公开(公告)号：US20230166453A1

公开(公告)日：2023-06-01

申请号：US17911181

申请日：2020-04-09

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

Inventor： Wei Huang ,  William J. Allen ,  Gary J. Dispoto

IPC: B29C64/393 ,  B29C64/153 ,  B33Y10/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/153 ,  B33Y10/00 ,  B33Y50/02

Abstract: A method includes additively manufacturing a three-dimensional object including a selectable parameter to control at least one thermal parameter of the three-dimensional object.

公开(公告)号：US11511534B2

公开(公告)日：2022-11-29

申请号：US16606767

申请日：2018-03-19

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

Inventor： Sunil Kothari ,  Juan Carlos Catana ,  Tod Heiles ,  Jun Zeng ,  Gary J. Dispoto

IPC: B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/393 ,  B29C64/165 ,  B22F10/30

Abstract: In an example, an apparatus includes an image processing system, a print engine, and a vision system. The image processing system generates electronic signals based on a model of an object to be fabricated using an additive manufacturing process. The print engine performs the additive manufacturing process in a plurality of passes based on the electronic signals. The vision system acquires a plurality of thermal images of the plurality of passes and assigns individual passes to individual images based on data acquired during a build of a calibration object by the additive manufacturing process. The print engine may further include a material coater to spread a powder coating material, a plurality of fluid ejection devices to eject a fusing agent, and an emitter to emit energy to fuse the fusing agent and the powder coating material into a layer of the object to be fabricated.

公开(公告)号：US20220227041A1

公开(公告)日：2022-07-21

申请号：US17608529

申请日：2019-09-09

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

Inventor： Wei Huang ,  Gary J. Dispoto

IPC: B29C64/165 ,  B29C64/282 ,  B29C64/268 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

Abstract: An example system includes a plurality of energy emitters to deliver energy to a material bed to fuse build material at a plurality of locations receiving the energy. The system also includes a controller to a controller to determine an amount of energy to deliver to each location to achieve a fusing condition based on data indicating the plurality of locations to be fused and based on predicted thermal transfer between the plurality of locations receiving the energy. The controller also is to cause the plurality of energy emitters to deliver the determined amount of energy to each location of the material bed.

公开(公告)号：US11335073B2

公开(公告)日：2022-05-17

申请号：US16074466

申请日：2016-09-26

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

Inventor： Jun Zeng ,  Scott White ,  Federico Martinez ,  Ana Del Angel ,  Gary J. Dispoto ,  Sebastia Cortes I Herms

IPC: G06T19/20 ,  G06T17/00 ,  G06F30/17 ,  B33Y50/00 ,  B29C64/386 ,  G06F119/18

Abstract: Examples disclosed herein relate to selecting a 3D printing parameter based on voxel property association and conflict resolution. In one implementation, a processor assigns properties to a voxel of a 3D print object based on a first and second zone including the voxel and a condition of a first property associated with the first zone and a condition of a second property associated with the second zone. The processor may update the assigned properties to resolve conflicts between the properties and select a 3D printing parameter based on the assigned properties.

公开(公告)号：US20220063202A1

公开(公告)日：2022-03-03

申请号：US17420079

申请日：2019-01-15

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

Inventor： Wei Huang ,  Gary J. Dispoto

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

Abstract: Some examples include an additive manufacturing system including a processor and a memory to store instructions to cause the processor to ate print data related to a three-dimensional build object. The generated print data comprises defined print data to print a first part and a second part of the object. The defined print data is to orient and position each of the first part and the second part of the object within a build area, the first part including a first mating section, the second part including a second mating section, the first and second mating sections shaped and sized to be matingly coupled to form the build object, to adjacently align the first and second mating sections within the build area, and to separate the aligned first and second mating sections with a gap defined between the first and second parts along the aligned first and second mating sections.

公开(公告)号：US20220024126A1

公开(公告)日：2022-01-27

申请号：US17298531

申请日：2019-04-17

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

Inventor： Wei Huang ,  Gary J. Dispoto

IPC: B29C64/188 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/268

Abstract: An apparatus, and related methods and machine readable programs are disclosed herein for additive manufacturing. An implementation of an apparatus includes a processor circuit, a first dispenser coupled to the processor circuit to deposit a sinterable material, a second dispenser coupled to the processor circuit to deposit colorant on the layer of sinterable material, and a laser coupled to the processor circuit to scan across and to selectively fuse the layer of sinterable material.

公开(公告)号：US20210362402A1

公开(公告)日：2021-11-25

申请号：US17256683

申请日：2019-01-23

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

Inventor： Sunil Kothari ,  Tod Heiles ,  Luke Bockman ,  Gary J. Dispoto ,  Md Abdullah Al Hafiz Khan

IPC: B29C64/153 ,  B29C64/218 ,  B29C64/273 ,  B29C64/393 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A system for detecting three-dimensional (3D) part drag includes a layer deposition device, and a sensor to detect a change in a process parameter associated with the operation of the layer deposition device within a 3D part build region of a 3D printing device on which a part is built, the change in a process parameter indicating part drag.

公开(公告)号：US20210291456A1

公开(公告)日：2021-09-23

申请号：US16472929

申请日：2017-04-19

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

Inventor： Sunil Kothari ,  Tod Heiles ,  Juan Carlos Salazar ,  Goffril Obegi ,  Jun Zeng ,  Gary J. Dispoto

IPC: B29C64/393 ,  B29C64/295 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A control and feedback technique to determine the proper location of powder control temperature regions includes detecting solid parts having specified shape and thermal characteristics. The solid parts are generated by a 3D printer. The solid parts include powder material fused on a layer by layer basis. A powder control temperature region is selected in each layer of powder material, wherein the region is located in unfused powder material adjacent to the solid parts, and wherein the region is selected based on characteristics of the shape of a build area and thermal imaging associated with any of a structural formation of the solid parts adjacent to the region, and an amount of thermal energy radiated by the solid parts adjacent to the region. The amount of thermal energy to cause fusing of the powder material on each subsequent layer is modified based on location of the powder control temperature region.

公开(公告)号：US11059229B2

公开(公告)日：2021-07-13

申请号：US16077672

申请日：2017-01-27

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

Inventor： Sunil Kothari ,  Jun Zeng ,  Kristopher Li ,  Goffril Obegi ,  Lihua Zhao ,  Gary J. Dispoto ,  Viseth Sean ,  Tod Heiles

IPC: G05B19/4097 ,  B29C64/393 ,  B29C64/386 ,  B33Y50/00 ,  B33Y50/02

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：US10857737B2

公开(公告)日：2020-12-08

申请号：US16557950

申请日：2019-08-30

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

Inventor： Jun Zeng ,  Sunil Kothari ,  Gary J. Dispoto

IPC: B29C67/00 ,  B33Y50/00 ,  G05B1/04 ,  B29C64/386 ,  G05B19/4099 ,  G06Q10/08

Abstract: Examples disclosed herein relate to determining a manufacturing batch. In one implementation, the manufacturing batch relates to 3D printing. A processor may determine component parts of a product that. In one implementation, a processor determines a batch of the component parts related to different products based on a comparison to other potential batches.