公开(公告)号：US20200269513A1

公开(公告)日：2020-08-27

申请号：US16608856

申请日：2017-11-13

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

Inventor： Luis Garcia ,  Natalia Garcia ,  Alex Andrea

IPC: B29C64/393 ,  B29C64/336 ,  B29C64/255

Abstract: Examples of the present disclosure relate to a three-dimensional printing preparation controller. The controller comprises a processor, a data storage coupled to the processor and an instruction set to cooperate with the processor and the data storage. The instruction set detects a request to mix a first and a second material in a specific proportion, the first and the second material having respectively first and second characteristics; the first characteristics differing from the second characteristics, validates the request by comparing the specific proportion and the first and second characteristics with validated proportions and validated characteristics and mixes the first and second materials in the specific proportion if the request is validated to correspond to validated proportions and validated characteristics.

公开(公告)号：US20190091936A1

公开(公告)日：2019-03-28

申请号：US16085487

申请日：2016-03-24

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

Inventor： Pol Fornos ,  Manuel Freire ,  Luis Garcia

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

Abstract: Examples of additive manufacturing are described. In one example, a method comprises generating print data to cause application of fusing agent to a first region of a layer of build material of an object undergoing additive manufacturing, the first region corresponding to an inner region of an object undergoing additive manufacturing. The print data causes application of fusing agent and detailing agent to a second region of the layer, the second layer corresponding to a middle region of the object. The print data causes application of detailing agent to a third region of the layer, the third region corresponding to an outer layer of the object. Fusing energy is applied to the layer.

公开(公告)号：US20180259939A1

公开(公告)日：2018-09-13

申请号：US15761049

申请日：2015-12-22

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

Inventor： Luis Garcia ,  Miguel Angel Lopez ,  David Ramirez Muela

IPC: G05B19/4099 ,  B33Y80/00 ,  B29C64/357 ,  B33Y50/02 ,  B29C64/393

CPC classification number: G05B19/4099 ,  B29C64/357 ,  B29C64/393 ,  B29L2031/712 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  G05B2219/49023

Abstract: There is provided a method of generating print data for use by an additive manufacturing system to generate a plurality of 3D objects within a build chamber having a build surface. First spatial data defining a first 3D object and second spatial data defining a second 3D object is received. First print data is generated to cause the additive manufacturing system to manufacture the first 3D object at least partly from a first build material. Intermediate print data is generated to cause the additive manufacturing system to manufacture a partition comprising a 3D object configured to fill the build chamber in a plane parallel to the build surface. Second print data is generated to cause the additive manufacturing system to manufacture the second 3D object at least partly from a second build material.

公开(公告)号：US09906686B2

公开(公告)日：2018-02-27

申请号：US15028891

申请日：2013-10-15

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

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

IPC: H04N1/405 ,  G06K15/02

CPC classification number: H04N1/4052 ,  G06K15/1876 ,  G06K15/1881

Abstract: Image processing transforms input multi-level image data into output image data having a smaller number of levels (the input and output image data represents images formed of cells). The image processing distributes quantization error of a target cell of the image to neighbor cells in proportions determined by a set of weights. The distribution excludes neighbor cells whose data level is less than a threshold value from receiving distributed quantization error, or allows just a fraction of the quantization error to be distributed to such neighbor cells.

公开(公告)号：US11639032B2

公开(公告)日：2023-05-02

申请号：US17239177

申请日：2021-04-23

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

Inventor： Pol Fornos ,  Manuel Freire ,  Luis Garcia

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

Abstract: Examples of additive manufacturing are described. In one example, a method comprises generating print data to cause application of fusing agent to a first region of a layer of build material of an object undergoing additive manufacturing, the first region corresponding to an inner region of an object undergoing additive manufacturing. The print data causes application of fusing agent and detailing agent to a second region of the layer, the second layer corresponding to a middle region of the object. The print data causes application of detailing agent to a third region of the layer, the third region corresponding to an outer layer of the object. Fusing energy is applied to the layer.

公开(公告)号：US20190143586A1

公开(公告)日：2019-05-16

申请号：US16095189

申请日：2016-05-12

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

Inventor： Xavier Vilajosana ,  Alejandro Manuel De Pena ,  Sergio Puigardeu Aramendia ,  David Ramirez Muela ,  Luis Garcia

IPC: B29C64/165 ,  B29C64/386

Abstract: In an example, a method includes measuring the temperature of a fused region and the temperature of an unfused region of a first layer of build material; determining a preheating setting for a subsequent layer of build material in response to the measured temperature of the unfused region of the first layer; determining a print instruction for applying print agent to the subsequent layer of build material, wherein the application of print agent prescribed by the print instruction for the subsequent layer to cause the temperature of the preheated build material to be a predetermined temperature prior to fusion in response to the measured temperature of the fused region of the first layer; forming the subsequent layer of build material; preheating the subsequent layer of build material in accordance with the preheating setting; and selectively applying the print agent onto the subsequent layer based on the print instruction.

公开(公告)号：US20190095555A1

公开(公告)日：2019-03-28

申请号：US16080969

申请日：2016-03-18

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

Inventor： Miguel Angel Lopez ,  Salvador Sanchez Ribes ,  Luis Garcia

IPC: G06F17/50 ,  B29C64/393

Abstract: In an example, a method includes analysing, using at least one processor, object model data representing at least a portion of an object to be generated by an additive manufacturing apparatus by fusing a build material to determine at least one predicted object generation temperature. The method may further include identifying, using at least one processor and from said analysing, a feature of the at least a portion of the object associated with a predicted object generation temperature which is below a fusing temperature of build material to be used in object generation. The method may further include determining, using at least one processor, modification data to be used in object generation, the modification data being to increase a temperature of the feature in object generation.

公开(公告)号：US11518104B2

公开(公告)日：2022-12-06

申请号：US16075677

申请日：2017-03-29

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

Inventor： Pol Fornos ,  Luis Garcia ,  Jun Zeng

IPC: B29C64/386 ,  B33Y50/00 ,  G06F30/10 ,  G05B19/042 ,  G01N25/00 ,  G06F119/08

Abstract: In an example, a method includes receiving, at a processor, object model data representing at least a portion of an object to be generated by an additive manufacturing apparatus by fusing build material. Using a processor and from the object model data, a property diffusion model for the object in object generation may be determined. Using a processor and based on the property diffusion model, a manufacturing boundary object shell around the object and encompassing an external volume may be determined. The shell may have a variable thickness determined so as to include build material for which, in generation of the object, the property modelled in the property diffusion model has a value which is predicted to conform to a predetermined parameter.

公开(公告)号：US20210237363A1

公开(公告)日：2021-08-05

申请号：US17239177

申请日：2021-04-23

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

Inventor： Pol Fornos ,  Manuel Freire ,  Luis Garcia

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

Abstract: Examples of additive manufacturing are described. In one example, a method comprises generating print data to cause application of fusing agent to a first region of a layer of build material of an object undergoing additive manufacturing, the first region corresponding to an inner region of an object undergoing additive manufacturing. The print data causes application of fusing agent and detailing agent to a second region of the layer, the second layer corresponding to a middle region of the object. The print data causes application of detailing agent to a third region of the layer, the third region corresponding to an outer layer of the object. Fusing energy is applied to the layer.

公开(公告)号：US11020905B2

公开(公告)日：2021-06-01

申请号：US16085487

申请日：2016-03-24

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

Inventor： Pol Fornos ,  Manuel Freire ,  Luis Garcia

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

Abstract: Examples of additive manufacturing are described. In one example, a method comprises generating print data to cause application of fusing agent to a first region of a layer of build material of an object undergoing additive manufacturing, the first region corresponding to an inner region of an object undergoing additive manufacturing. The print data causes application of fusing agent and detailing agent to a second region of the layer, the second layer corresponding to a middle region of the object. The print data causes application of detailing agent to a third region of the layer, the third region corresponding to an outer layer of the object. Fusing energy is applied to the layer.