公开(公告)号：US20230124156A1

公开(公告)日：2023-04-20

申请号：US18084804

申请日：2022-12-20

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

Inventor： Wei Huang ,  Gary J. Dispoto ,  Craig Peter Sayers

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

Abstract: In an example, a method includes operating, by a processor, on object model data and operating, on a processor, on pattern data. The object model data describes at least part of an object to be generated in additive manufacturing and the pattern data describes an object pattern intended to be formed on at least a portion of the part of the object to be generated in additive manufacturing. The method includes determining, by a processor, control data to control a print agent applicator to apply a pattern of fusing agent onto a part of a layer of build material. The pattern of fusing agent comprises a fusing agent area and a gap area that lacks fusing agent. The gap area corresponds to the object pattern such that no fusing agent is applied to a part of the layer of build material that corresponds to the object pattern.

公开(公告)号：US11607842B2

公开(公告)日：2023-03-21

申请号：US16606275

申请日：2017-10-25

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

Inventor： Wei Huang ,  Gary J. Dispoto

IPC: B29C64/165 ,  B29C64/218 ,  B29C64/268 ,  B29C64/393 ,  B29C64/40 ,  B33Y40/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: According to examples, a three-dimensional (3D) fabrication system may include a controller to identify a feature of an object to be fabricated and based on the identified feature having a size that is smaller than a predefined size, determine a thermal support for the identified feature. The controller may also control fabrication components to form, through application of energy, the determined thermal support from a first set of particles, form an intermediate section adjacent to the formed thermal support from a second set of particles, and form, through application of energy, the feature adjacent to the intermediate section from a third set of particles, in which heat from the thermal support is to reduce a thermal bleed rate of the third set of particles.

公开(公告)号：US11565472B2

公开(公告)日：2023-01-31

申请号：US16098106

申请日：2016-07-21

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

Inventor： Wei Huang ,  Lihua Zhao ,  Gary J. Dispoto

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y80/00 ,  B29C70/88 ,  B29C64/336 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/165 ,  B29C64/10 ,  B29C64/106 ,  G01N27/00

Abstract: A 3D object is additively formed via arranging non-conductive material relative to a receiving surface. During additive formation of the 3D object, a conductive channel is formed as part of the 3D object. In some instances, non-destructive fracture sensing is performed via measurement of an electrical parameter of the conductive channel.

公开(公告)号：US20220193993A1

公开(公告)日：2022-06-23

申请号：US17603203

申请日：2019-08-05

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

Inventor： Wei Huang ,  Craig Peter Sayers ,  Gary J. Dispoto

IPC: B29C64/165 ,  B29C64/209 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a build material distributor to deposit layers of powdered build material onto a bed and an agent distributor to form a slice of a three-dimensional (3D) printed object by selectively depositing at least one agent onto a layer of powdered build material. The additive manufacturing system also includes a controller. The controller 1) controls the build material distributor and the agent distributor to form the 3D printed object and 2) controls the agent distributor to form an object label, the object label to be within a body of the 3D printed object with fused material disposed over the object label. The object label does not receive an agent disposed thereon.

公开(公告)号：US20210394445A1

公开(公告)日：2021-12-23

申请号：US17256691

申请日：2019-03-15

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

Inventor： Wei Huang ,  Gary J. Dispoto ,  Craig Peter Sayers

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

Abstract: In an example, a method includes operating, by a processor, on object model data and operating, on a processor, on pattern data. The object model data describes at least part of an object to be generated in additive manufacturing and the pattern data describes an object pattern intended to be formed on at least a portion of the part of the object to be generated in additive manufacturing. The method includes determining, by a processor, control data to control a print agent applicator to apply a pattern of fusing agent onto a part of a layer of build material. The pattern of fusing agent comprises a fusing agent area and a gap area that lacks fusing agent. The gap area corresponds to the object pattern such that no fusing agent is applied to a part of the layer of build material that corresponds to the object pattern.

公开(公告)号：US20210224535A1

公开(公告)日：2021-07-22

申请号：US17108819

申请日：2020-12-01

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

Inventor： Craig Peter Sayers ,  Patrick Daney De Marcillac ,  Wei Huang

IPC: G06K9/00 ,  B29C64/386 ,  G06T7/55 ,  G06T7/60

Abstract: In example implementations, a method is provided. The method includes printing a three-dimensional (3D) object that includes a secondary structure. The secondary structure is removed. A representation of a surface of the 3D object where the secondary structure was removed is captured. The 3D object is authenticated based on the representation of the surface.

公开(公告)号：US20210205887A1

公开(公告)日：2021-07-08

申请号：US17054594

申请日：2018-09-26

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

Inventor： Wei Huang ,  Gary J. Dispoto

IPC: B22F10/14 ,  B29C64/165 ,  B29C33/38 ,  B29C33/44 ,  B33Y10/00 ,  B33Y80/00

Abstract: Three dimensional (3D) printed molds having breakaway features are disclosed. An example method for forming a mold having a cavity by creating a plurality of layers using an additive manufacturing process includes providing a build material and varying a fusion level applied to the build material to form a first fused area and a second fused area on a layer of the mold, the second fused area is to define a breakaway feature of the mold.

公开(公告)号：US20200262155A1

公开(公告)日：2020-08-20

申请号：US16607379

申请日：2017-10-25

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

Inventor： Wei Huang ,  Gary J. Dispoto

IPC: B29C64/40 ,  B29C64/393 ,  B29C64/165

Abstract: According to examples, a three-dimensional (3D) fabrication system may include a controller that may control an agent delivery system to deposit a fusing agent onto a fusing area of a layer of particles of build material. The controller may also control the agent delivery system to deposit an energy absorbing agent onto an unfused thermal support area of the layer of particles, the unfused thermal support area being located adjacent to the fusing area. The controller may further control an energy supply system to supply energy, in which supply of the energy is to cause the particles on which the fusing agent has been deposited to melt and a temperature of the particles in the unfused thermal support area to be raised to a level that is below a melting point temperature of the particles.

公开(公告)号：US10518473B2

公开(公告)日：2019-12-31

申请号：US15564393

申请日：2015-07-31

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

Inventor： Wei Huang ,  Jun Zeng ,  Yan Zhao ,  Scott White ,  Sebastia Cortes I Herms

IPC: B29C64/386 ,  B29C64/171 ,  B33Y10/00 ,  B33Y50/02 ,  G05B19/4099

Abstract: According to an example, an arrangement of parts to be printed in a build envelope of a three dimensional (3D) printer may be determined through identification of a plurality of parts to be printed and generation of a respective virtual bounding box for each of the plurality of parts. In one example, a determination may be made that a total volume occupied by the generated virtual bounding boxes falls below a predetermined threshold of the build envelope volume and an arrangement of the virtual bounding boxes inside the build envelope that results in a total height of the virtual bounding boxes being minimized may be determined, to enhance efficiency in printing of the plurality of parts by the 3D printer.

公开(公告)号：US12122102B2

公开(公告)日：2024-10-22

申请号：US17424720

申请日：2019-05-29

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

Inventor： Wei Huang ,  Nathan Moroney

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  G06T7/50 ,  G06T7/60 ,  G06T7/90 ,  G06T17/00

CPC classification number: B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  G06T7/50 ,  G06T7/60 ,  G06T7/90 ,  G06T17/00

Abstract: The present disclosure pertains to systems and methods for mapping an image to a three-dimensional pattern of relief features on a surface of an object for 3D printing. In some examples, a system may determine a pattern of relief features, including debossed relief features and/or embossed relief features, to create a shading pattern on the surface of 3D printed object that approximates the continuous halftones of an image.