：2019-01-10

申请号：US16065464

申请日：2016-03-30

Applicant: Xavier VILAJOSANA ,  Sergio PUIGARDEU ,  Alejandro Manuel PENA ,  David RAMIREZ ,  Pol FORNOS ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Sergio Puigardeu ,  Alejandro Manuel De Pena ,  David Ramirez ,  Pol Fornos

IPC: B29C64/153 ,  B29C64/165 ,  B29C64/386

Abstract: There is provided a method and apparatus for controlling heat to a build surface. A thermal profile over the build surface is determined. The determined thermal profile over the build surface is compared with an expected thermal profile over the build surface. Based on the comparison, the determined thermal profile over the build surface or the expected thermal profile over the build surface is selected to control an amount of heat provided by a heating module to the build surface.

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.