公开(公告)号：US11453169B2

公开(公告)日：2022-09-27

申请号：US17285055

申请日：2019-04-26

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

Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Ismael Fernandez Aymerich

IPC: B29C64/386 ,  B33Y50/02

Abstract: Certain examples relate to generating output print data representing at least one object. Output print data is generated by performing a geometric transformation on a part of object model data representing the identified region. The object model data represents the at least one object to be printed. The geometric transformation may use a transformation parameter which is determined based at least on the object model data and object property data. The object property data identifies a region of the at least one object and associates it with a selected physical property.

公开(公告)号：US20220143912A1

公开(公告)日：2022-05-12

申请号：US17414447

申请日：2019-08-02

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

Inventor： Davinia Font Calafell ,  Marc Borras Camarasa ,  Julia Almacellas Visa ,  Cristian Ferris Roig ,  Pol Fornos Martinez ,  Ismael Fernandez Aymerich ,  Hector Vega Vega

IPC: B29C64/259 ,  B29C64/295 ,  B29C64/245 ,  B33Y30/00 ,  B33Y40/20

Abstract: A mobile build unit (2) for selectively locating in a build chamber (4) of an additive manufacturing machine (6). The mobile build unit has a build platform (8) to receive build material; and a build unit heater (10) to heat layers of build volume formed on the build platform (8). The build unit heater (10) is movable between a first position in which the build unit heater (10) is stored, and a second position in which the build unit heater (10) is mounted over the build platform (8).

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：US20210370596A1

公开(公告)日：2021-12-02

申请号：US15734575

申请日：2019-02-20

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

Inventor： Hector Vega Ponce ,  Daniel Rosenblatt ,  Ismael Fernandez Aymerich

IPC: B29C64/291 ,  B29C64/393 ,  B29C64/295

Abstract: Certain examples described herein relate to adjusting an energy source of a 3D printing system. In certain cases, a build bed of a 3D printing system is arranged to receive a layer of build material and the energy source of the 3D printing system is controllable to provide energy to a zone of the build bed. The energy provided by the energy source associated with the zone is adjusted based on a difference between a predetermined heat loss of the build bed and a determined heat loss for the zone, where individual adjustments of energy provided to at least some zones of the build bed collectively provide a uniform heat loss across the build bed.

公开(公告)号：US20210331414A1

公开(公告)日：2021-10-28

申请号：US16608248

申请日：2018-07-26

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

Inventor： Luis Garcia Garcia ,  Alejandro Manuel de Pena Hempel ,  Ismael Fernandez Aymerich

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

Abstract: In an example, an additive manufacturing device comprises a sensor, a moveable radiation source and a controller. The controller may determine an output of the sensor at a point at which build material melts by causing the moveable radiation source to periodically move over a layer of the build material to provide radiation to the layer of build material and monitoring the output of the sensor.

公开(公告)号：US20210331405A1

公开(公告)日：2021-10-28

申请号：US16605779

申请日：2018-04-24

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

Inventor： Pol Fornos Martinez ,  Ismael Fernandez Aymerich ,  Manuel Freire Garcia

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

Abstract: In certain examples, a method comprises determining a fusing area density distribution of a build layer from build data relating to a build layer of a three-dimensional model to be printed by an additive manufacturing system. The method comprises, in response to a determination that a region of the build layer has a fusing area density outside of a fusing area density tolerance window, modifying the build layer to define a build layer in which the region has a fusing area density that is within the fusing area density tolerance window.

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：US12251881B2

公开(公告)日：2025-03-18

申请号：US17757788

申请日：2020-01-16

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

Inventor： Serigo Gonzalez Martin ,  Manuel Freire Garcia ,  Ismael Fernandez Aymerich

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

Abstract: In an example, a method includes obtaining a compensation model characterising a relationship between a location of an object within a fabrication chamber of an additive manufacturing apparatus and a geometrical compensation to be applied to a model of said object, wherein different geometrical compensation values are associated with different locations. In some examples the method further includes determining a magnitude of a dimension parameter of each object of a set of objects to be generated in a build operation. The method may include determining a spatial arrangement of objects to be generated within the build volume, based on the magnitude of the dimension parameters and the geometrical compensation values for an intended location of object generation in the spatial arrangement.

公开(公告)号：US12005650B2

公开(公告)日：2024-06-11

申请号：US17285056

申请日：2019-04-26

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

Inventor： Pol Fornos Martinez ,  Maria de las Mercedes Blanco Rollan ,  Ismael Fernandez Aymerich

IPC: B29C64/40 ,  B22F10/20 ,  B22F10/28 ,  B22F10/368 ,  B22F10/47 ,  B22F12/90 ,  B29C64/364 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/40 ,  B22F10/20 ,  B22F10/28 ,  B22F10/368 ,  B22F10/47 ,  B29C64/364 ,  B29C64/393 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2999/00 ,  B22F10/47 ,  B22F2203/11

Abstract: An apparatus comprises a processor and a machine-readable storage medium storing machine-readable instructions executable by the processor. The machine-readable instructions comprise instructions to cause the processor to create 3D print data including data defining one or more objects to be printed in a build chamber of a 3D printer and data defining, in addition to the one or more objects, a shield to be printed to shield the one or more printed objects in the build chamber to reduce heat dissipation to an outside of the build chamber. The shield is designed depending on a thermal behavior of the build chamber and/or depending on a thermal behavior of the one or more objects to be printed.