公开(公告)号：WO2021211088A1

公开(公告)日：2021-10-21

申请号：PCT/US2020/027937

申请日：2020-04-13

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

Inventor： HUANG, Wei ,  ALLEN, William J. ,  DISPOTO, Gary J.

IPC: B29C64/171 ,  B29C64/20 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y80/00

Abstract: A device is to additively manufacture a 3D assembly, which comprises a first 3D object and a second 3D object. The second 3D object is at least partially contained within the first 3D object, and is releasably secured relative to the first 3D object, in a position to defer independent deployment of the second 3D object.

公开(公告)号：WO2021118555A1

公开(公告)日：2021-06-17

申请号：PCT/US2019/065676

申请日：2019-12-11

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

Inventor： HARTMAN, Aja ,  JANGAM, John Samuel Dilip ,  HUANG, Wei ,  ANTHONY, Thomas Craig ,  DISPOTO, Gary J. ,  ZHAO, Lihua

IPC: B29C64/165 ,  B29C64/129 ,  B33Y10/00

Abstract: The present disclosure relates to a three-dimensional printing kit comprising: a powder bed material comprising polymer particles; a fusing agent comprising a radiation absorber and a liquid carrier; and a magnetic marking agent comprising magnetic nanoparticles, a humectant and a liquid carrier, wherein the concentration of magnetic nanoparticles is 5 to 70 weight % based on the total weight of the magnetic agent. The present disclosure also relates to a method of three-dimensional (3D) printing a 3D printed object. The method comprises: selectively applying a magnetic marking agent onto powder bed material, wherein the powder bed material comprises polymer particles, and wherein the magnetic marking agent comprises magnetic nanoparticles and a liquid carrier; selectively fusing the powder bed material, such that the magnetic nanoparticles are incorporated in the 3D printed object in a predetermined arrangement that forms a detectable marker in the 3D printed object.

公开(公告)号：WO2021118535A1

公开(公告)日：2021-06-17

申请号：PCT/US2019/065409

申请日：2019-12-10

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

Inventor： HUANG, Wei ,  DISPOTO, Gary J.

IPC: B29C64/20 ,  B33Y10/00 ,  B29C64/165 ,  B33Y30/00

Abstract: In one example in accordance with the present disclosure, a system is described. The system includes a fracture channel controller to determine fracture channels for a three-dimensional (3D) printed object. Portions of the 3D printed object along fracture channels are to be solidified to a lesser degree as compared to non-channel portions of the 3D printed object. The system also includes an additive manufacturing controller to control an additive manufacturing device. The additive manufacturing controller controls the additive manufacturing device to 1) solidify portions of a layer of powdered build material to form a slice of the 3D printed object and 2) selectively solidify fracture channels in the slice, wherein the fracture channels are solidified to a lesser degree as compared to non-channel portions.

公开(公告)号：WO2019209301A1

公开(公告)日：2019-10-31

申请号：PCT/US2018/029580

申请日：2018-04-26

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

Inventor： KOTHARI, Sunil ,  ZENG, Jun ,  DISPOTO, Gary J. ,  SEAN, Viseth

IPC: B29C64/386 ,  B33Y50/00

Abstract: A system and method for providing three dimensional printing production quality prediction is described herein. The system may include logic to scan a region of interest associated with a layer of a plurality of parts during printing to obtain an input for the region of interest and compute an input metric associated with the layer based on the input. In response to an initial set of print jobs, at least a portion of the plurality of parts is mechanically tested to determine at least one output. In response to a production print job, a likelihood of a part of the plurality of parts to satisfy a quality specification is predicted by inputting the input metric to at least one machine learning function comprising the at least one output, wherein the at least one machine learning function is trained during the initial set of print jobs.

公开(公告)号：WO2018199967A1

公开(公告)日：2018-11-01

申请号：PCT/US2017/029963

申请日：2017-04-27

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

Inventor： KOTHARI, Sunil ,  ZENG, Jun ,  DISPOTO, Gary J. ,  SCHALK, Wesley R.

IPC: B29C64/153 ,  B29C64/314 ,  B29C64/321 ,  B29C64/393 ,  B33Y40/00 ,  B33Y50/02

CPC classification number: B29C64/357 ,  B29C64/314 ,  B29C64/393 ,  B33Y40/00 ,  B33Y50/02

Abstract: According to an example, an apparatus may include a processor and a memory on which is stored machine readable instructions that are to cause the processor to determine a number of 3D object formation cycles that a batch of build material particles has undergone. The instructions may also cause the processor to identify a feature for a fiduciary object to be supplied among the build material particles, in which the feature is based upon to the determined number of 3D object formation cycles, and control a supply device to supply a fiduciary object having the identified feature among the build material particles.

公开(公告)号：WO2018140034A1

公开(公告)日：2018-08-02

申请号：PCT/US2017/015339

申请日：2017-01-27

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

Inventor： KOTHARI, Sunil ,  LI, Kristopher ,  SEAN, Viseth ,  ZENG, Jun ,  ZHAO, Lihua ,  OBEGI, Goffril ,  DISPOTO, Gary J. ,  HEILES, Tod

IPC: B29C64/386 ,  B29C64/393 ,  B33Y50/02

Abstract: In some examples, a distribution of values of a property of a given layer to be printed as part of three-dimensional (3D) printing is predicted, wherein the predicting is based on a distribution of values of the property in a previous layer that has been printed as part of the 3D printing. 3D printing of an object is controlled based on the predicted distribution of values of the property of the given layer.

公开(公告)号：WO2018140033A1

公开(公告)日：2018-08-02

申请号：PCT/US2017/015337

申请日：2017-01-27

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

Inventor： KOTHARI, Sunil ,  ZENG, Jun ,  LI, Kristopher ,  OBEGI, Goffril ,  ZHAO, Lihua ,  DISPOTO, Gary J. ,  SEAN, Viseth ,  HEILES, Tod

IPC: B29C64/386 ,  B33Y50/02 ,  G06F17/40

Abstract: In some examples, a request to print a first three-dimensional (3D) part is received. In response to determining that the first 3D part is not similar to any 3D part referred to by an information base, a representation of the first 3D part is extracted, an indication to conduct an operation to produce a design rule for the first 3D part is sent. In response to determining that the first 3D part is similar to a matching 3D part referred to by the information base, a design rule for the matching 3D part is retrieved to print the first 3D part, where the design rule for the matching 3D part specifies a dependency of a property of the matching 3D part on an aspect associated with printing the matching 3D part.

公开(公告)号：WO2021211096A1

公开(公告)日：2021-10-21

申请号：PCT/US2020/028089

申请日：2020-04-14

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

Inventor： HUANG, Wei ,  WOODLOCK, David C. ,  DISPOTO, Gary J.

IPC: B29C64/10 ,  B29C64/20 ,  B33Y30/00 ,  B33Y10/00

Abstract: A device to additively manufacture a first 3D object comprises at least a first portion defining a lattice structure of elements. The lattice structure includes a separation path extending at least partially within an interior portion of the lattice structure and the separation path includes a first release boundary extending through some of the elements along the separation path.

公开(公告)号：WO2021080571A1

公开(公告)日：2021-04-29

申请号：PCT/US2019/057525

申请日：2019-10-23

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

Inventor： HUANG, Wei ,  DISPOTO, Gary J. ,  ADAMS, Guy

IPC: B29C64/30 ,  B33Z40/00

Abstract: Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise an additive manufacturing device including hardware to form a three-dimensional (3D) model, a memory resource, and a processing resource to receive data related to the 3D model, modify the data related to the 3D model to include a protective structure connected to the 3D model by a fusion bond, and dispense, based on the modified data, a printing agent onto build material layers to produce the 3D model and the protective structure around a portion of the 3D model.

公开(公告)号：WO2020153948A1

公开(公告)日：2020-07-30

申请号：PCT/US2019/014707

申请日：2019-01-23

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

Inventor： KOTHARI, Sunil ,  HEILES, Tod ,  BOCKMAN, Luke ,  DISPOTO, Gary J. ,  KHAN, Md Abdullah Al Hafiz ,  TASTL, Ingeborg

IPC: G06F3/12 ,  B29C64/393

Abstract: A grazing light system for detecting three-dimensional (3D) part lift and drag may include a grazing light directed along an x, y plane of a build region to illuminate the surface of the build region, an image capture device to capture an image of the build region as illuminated by the grazing light, and an image analysis module to detect protrusions of the part along the x, y plane based on variations of luminance information within data representing the image.