公开(公告)号：US20230205173A1

公开(公告)日：2023-06-29

申请号：US17997184

申请日：2020-05-21

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

Inventor： Salvador Sanchez Ribes ,  Jason C. Hower ,  Jeremy Harlan Donaldson ,  Sergio Puigardeu Aramendia ,  Marc Garcia Grau

IPC: G05B19/4099 ,  B29C64/393 ,  B33Y50/02

CPC classification number: G05B19/4099 ,  B29C64/393 ,  B33Y50/02 ,  B29C64/165

Abstract: A method comprising dividing a build model comprising an object model arranged within a virtual volume into cross-sectional layers along a vertical axis. The layers represent layers of an additive manufacturing process. A set of base layers is identified with each of the base layers comprising a flat bottom surface of the object model. A base characteristic is assigned to the set of base layers. A set of bulk layers is identified which excludes the set of base layers. A bulk characteristic is assigned to the set of bulk layers. An additive manufacturing apparatus is instructed to build a build cake according to the build model, layers and assigned characteristics, so a fluid agent is deposited at a first rate for the set of bulk layers having the bulk characteristic and a second rate, slower than the first rate, for the set of base layers having the base characteristic.

公开(公告)号：US20210331403A1

公开(公告)日：2021-10-28

申请号：US16605585

申请日：2018-04-27

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

Inventor： David Ramirez Muela ,  Manuel Freire Garcia ,  Lluis Abello Rosello ,  Sergio Puigardeu Aramendia

IPC: B29C64/393 ,  B29C64/118 ,  G06T7/10 ,  G06F30/10 ,  B33Y10/00 ,  B33Y50/02

Abstract: An example method includes acquiring a model of an object to be generated in three-dimensional object generation which is segmented into a plurality of object model sub-volumes, each sub-volume representing a region of the object which is individually addressable in object generation. Object model sub-volumes within a first depth of an object model surface are defined at a first resolution and object model sub-volumes beyond the first depth are defined at a second resolution, and the first resolution is a higher resolution than the second resolution. An object generation model is applied to the object model to determine at least one predicted dimensional deviation of the object in object generation. A geometric adjustment to the segmented object model may be determined to compensate for the predicted dimensional deviation by adding and/or removing at least one object model sub-volume defined at the first resolution.

公开(公告)号：US11084219B2

公开(公告)日：2021-08-10

申请号：US15515326

申请日：2014-10-03

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

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

IPC: B29C64/386 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/112 ,  B29C64/165 ,  B29C64/245 ,  B33Y10/00 ,  B33Y50/02 ,  B29K105/00

Abstract: Apparatus (100) for generating a three-dimensional object comprising a support (101) to receive build material, and a calibration platform (103) to receive a print media for use with a calibration operation performed by the apparatus. The calibration platform (103) may be moveable between a non-calibration position when the apparatus is operating in a building mode of operation, and a calibration position when the apparatus is operating in a calibration mode of operation.

公开(公告)号：US20210229183A1

公开(公告)日：2021-07-29

申请号：US15734591

申请日：2019-02-27

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

Inventor： Fernando Viciano Martin ,  Jason Cassidy Hower ,  Sergio Puigardeu Aramendia

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/14

Abstract: In one example, a memory having instructions thereon that when executed cause a 3D printing system to determine a cure time for a functional agent applied to print a part as a function of build platform position and then cure the functional agent for the determined cure time.

公开(公告)号：US10549518B2

公开(公告)日：2020-02-04

申请号：US15121894

申请日：2014-03-31

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

Inventor： Sergio Puigardeu Aramendia ,  Alejandro Manuel De Pena ,  Sebastia Cortes Herms

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29K105/00

Abstract: Apparatus, computer readable medium, or method to determine a layer volume change in a processed layer of powder, and distribute an additional amount of powder in a subsequent layer based on the determined layer volume change.

公开(公告)号：US20190202132A1

公开(公告)日：2019-07-04

申请号：US16092886

申请日：2016-05-12

Applicant: Alejandro Manuel DE PENA ,  Scott WHITE ,  Sergio PUIGARDEU ARAMENDIA ,  Carmen BLASCO ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Alejandro Manuel De Pena ,  Scott White ,  Sergio Puigardeu Aramendia ,  Carmen Blasco

IPC: B29C64/393 ,  B29C64/153 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  G05B19/4099

CPC classification number: B29C64/393 ,  B22F3/1055 ,  B22F3/24 ,  B22F2003/1056 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/35 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G05B19/4099 ,  G05B2219/35134 ,  G05B2219/49007 ,  G05B2219/49023 ,  Y02P10/295

Abstract: A controller-implemented method of controlling a three dimensional (3D) printing process, comprises presenting printing options (20) of the 3D printing process at a user interface (16); accepting settings (22) from the user interface (16) based on the presented printing options (20); determining a printing instruction (24) based on the settings (22), the printing instruction (24) to be used to manufacture a three-dimensional (3D) object; and determining a post-processing instruction (26) based on the settings (22), the post-processing instruction (26) to be used in post-processing the 3D object.

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：US20180086000A1

公开(公告)日：2018-03-29

申请号：US15562691

申请日：2015-05-29

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

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

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

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

Abstract: In some examples, an agent distributor may be to selectively deliver agent through nozzles of the agent distributor to portions of layers of build material in patterns derived from agent delivery control data representing slices of a three-dimensional object such that the portions are to solidify to form the slices in accordance with the patterns. While generating the three-dimensional object, the agent distributor may be primed such that a particle of the build material is removed from the agent distributor through at least one of the nozzles.

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：US20180001568A1

公开(公告)日：2018-01-04

申请号：US15542958

申请日：2015-01-26

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

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

IPC: B29C64/393 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/165 ,  B29C64/264

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/264 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G05B19/4015

Abstract: A method of calibrating an apparatus for generating a three-dimensional object is described in which a calibration substrate is generated by depositing build material and applying energy to the build material to form a fused surface; a calibration pattern is generated on the calibration substrate by depositing an agent on the calibration surface according to a predetermined pattern; and an attribute of the calibration pattern is measured.