公开(公告)号：US20220080670A1

公开(公告)日：2022-03-17

申请号：US17418182

申请日：2019-04-30

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

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

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

Abstract: An example method of generating three-dimensional objects is disclosed. Object generation instructions to generate the object may be determined by defining a shell region of a layer of build material corresponding to the first portion of the object having a first color, and defining a fusing agent region on a layer of build material adjacent to the shell region on which fusing agent of a second color is to be applied and specifying an amount of colorant to be applied to the shell region wherein the object generation instructions specify application of fusing agent and colorant such that, when the layer of build material is heated using a heat source, the fusing agent region of the build material melts due to energy absorbed from the heat source and the build material of the shell region melts due, at least in part, to energy transfer from the fusing agent region.

公开(公告)号：US20220184889A1

公开(公告)日：2022-06-16

申请号：US17595336

申请日：2019-10-24

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

Inventor： Arthur H. Barnes ,  Adam Franks ,  Wesley R. Schalk

IPC: B29C64/282 ,  B29C64/236 ,  B29C64/205 ,  B29C64/393 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In some examples, an additive manufacturing machine includes an unfocused energy source to heat portions of a layer of build material as the unfocused energy source moves across the layer of build material during a build operation of a three-dimensional (3D) object. A focused energy source is controllable to selectively direct focused energy on the layer of build material during the build operation.

公开(公告)号：US09794444B2

公开(公告)日：2017-10-17

申请号：US15326432

申请日：2015-07-16

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

Inventor： Jan Morovic ,  Peter Morovic ,  Matthew D. Gaubatz ,  Adam Franks

IPC: H04N1/00 ,  H04N1/32 ,  G06T1/00 ,  H04N1/56 ,  H04N1/64

CPC classification number: H04N1/32309 ,  G06T1/0028 ,  H04N1/32224 ,  H04N1/56 ,  H04N1/644

Abstract: A method of embedding data in a printed output having at least two-dimensions is described in which content data for the printed output and data to be embedded in the printed output are obtained. An input property value for a content element from the content data is determined. This is used to determine an output value for a probabilistic distribution of a set of output material compositions for a spatial element of the printed output, corresponding to the content element, based on the data to be embedded and the input property value.

公开(公告)号：US20210101340A1

公开(公告)日：2021-04-08

申请号：US16607931

申请日：2018-07-31

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

Inventor： Adam Franks ,  Kevin E. Swier ,  Andrew L. Van Brockin ,  Ravi Prasad

IPC: B29C64/321 ,  B22F12/50 ,  B33Y10/00 ,  B33Y30/00

Abstract: A three-dimensional printing system may include a three-dimensional printer. The three-dimensional printer may include a station to receive and rotate a build material container having an axial port, an auger and at least one at least one actuator to move at least one of the build material container and the auger relative to one another to position the auger through the axial port into the build material container.

公开(公告)号：US11938681B2

公开(公告)日：2024-03-26

申请号：US15734594

申请日：2019-03-15

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

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

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

CPC classification number: B29C64/393 ,  B29C64/165 ,  B33Y50/02 ,  B29K2995/0021 ,  B33Y10/00

Abstract: In one example a method of generating a three-dimensional object in a 3D printing system using a fusing agent of a first colour and a build material having a second colour different from the first colour, and a detailing agent, comprises obtaining object model data describing an object to be generated, and determining a first portion of the object to be generated to have the second colour. The method comprises determining object generation instructions to generate the object by defining a gap region of a layer of build material that is to correspond to the first portion of the object to have the second colour on which no agents are to be applied, a band of detailing agent on a layer of build material immediately adjacent to the gap region to define an outer limit of the gap region and therefore a boundary of the first portion of the object, and a fusing agent region on a layer of build material adjacent to the gap region on which fusing agent is to be applied.