公开(公告)号：US10647053B2

公开(公告)日：2020-05-12

申请号：US16072123

申请日：2016-05-12

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

Inventor： Kristopher J. Erickson ,  Lihua Zhao ,  Howard S. Tom ,  Aja Hartman ,  Yan Zhao ,  Andrew E. Fitzhugh

IPC: B27N5/00 ,  B29C41/22 ,  B29C67/04 ,  B29C70/28 ,  B29C71/04 ,  B29C64/112 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29C67/00 ,  B29C64/165 ,  B29C64/264

Abstract: In an example of a three-dimensional (3D) printing method, a polymeric build material is applied. A fusing agent is selectively applied on at least a portion of the polymeric build material. A mechanical tailoring agent is selectively applied on at least a region of the portion. The polymeric build material is exposed to radiation, thereby fusing the at least the portion of the polymeric build material in contact with the fusing agent to form a layer. The mechanical tailoring agent forms a composite layer in the at least the region, and the composite layer has a different mechanical property than that of an area of the layer not in contact with the mechanical tailoring agent.

公开(公告)号：US11338508B2

公开(公告)日：2022-05-24

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

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：US20190030788A1

公开(公告)日：2019-01-31

申请号：US16072123

申请日：2016-05-12

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

Inventor： Kristopher J. Erickson ,  Lihua Zhao ,  Howard S. Tom ,  Aja Hartman ,  Yan Zhao ,  Andrew E. Fitzhugh

IPC: B29C64/112 ,  B29C64/264 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y70/00

Abstract: In an example of a three-dimensional (3D) printing method, a polymeric build material is applied. A fusing agent is selectively applied on at least a portion of the polymeric build material. A mechanical tailoring agent is selectively applied on at least a region of the portion. The polymeric build material is exposed to radiation, thereby fusing the at least the portion of the polymeric build material in contact with the fusing agent to form a layer. The mechanical tailoring agent forms a composite layer in the at least the region, and the composite layer has a different mechanical property than that of an area of the layer not in contact with the mechanical tailoring agent.

公开(公告)号：US11760011B2

公开(公告)日：2023-09-19

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 ,  B29C64/371 ,  B29C64/153 ,  B29C64/357 ,  B29C64/245 ,  B29C64/286

CPC classification number: B29C64/165 ,  B29C64/153 ,  B29C64/214 ,  B29C64/245 ,  B29C64/286 ,  B29C64/357 ,  B29C64/371 ,  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：US11167510B2

公开(公告)日：2021-11-09

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 ,  B29C64/393 ,  B29C64/118 ,  B33Y50/00 ,  B29C64/386 ,  B29C64/30 ,  B29C35/08 ,  B29C59/16 ,  B33Y50/02 ,  B33Y40/20

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：US11840031B2

公开(公告)日：2023-12-12

申请号：US17513744

申请日：2021-10-28

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

Inventor： Krzysztof Nauka ,  Andrew E. Fitzhugh ,  Lihua Zhao

IPC: B29C71/04 ,  B33Y50/00 ,  B29C64/118 ,  B29C64/386 ,  B29C64/393 ,  B29C64/30 ,  B29C35/08 ,  B29C59/16 ,  B33Y50/02 ,  B33Y80/00 ,  B33Y40/20

CPC classification number: B29C71/04 ,  B29C35/0805 ,  B29C59/165 ,  B29C64/118 ,  B29C64/30 ,  B29C64/386 ,  B29C64/393 ,  B33Y50/00 ,  B33Y50/02 ,  B29C2035/0833 ,  B29C2035/0838 ,  B33Y40/20

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：US11014306B2

公开(公告)日：2021-05-25

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 ,  B29C64/165 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/205 ,  B33Y50/00

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：US11167481B2

公开(公告)日：2021-11-09

申请号：US16098088

申请日：2016-07-27

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

Inventor： Robert Ulichney ,  Andrew E. Fitzhugh

IPC: B29C64/171 ,  B29C64/393 ,  B33Y80/00 ,  B29C64/386 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y50/00 ,  B29L31/00 ,  G06F30/00

Abstract: One example includes a three-dimensional (3D) printed object including a first lattice structure and a second lattice structure. The first lattice structure includes a first matrix having a first length, a first width, and a first height. The second lattice structure includes a second matrix having a second length, a second width, and a second height. The second length times two is a factor of the first length, the second width times two is a factor of the first width, and the second height times two is a factor of the first height.

公开(公告)号：US20190152139A1

公开(公告)日：2019-05-23

申请号：US16098088

申请日：2016-07-27

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

Inventor： Robert Ulichney ,  Andrew E. Fitzhugh

IPC: B29C64/171 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

Abstract: One example includes a three-dimensional (3D) printed object including a first lattice structure and a second lattice structure. The first lattice structure includes a first matrix having a first length, a first width, and a first height. The second lattice structure includes a second matrix having a second length, a second width, and a second height. The second length times two is a factor of the first length, the second width times two is a factor of the first width, and the second height times two is a factor of the first height.