公开(公告)号：US20230035587A1

公开(公告)日：2023-02-02

申请号：US17758093

申请日：2020-01-31

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

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

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

Abstract: Disclosed is a method that determines information associated with at least a portion of a build volume that comprises one or more 3D printed objects, and determines an amount of material to be applied to the build volume for use in annealing the one or more 3D printed objects of the build volume, on the basis of the information.

公开(公告)号：US20230027565A1

公开(公告)日：2023-01-26

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

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：US20220339876A1

公开(公告)日：2022-10-27

申请号：US17238358

申请日：2021-04-23

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

Inventor： Ismael Fernandez Aymerich ,  Cristina Dominguez Manchado ,  Roger Fadurdo Orellana ,  Manuel Freire Garcia

IPC: B29C64/386 ,  B33Y50/00 ,  G05B19/4099

Abstract: In some examples, a system receives information that represents a value of a physical property of a three-dimensional (3D) object as a function of a location of the 3D object built by an additive manufacturing machine. The system generates, based on the received information, a map that includes adjustment values corresponding to different locations of a layer of build material, the adjustment values when applied by the additive manufacturing machine to modify data representing a further 3D object to be built by the additive manufacturing machine.

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：US20210390219A1

公开(公告)日：2021-12-16

申请号：US17295346

申请日：2019-04-30

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

Inventor： Enrique Gurdiel Gonzalez ,  Jordi Sanroma Garrit ,  Manuel Freire Garcia

IPC: G06F30/10 ,  B29C64/393 ,  B33Y50/00

Abstract: In an example, a machine-readable medium stores instructions which, when executed by a processor may cause the processor to modify data for characterising geometrical modifications for use by each of a plurality of additive manufacturing apparatus, wherein a modification for a particular additive manufacturing apparatus is based on dimensions of objects generated by that apparatus.

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：US20210331402A1

公开(公告)日：2021-10-28

申请号：US16605225

申请日：2018-06-28

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

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

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

Abstract: An example method to control a 3D printing system is described. In that example a print agent is selectively deposited onto a portion of a build material layer and based on a reflectance of the portion of the build material layer, an amount of energy to be applied to the portion is determined.

公开(公告)号：US20210323238A1

公开(公告)日：2021-10-21

申请号：US16605208

申请日：2018-07-26

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

Inventor： Pol Fornos Martinez ,  Juan Antonio Victorio Ferrer ,  Manuel Freire Garcia

IPC: B29C64/393 ,  B29C64/153 ,  B29C64/245 ,  B29C64/232 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In one example, an apparatus comprising a controller to instruct a build platform to support a plurality of layers of build material in a build zone, wherein the build platform is moveable during a build of a three-dimensional object to change the size of the build zone, wherein the controller is to determine respective displacements of the build platform to successively receive each of the plurality of layers of build material in the build zone during the build, wherein at least one of the respective displacements is based on data determined from a three-dimensional object obtained in a previous build.

公开(公告)号：US10974458B2

公开(公告)日：2021-04-13

申请号：US16246046

申请日：2019-01-11

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

Inventor： Jordi Sanroma Garrit ,  Enrique Gurdiel Gonzalez ,  Victor Diego Gutierrez ,  Manuel Freire Garcia

IPC: B29C64/393 ,  G06F30/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00

Abstract: In an example, a method includes receiving, at at least one processor, object model data representing at least a portion of an object that is to be generated by an additive manufacturing apparatus by fusing build material within a fabrication chamber. An intended object placement location within the fabrication chamber may be determined, and a dimensional compensation to apply to the object model data may be determined using a mapping resource relating dimensional compensations to object placement locations. The determined dimensional compensation may be applied to the object model data to generate modified object model data using at least one processor.

公开(公告)号：US20180207876A1

公开(公告)日：2018-07-26

申请号：US15745830

申请日：2015-09-30

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

Inventor： Carmina Querol Esparch ,  Alejandro Manuel De Pena ,  Manuel Freire Garcia

IPC: B29C64/393 ,  B29C64/264 ,  B29C64/295 ,  B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/20 ,  B29C64/264 ,  B29C64/295 ,  B29C64/30 ,  B29C67/00 ,  B29C71/02 ,  B29K2101/12 ,  B29K2995/004 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: An example method for cooling a build volume is described. In one implementation, a heating mechanism is set to a temperature identified based on the build material information, and the build volume is heated using the heating mechanism for a time period identified based on the build material information.