公开(公告)号：US11597147B2

公开(公告)日：2023-03-07

申请号：US16608240

申请日：2018-07-31

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

Inventor： David A. Champion ,  Adriaan Spierings ,  Thomas Bauer

IPC: B29C64/214 ,  B29C64/153 ,  B22F12/67 ,  B33Y30/00 ,  B29C64/245

Abstract: In example implementations, a spreading blade is provided. The spreading blade includes a body portion, an ultrasonic vibration source, and a kicker. The ultrasonic vibration source is coupled to a top portion of the body portion to apply a vibration along a cross-sectional length of the body portion. The kicker is coupled to a side facing a process direction at a bottom end of the body portion. The kicker comprises a tip formed by a combination of two angled surfaces that extend from a lateral side of the body portion.

公开(公告)号：US11376796B2

公开(公告)日：2022-07-05

申请号：US16606033

申请日：2018-07-23

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

Inventor： Jordi Roca Vila ,  Sergio Gonzalez Martin ,  Daniel Mosher ,  David A. Champion ,  Jun Zeng

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

Abstract: A printing device for adapting a printing parameter in relation to the height of a layer of material deposited during an additive manufacturing process is disclosed. The printing device comprises a printing component to deposit a layer of material that is to be solidified so as to form at least a portion of an object, a controller to determine the height of the layer of material at various positions across the layer and to select voxels of a data model of the object, the selected voxels correspond to the height of the layer of material at said various positions, and the controller is further to use the selected voxels as input for calculating a printing parameter.

公开(公告)号：US20210354380A1

公开(公告)日：2021-11-18

申请号：US16608240

申请日：2018-07-31

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

Inventor： David A. Champion ,  Adriaan Spierings ,  Thomas Bauer

IPC: B29C64/214 ,  B29C64/245 ,  B33Y30/00

Abstract: In example implementations, a spreading blade is provided. The spreading blade includes a body portion, an ultrasonic vibration source, and a kicker. The ultrasonic vibration source is coupled to a top portion of the body portion to apply a vibration along a cross-sectional length of the body portion. The kicker is coupled to a side facing a process direction at a bottom end of the body portion. The kicker comprises a tip formed by a combination of two angled surfaces that extend from a lateral side of the body portion.

公开(公告)号：US11104029B2

公开(公告)日：2021-08-31

申请号：US15771561

申请日：2016-02-26

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik ,  David A. Champion

IPC: B28B1/00 ,  B33Y70/00 ,  B33Y10/00 ,  B29C64/165 ,  C04B35/26 ,  C04B35/626 ,  B29C35/08 ,  B29C35/02 ,  B29C64/112 ,  B29C64/291 ,  B33Y30/00 ,  B29K105/16

Abstract: In a three-dimensional printing method example, a build material is applied. A first liquid functional material is applied on at least a portion of the build material. The first liquid functional material includes ferromagnetic nanoparticles that are selected from the group consisting of an iron oxide, a ferrite, a combination of the iron oxide and a ferromagnetic metal oxide, and combinations thereof. The build material is exposed to electromagnetic radiation having a frequency ranging from about 5 kHz to about 300 GHz to sinter the portion of the build material in contact with the first liquid functional material.

公开(公告)号：US10882253B2

公开(公告)日：2021-01-05

申请号：US15757283

申请日：2015-12-18

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

Inventor： James Elmer Abbott, Jr. ,  David A. Champion ,  Chris Paul Schodin

IPC: B29C64/245 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y40/00 ,  B29C64/165 ,  B29C64/112 ,  B29C64/291 ,  B33Y50/02 ,  B29C64/393

Abstract: In example implementations, an apparatus includes a housing, a movable base, a tab portion and a coupling mechanism. The housing is comprised of a microwave transparent material. The movable base is coupled to the housing to receive build material that is digitally printed. The tab portion is coupled to a bottom portion of at least one wall of the housing. The tab portion stops the movable base. The coupling mechanism is coupled to the housing to removably attach the apparatus to a three dimensional printer.

公开(公告)号：US10857727B2

公开(公告)日：2020-12-08

申请号：US16169443

申请日：2018-10-24

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik ,  David A. Champion ,  James P. Shields

IPC: B29C64/165 ,  B22F1/00 ,  B29C64/40 ,  B33Y70/00 ,  B33Y10/00 ,  B29C64/393

Abstract: The present disclosure is drawn to material sets, methods and printed articles and container supports. In one example, a material set can include a particulate fusible build material having an average particle size ranging from about 0.01 μm to about 200 μm, wherein the particulate fusible build material is a polymer powder, a metal composite powder, or a combination thereof. A fusing ink includes a fusing agent in a first liquid vehicle, wherein the fusing agent fuses the particulate fusible build material when exposed to electromagnetic energy or thermal energy. A binding ink includes a binding agent in a second liquid vehicle, wherein the binding agent temporarily binds the fusible build material when exposed to moderate temperatures ranging from ambient to 150° C.

公开(公告)号：US20200213576A1

公开(公告)日：2020-07-02

申请号：US16608396

申请日：2017-09-14

Applicant: OREGON STATE UNIVERSITY ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Daniel Mosher ,  Brian Bay ,  David A. Champion

IPC: H04N13/246 ,  H04N13/296 ,  B33Y50/02 ,  B29C64/393

Abstract: Example methods, apparatus, systems, and articles of manufacturing for calibrating a stereo vision system are described herein. An example stereo vision calibration system includes an automated calibration target stand to support a calibration target. The example stereo vision calibration system further includes a calibrator to control the automated calibration target stand to move the calibration target to a plurality of positions according to a sequence of positions while the automated calibration target stand is disposed in an additive manufacturing (AM) machine, and control a stereo vision system of the AM machine to obtain images of the calibration target in the plurality of positions.

公开(公告)号：US20190054691A1

公开(公告)日：2019-02-21

申请号：US16169443

申请日：2018-10-24

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

Inventor： James Elmer Abbott, JR. ,  Vladek Kasperchik ,  David A. Champion ,  James P. Shields

IPC: B29C64/165 ,  B22F1/00 ,  B29C64/40

Abstract: The present disclosure is drawn to material sets, methods and printed articles and container supports. In one example, a material set can include a particulate fusible build material having an average particle size ranging from about 0.01 μm to about 200 μm, wherein the particulate fusible build material is a polymer powder, a metal composite powder, or a combination thereof. A fusing ink includes a fusing agent in a first liquid vehicle, wherein the fusing agent fuses the particulate fusible build material when exposed to electromagnetic energy or thermal energy. A binding ink includes a binding agent in a second liquid vehicle, wherein the binding agent temporarily binds the fusible build material when exposed to moderate temperatures ranging from ambient to 150° C.

公开(公告)号：US20230294358A1

公开(公告)日：2023-09-21

申请号：US17791548

申请日：2020-02-12

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

Inventor： Thomas Anthony ,  Ben Pon ,  Lihua Zhao ,  David A. Champion

IPC: B29C64/236 ,  B29C64/209 ,  B29C64/165 ,  B29C64/232 ,  B29C64/214 ,  B29C64/35 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B29C64/236 ,  B29C64/209 ,  B29C64/165 ,  B29C64/232 ,  B29C64/214 ,  B29C64/35 ,  B33Y30/00 ,  B33Y40/00

Abstract: A three-dimensional (3D) printing system may include a build volume, a slurry reservoir to contain a slurry of build material and liquid, and a slurry dispenser to receive the slurry from the slurry reservoir and movable in a direction across the build volume to dispense slurry across the build volume.

公开(公告)号：US20230033873A1

公开(公告)日：2023-02-02

申请号：US17866435

申请日：2022-07-15

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

Inventor： Mohammed S. Shaarawi ,  James McKinnell ,  David A. Champion ,  Vladek P. Kasperchik

IPC: B22F10/00 ,  B33Y70/00 ,  B33Y40/20 ,  B22F3/10 ,  B22F5/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/165 ,  B33Y70/10 ,  B22F10/14 ,  B22F10/85 ,  B22F10/64 ,  B33Y80/00 ,  B22F10/68 ,  B22F10/32 ,  B22F10/47 ,  B33Y40/00 ,  C09D11/033 ,  C09D11/38 ,  B22F1/05

Abstract: An apparatus is disclosed to create a breakaway junction for 3D printed parts. Powder is spread along a target zone, such as a build bed. A liquid functional agent is selectively dispensed upon the powder to form a 3D object, a supporting part, and the breakaway junction between them.