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：US20220314551A1

公开(公告)日：2022-10-06

申请号：US17753449

申请日：2019-09-25

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

Inventor： Roger Fadurdo Orellana ,  Ismael Fernandez Aymerich ,  Pol Fornos Martinez ,  Manuel Freire Garcia ,  Salvador Sanchez Ribes

IPC: B29C64/393 ,  B29C64/255 ,  B29C64/153 ,  B29C64/205 ,  B33Y50/02 ,  B33Y30/00

Abstract: A non-transitory machine-readable storage medium is encoded with instructions executable by a processor. The machine-readable storage medium includes instructions to modify data representing a three-dimensional object model, the three-dimensional object model for use in generating a three-dimensional object in a build chamber. The data is modified to include a container to substantially encapsulate contents of the build chamber comprising the three-dimensional object and non-solidified build material. A wall of the container comprises heat transfer control elements to control dissipation of heat from the contents of the container.

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：US20210178696A1

公开(公告)日：2021-06-17

申请号：US16081826

申请日：2016-05-12

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

Inventor： Alejandro Manuel de Pena ,  Luis Garcia Garcia ,  Salvador Sanchez Ribes

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/85 ,  B28B17/00

Abstract: In an example an additive manufacturing system for generating a three-dimensional object by processing successive layers of build material comprises a controller to: receive data relating to a three-dimensional object to be generated; calculate, based at least in part on the data relating to the three-dimensional object, an estimated time to process each layer of build material; determine the longest time of said estimated times; and configure the additive manufacturing system to process each layer of build material in a time which is the same, within a predetermined tolerance, for all of the layers, and which is at least as long as the determined longest time.

公开(公告)号：US20190263051A1

公开(公告)日：2019-08-29

申请号：US16317783

申请日：2016-10-19

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

Inventor： Salvador Sanchez Ribes ,  Hector Lebron ,  Juan J Hernandez ,  Emilio Carlos Cano

IPC: B29C64/106 ,  B29C35/16 ,  B29C64/205 ,  F28D1/02 ,  F28D1/06 ,  B29C64/264

Abstract: An apparatus and method for generating a three-dimensional object. The apparatus includes a build material area, at least one agent distributor with a fluid reservoir to store fluid agent and at least one fluid ejection die to selectively eject fluid agent in the build material area. A cooling system to remove heat from the at least one fluid ejection die has a heat sink. The at least one fluid ejection die is in thermal contact with the heat sink via the fluid agent of the fluid reservoir.

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：US20190061240A1

公开(公告)日：2019-02-28

申请号：US16070454

申请日：2016-05-12

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

Inventor： Ignacio Alejandre ,  Sergi Culubret ,  Salvador Sanchez Ribes ,  Bernardo A. Gutierrez

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

Abstract: In some examples, a printing system includes a printhead that is relatively moveable with respect to a print platform, and an airflow generator assembly to generate a first cooling airflow towards the printhead responsive to the printhead being at in a first inactive region on a first side of the print platform, and generate a second cooling airflow towards the printhead responsive to the printhead being in a second inactive region on a second, different side of the print platform.

公开(公告)号：US20180215104A1

公开(公告)日：2018-08-02

申请号：US15745939

申请日：2015-10-19

Applicant: Leticia RUBIO ,  Utpal Kumar SARKAR ,  Salvador SANCHEZ RIBES ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Leticia Rubio ,  Utpal Kumar Sarkar ,  Salvador Sanchez Ribes

IPC: B29C64/393 ,  B29C64/209 ,  B29C64/35 ,  B29C64/165 ,  B29C64/295 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/209 ,  B29C64/295 ,  B29C64/35 ,  B29C64/386 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: In an example, a processor comprises an ancillary print agent distribution module to determine instructions for a print control module. The print control module may be to control the distribution of print agent onto a first region of a layer of build material in an object fabrication chamber in an additive manufacturing process in which at least one object is generated by selective solidification of each of a plurality of layers of build material and the selective solidification of build material is determined by the distribution of at least one print agent. The instructions determined by the ancillary print agent distribution module may be to cause the print control module to control the distribution of print agent in a second region of a layer of build material in an object fabrication chamber as part of a process which is ancillary to object generation. The first and second regions may be spatially distinct.

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：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.