公开(公告)号：US11340597B2

公开(公告)日：2022-05-24

申请号：US16978227

申请日：2018-04-27

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

Inventor： Jun Zeng ,  Juan Carlos Catana ,  Sam A. Stodder

IPC: G05B19/418 ,  B33Y50/00 ,  B29C64/386 ,  G06Q10/06

Abstract: 3-D printing batch analysis is disclosed. A disclosed example apparatus includes a processor to generate a plurality of batches, wherein each of the batches represent an arrangement of a plurality of parts to be printed in a volume, discretize the batches into slices, and determine risk values of the slices based on the respective geometric primitives. The processor is to also determine aggregate risk values corresponding to the batches based on the risk values of the slices of the respective batches, and select a batch of the plurality of batches based on the aggregate risk values. The example apparatus also includes a printer to print the selected batch in the volume.

公开(公告)号：US20200247110A1

公开(公告)日：2020-08-06

申请号：US16753267

申请日：2018-01-18

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

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

IPC: B33Y10/00 ,  B33Y30/00

Abstract: A system for forming an object, the system including: a carriage, wherein the carriage moves above an area for forming the object and laterally with respect to the area, the carriage comprising an electromagnetic radiation source to induce heating of material in the area; a thermal imaging device to image the area, wherein the thermal imaging device captures a plurality of sequential images; and a processor, wherein the processor uses the plurality of sequential images to create a temperature map of the area which includes compensation for the cooling which occurs during the movement of the carriage lateral to the area.

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：US20210365017A1

公开(公告)日：2021-11-25

申请号：US16978227

申请日：2018-04-27

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

Inventor： Jun Zeng ,  Juan Carlos Catana ,  Sam A. Stodder

IPC: G05B19/418 ,  G06Q10/06 ,  B29C64/386 ,  B33Y50/00

Abstract: 3-D printing batch analysis is disclosed. A disclosed example apparatus includes a processor to generate a plurality of batches, wherein each of the batches represent an arrangement of a plurality of parts to be printed in a volume, discretize the batches into slices, and determine risk values of the slices based on the respective geometric primitives. The processor is to also determine aggregate risk values corresponding to the batches based on the risk values of the slices of the respective batches, and select a batch of the plurality of batches based on the aggregate risk values. The example apparatus also includes a printer to print the selected batch in the volume.

公开(公告)号：US11420395B2

公开(公告)日：2022-08-23

申请号：US16606741

申请日：2018-04-30

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

Inventor： Sunil Kothari ,  Juan Carlos Catana ,  Tod Heiles

IPC: B29C64/393 ,  G06T7/66 ,  B29C64/112 ,  G06T7/00

Abstract: In some examples, with respect to region of interest monitoring and control for additive manufacturing, a blob detection analysis may be performed on first and second component images associated with additive manufacturing of a component, and blobs that remain a same shape and include same centroids on the first and second component images may be identified. A further blob detection analysis may be performed on first and second thermal images associated with the first and second component images, and a determination may be made as to whether one of the identified blobs includes a same shape and a different centroid between the first and second thermal images. Based on a determination that the one of the identified blobs includes the same shape and the different centroid, an indication of a thermal camera misalignment associated with the additive manufacturing may be generated.

公开(公告)号：US20210362428A1

公开(公告)日：2021-11-25

申请号：US16606741

申请日：2018-04-30

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

Inventor： Sunil Kothari ,  Juan Carlos Catana ,  Tod Heiles

IPC: B29C64/393 ,  B29C64/112 ,  G06T7/00 ,  G06T7/66

Abstract: In some examples, with respect to region of interest monitoring and control for additive manufacturing, a blob detection analysis may be performed on first and second component images associated with additive manufacturing of a component, and blobs that remain a same shape and include same centroids on the first and second component images may be identified. A further blob detection analysis may be performed on first and second thermal images associated with the first and second component images, and a determination may be made as to whether one of the identified blobs includes a same shape and a different centroid between the first and second thermal images. Based on a determination that the one of the identified blobs includes the same shape and the different centroid, an indication of a thermal camera misalignment associated with the additive manufacturing may be generated.