公开(公告)号：US11426943B2

公开(公告)日：2022-08-30

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 ,  B29C64/165 ,  B29C64/295 ,  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：US11969949B2

公开(公告)日：2024-04-30

申请号：US17420074

申请日：2019-01-10

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

Inventor： Sunil Kothari ,  Kelly Ronk ,  Anthony Powell ,  Jun Zeng ,  Md Abdullah Al Hafiz Khan ,  Tod Heiles ,  Goffril Obegi

IPC: B29C64/393 ,  B29C64/379 ,  B33Y30/00 ,  B33Y50/02 ,  G06T7/00

CPC classification number: B29C64/393 ,  B29C64/379 ,  B33Y30/00 ,  B33Y50/02 ,  G06T7/0004 ,  G06T2207/20084 ,  G06T2207/30164

Abstract: A method of custom print mode generation in a three-dimensional (3D) printing device may include printing a plurality of parts with a plurality of 3D printing devices, the parts each being printed using different process parameters, and capturing a plurality of images of the parts. The method may also include, with an image analysis module, analyzing the images to classify the parts into a plurality of defect gradings, and adjusting a number of the process parameters based on characteristics of the parts identified by a user as undesirable. The examiner may also include, with a recommending module, creating a custom print mode based on the parts defect gradings and adjusted process parameters.

公开(公告)号：US11409261B2

公开(公告)日：2022-08-09

申请号：US16077669

申请日：2017-01-27

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

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

IPC: G05B19/4099 ,  B33Y50/02 ,  B29C64/393 ,  G05B6/00 ,  B29C64/386 ,  B22F10/20 ,  B22F10/30

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：US20220080672A1

公开(公告)日：2022-03-17

申请号：US17420074

申请日：2019-01-10

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

Inventor： Sunil Kothari ,  Kelly Ronk ,  Anthony Powell ,  Jun Zeng ,  Md Abdullah Al Hafiz Khan ,  Tod Heiles ,  Goffril Obegi

IPC: B29C64/393 ,  B29C64/379 ,  G06T7/00 ,  B33Y50/02 ,  B33Y30/00

Abstract: A method of custom print mode generation in a three-dimensional (3D) printing device may include printing a plurality of parts with a plurality of 3D printing devices, the parts each being printed using different process parameters, and capturing a plurality of images of the parts. The method may also include, with an image analysis module, analyzing the images to classify the parts into a plurality of defect gradings, and adjusting a number of the process parameters based on characteristics of the parts identified by a user as undesirable. The examiner may also include, with a recommending module, creating a custom print mode based on the parts defect gradings and adjusted process parameters.

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.