公开(公告)号：US20210268727A1

公开(公告)日：2021-09-02

申请号：US16075672

申请日：2017-01-31

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

Inventor： Ning GE ,  Steven J. SIMSKE ,  Andrew E. FITZHUGH ,  Lihua ZHAO

IPC: B29C64/165 ,  B29C64/214 ,  B29C64/371 ,  B29C64/245 ,  B29C64/286 ,  B29C64/357 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: According to an example, an apparatus may include an agent delivery device to selectively deliver an agent onto a layer of build material particles. The apparatus may also include an energy source to apply energy onto the layer of build material particles to selectively fuse the build material particles in the layer based upon the locations at which the agent was delivered and a chamber formed of a plurality of walls, in which the agent delivery device and the energy source are housed inside the chamber. The apparatus may further include a vapor source to supply vapor into the chamber to wet the build material particles inside the chamber.

公开(公告)号：US20220258416A1

公开(公告)日：2022-08-18

申请号：US17740029

申请日：2022-05-09

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

Inventor： Ning GE ,  Steven J. SIMSKE ,  Andrew E. FITZHUGH ,  Lihua ZHAO

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/214 ,  B29C64/357 ,  B29C64/245 ,  B29C64/286 ,  B29C64/371

Abstract: According to an example, an apparatus may include an agent delivery device to selectively deliver an agent onto a layer of build material particles. The apparatus may also include an energy source to apply energy onto the layer of build material particles to selectively fuse the build material particles in the layer based upon the locations at which the agent was delivered and a chamber formed of a plurality of walls, in which the agent delivery device and the energy source are housed inside the chamber. The apparatus may further include a vapor source to supply vapor into the chamber to wet the build material particles inside the chamber.

公开(公告)号：US20210206114A1

公开(公告)日：2021-07-08

申请号：US16075606

申请日：2017-07-10

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

Inventor： Morgan T. SCHRAMM ,  Matthew A. SHEPHERD ,  Vanessa VERZWYVELT ,  David M. BERFANGER ,  Jake WRIGHT ,  Hector LEBRON ,  Andrew E. FITZHUGH

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

Abstract: In an example, a method includes determining an additive manufacturing process instruction, the additive manufacturing process instruction comprising an instruction specifying a coverage of a set of print agents comprising a fusing agent and a colorant to be applied to build material. A color and a behavioural property of carrying out an additive manufacturing process according to the additive manufacturing process instruction may be determined and, in response to a determination that the behavioural property meets predetermined parameters, the instruction and the color may be added to a color mapping resource.

公开(公告)号：US20210197503A1

公开(公告)日：2021-07-01

申请号：US16075671

申请日：2017-02-28

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

Inventor： Krzysztof NAUKA ,  Andrew E. FITZHUGH ,  Lihua ZHAO

IPC: B29C71/04 ,  B29C64/118 ,  B29C64/30 ,  B29C35/08 ,  B29C59/16

Abstract: According to examples, an apparatus includes a processor and a memory on which is stored machine readable instructions. The instructions may cause the processor to identify an intended surface property level for a surface of a three-dimensional (3D) object, determine an amount of radiation to be applied as a flash of radiation onto the surface to obtain the intended surface property level, and output the determined amount of radiation to be applied as a flash of radiation, in which a radiation source is to flash apply the determined amount of radiation onto the surface of the 3D object.

公开(公告)号：US20190152156A1

公开(公告)日：2019-05-23

申请号：US16097687

申请日：2016-07-21

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Ingeborg TASTL ,  Melanie M. GOTTWALS ,  Andrew E. FITZHUGH ,  Gary J. DISPOTO ,  Lihua ZHAO

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

Abstract: In an example, a processing apparatus includes an interface to receive data representing a three-dimensional object. The data includes an object description comprising object property data. The processing apparatus comprises a mapping module to map the object description to an object generation description which includes at least one print material instruction associated with a predetermined combination of print materials from a set of print materials. The mapping module includes a plurality of mapping resources and each mapping resource associates combinations of print materials from the set of print materials with values of at least one object property. At least one object property of one mapping resource is different to at least one object property of another mapping resource. The processing apparatus also includes a selection module to select, for at least part of the object, one of the plurality of mapping resources to carry out mapping of the object description.

公开(公告)号：US20180297286A1

公开(公告)日：2018-10-18

申请号：US15569381

申请日：2015-07-09

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

Inventor： Jacob Tyler WRIGHT ,  Bernardo a. GUTIERREZ ,  Sergio PUIGARDEU ARAMENDIA ,  Ali EMAMJOMEH ,  Lihua ZHAO ,  Andrew E. FITZHUGH

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/205

Abstract: An agent distributor may be to selectively deliver agent at a first contone density and at a second contone density different from the first contone density respectively onto an interior portion and a surface portion of successive layers of build material in respective first and second patterns in accordance with data representing a three-dimensional object to be generated, so that the build material is to solidify to form slices of the three-dimensional object in accordance with the first and second patterns, and so that the three-dimensional object is to achieve a target surface roughness as a result of the second contone density of the second pattern.

公开(公告)号：US20180141324A1

公开(公告)日：2018-05-24

申请号：US15570365

申请日：2015-07-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P

Inventor： Ingeborg TASTI ,  Nathan MORONEY ,  Peter MOROVIC ,  Jan MOROVIC ,  Andrew E. FITZHUGH ,  Jake WRIGHT

IPC: B33Y50/02 ,  B29C64/393 ,  B29C64/112 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B33Y50/02 ,  B29C64/112 ,  B29C64/386 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00

Abstract: Examples analyze three-dimensional printing specifications associated with a three-dimensional printing device to determine test angles for a test object and test surfaces corresponding to the test angles for the test object. Examples generate the test object for color calibration for the three-dimensional printing device based at least in part on the test angles and test surfaces that are configured with at least one test color.