公开(公告)号：US20230118985A1

公开(公告)日：2023-04-20

申请号：US17505197

申请日：2021-10-19

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

Inventor： Jorge Diosdado Borrego ,  Marc Garcia Grau ,  Sergio Puigardeu Aramendia

IPC: B22F10/80 ,  B33Y50/00 ,  B33Y80/00 ,  B08B5/02 ,  B22F10/68 ,  B33Y40/20

Abstract: A computer-implemented method is disclosed. The method comprises receiving object data relating to a three-dimensional object generated or to be generated using an additive manufacturing apparatus, the object data including details of an aperture in a surface of the three-dimensional object; determining, based on the object data, design data for a jig to engage the object and to form a fluid communication channel between the aperture in the surface of the three-dimensional object and an interface of an airflow control mechanism, the airflow control mechanism to cause a flow of air through the aperture; and providing the design data for delivery to an additive manufacturing apparatus to generate the jig. A jig is also disclosed.

公开(公告)号：US11260598B2

公开(公告)日：2022-03-01

申请号：US15948438

申请日：2018-04-09

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

Inventor： Ismael Fernandez Aymerich ,  Lluis Abello Rosello ,  Sergio Puigardeu Aramendia

IPC: B29C64/393 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/165 ,  B28B1/00 ,  B28B17/00 ,  B29C64/153 ,  B29C64/188 ,  B29C64/295 ,  G05D23/19 ,  B33Y10/00 ,  B22F10/20 ,  B22F10/30

Abstract: In an example, a method includes measuring a temperature of a plurality of regions of a layer of build material in an additive manufacturing apparatus to provide initial temperature values. For each of a plurality of regions which comprise build material which is intended to fuse, an average temperature value of a plurality of neighbouring regions may be determined and the initial temperature values may be replaced with the average temperature value. Based on the replacement temperature values, a representative temperature of an area of the layer of build material may be determined and a heat source may be controlled based on the representative temperature.

公开(公告)号：US20210405612A1

公开(公告)日：2021-12-30

申请号：US16605227

申请日：2018-07-25

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

Inventor： Pol Fornos Martinez ,  Sergio Puigardeu Aramendia ,  Ismael Fernandez Aymerich

IPC: G05B19/4099 ,  B33Y50/00 ,  B33Y80/00 ,  B29C64/386 ,  B22F10/80

Abstract: In an example, a method includes receiving, by at least one processor, object model data, the object model data describing at least part of an object to be generated in additive manufacturing. Pattern data is also received, wherein the pattern data describes a pattern of variable opacity intended to be formed internally to the object. Object generation instructions for generating an intermediate layer of the object comprising the pattern of variable opacity may be determined by at least one processor.

公开(公告)号：US11203155B2

公开(公告)日：2021-12-21

申请号：US16568137

申请日：2019-09-11

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

Inventor： David Ramirez Muela ,  Sergio Puigardeu Aramendia ,  Pol Fornos ,  Salvador Sanchez Ribes

IPC: B29C64/314 ,  B29C64/40 ,  B29C64/165 ,  B29C64/321 ,  B29C64/357 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  G05B15/02 ,  G05B19/19 ,  B29K101/12 ,  B29K105/00

Abstract: Examples are described that generate control data for production of a three-dimensional object. Build material profile data is accessed for an indicated build material. The build material profile data for a given build material defines one or more parameter values that are dependent on the properties of the given build material and that are configured to generate a three-dimensional object with predefined build properties.

公开(公告)号：US20210283849A1

公开(公告)日：2021-09-16

申请号：US16605359

申请日：2018-03-28

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

Inventor： Ismael Fernandez Aymerich ,  Sergio Puigardeu Aramendia ,  Pol Fornos Martinez

IPC: B29C64/393 ,  B33Y50/02 ,  B33Y10/00

Abstract: A method is disclosed. The method may comprise obtaining, using a processor, design data representing an object to be generated in a fabrication chamber of an additive manufacturing apparatus. The method may further comprise determining, based on the design data, that a part of the object is to be generated within a predefined portion of the fabrication chamber. The method may further comprise responsive to said determining, generating, using a processor, data representing an ancillary element to be generated in the predefined portion between the part of the object and a wall of the fabrication chamber. An apparatus and a machine-readable medium are also disclosed.

公开(公告)号：US10730282B2

公开(公告)日：2020-08-04

申请号：US16094187

申请日：2016-05-12

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

Inventor： Alejandro Manuel De Pena ,  Sergio Puigardeu Aramendia ,  David Ramirez Muela

IPC: B33Y10/00 ,  B29C64/165 ,  B33Y50/02 ,  B29C64/386 ,  B29C64/393 ,  B29C41/46 ,  B29C41/52 ,  B33Y30/00

Abstract: In an example, a method includes forming, at an additive manufacturing apparatus, a first layer of build material to be processed in the generation of an object. A print agent is selectively applied onto the first layer based on a first print instruction associated with the first layer. Energy is applied to the first layer to cause fusion in a region of the first layer. The method further comprises: measuring the temperature of the first layer at a plurality of locations to form a measured temperature distribution profile; comparing the measured temperature distribution profile against a predicted temperature distribution profile to generate a difference; and correcting a temperature distribution profile of a subsequent layer of the build material following fusion of the subsequent layer based on the difference by modifying a second print instruction associated with the subsequent layer.

公开(公告)号：US20200004215A1

公开(公告)日：2020-01-02

申请号：US16568137

申请日：2019-09-11

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

Inventor： David Ramirez Muela ,  Sergio Puigardeu Aramendia ,  Pol Fornos ,  Salvador Sanchez Ribes

IPC: G05B15/02 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  G05B19/19

Abstract: Examples are described that generate control data for production of a three-dimensional object. Build material profile data is accessed for an indicated build material. The build material profile data for a given build material defines one or more parameter values that are dependent on the properties of the given build material and that are configured to generate a three-dimensional object with predefined build properties.

公开(公告)号：US20190291349A1

公开(公告)日：2019-09-26

申请号：US16304493

申请日：2016-07-04

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

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

IPC: B29C64/393 ,  B29C64/165 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Certain examples described herein relate to preparing a base of build material for additive manufacturing. The base is formed from layers of build material that do not form part of an object undergoing additive manufacture. The base is heated by the application of energy, for example using a radiation source. A thermal profile of the base is measured after heating and is used to determine a pattern of application of at least one printing agent to the base. The pattern of application is used to deposit the at least one printing agent upon the base, wherein the presence of the printing agent affects the heating of the base. In this way the pattern of application of printing agent may be used to effect a thermal homogeneity of the base.

公开(公告)号：US10341506B2

公开(公告)日：2019-07-02

申请号：US15949696

申请日：2018-04-10

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

Inventor： Luis Garcia Garcia ,  Sergio Puigardeu Aramendia ,  M. Isabel Borrell Bayona ,  Angel Martinez Barambio

IPC: H04N1/46 ,  H04N1/00 ,  H04N1/60 ,  G06K15/10

Abstract: According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a colour sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the colour sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data.

公开(公告)号：US20190134903A1

公开(公告)日：2019-05-09

申请号：US16094246

申请日：2016-05-12

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

Inventor： Alejandro Manuel De Pena ,  Sergio Puigardeu Aramendia ,  Jordi Sanroma Garrit

IPC: B29C64/295 ,  B29C35/02 ,  B29C35/08 ,  B29C64/165 ,  B29C64/393

Abstract: In one example, a system for heating lamp calibration can include a plurality of heating lamps over a print bed to heat the print bed over a period of time, a thermal imaging sensor to capture images of the print bed over the period of time, and a computing device coupled to the thermal imaging sensor to determine a surface flux delivered to each of a plurality of zones of the print bed over the period of time and calibrate a heating lamp of the plurality of heating lamps based on a corresponding contribution to the surface flux.