公开(公告)号：US20210205894A1

公开(公告)日：2021-07-08

申请号：US16074457

申请日：2017-01-31

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

Inventor： Greg Scott LONG ,  Douglas PEDERSON ,  David A. CHAMPION

IPC: B22F12/90 ,  G01N22/02 ,  B22F10/85 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00

Abstract: A system and method for additive manufacturing (AM) including forming a product via AM, placing a resonator adjacent the product as the product is being formed in the AM, and determining a property of the product. The resonator operates over a microwave frequency spectrum and emanates electromagnetic energy.

公开(公告)号：US20210323240A1

公开(公告)日：2021-10-21

申请号：US17272589

申请日：2019-04-22

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

Inventor： David A. CHAMPION ,  Anthony Peter HOLDEN ,  Douglas PEDERSON

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/277 ,  B29C64/227

Abstract: An example three-dimensional printing system receives a sensor response indicating a density of build material at positions of a layer of build material on a build platform. The three-dimensional printing system determines, based on the sensor response, an amount of energy to apply to the positions and instructs an energy source to apply the determined amount of energy to the positions.

公开(公告)号：US20210245434A1

公开(公告)日：2021-08-12

申请号：US17052087

申请日：2018-10-30

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

Inventor： David A. CHAMPION ,  Douglas PEDERSON

IPC: B29C64/264 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B28B1/00 ,  B28B17/00 ,  B22F12/41 ,  B22F10/85

Abstract: According to examples, an apparatus may include an agent delivery device to deliver a coalescing agent to selected locations of a build material layer and a plurality of microwave energy emitters, each of the microwave energy emitters including a tip to generate a focused microwave energy field onto a respective area near the tip, in which the tip is to be positioned to place a portion of the build material layer within the focused microwave energy field. The apparatus may also include a controller that may control the microwave energy emitters to direct microwave energy onto the build material layer.

公开(公告)号：US20240149542A1

公开(公告)日：2024-05-09

申请号：US18413468

申请日：2024-01-16

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

Inventor： Sterling CHAFFINS ,  Thomas A. SAKSA ,  Kevin P. DEKAM ,  Terry MCMAHON ,  Donald W. SCHULTE ,  Jami Ryan BARONE ,  Douglas PEDERSON

IPC: B29C70/88 ,  B22F10/14 ,  B22F10/36 ,  B29C64/153 ,  B29C64/165 ,  B29C64/393

CPC classification number: B29C70/882 ,  B22F10/14 ,  B22F10/36 ,  B29C64/153 ,  B29C64/165 ,  B29C64/393 ,  B33Y30/00

Abstract: In an example, an apparatus includes processing circuitry comprising a model assessment module to identify an indication of a conductive element within object model data representing an object to be printed and a print instruction module to generate print instructions to generate the object. The print instructions may include an instruction to print conductive agent to form the conductive element and an instruction to print a fusing agent comprising an instruction to reduce an amount of fusing agent to be printed in a region of the conductive element compared to at least one other region of the object.

公开(公告)号：US20210245436A1

公开(公告)日：2021-08-12

申请号：US17052100

申请日：2018-10-30

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

Inventor： David A. CHAMPION ,  Douglas PEDERSON ,  Peter J. KLAMMER

IPC: B29C64/282 ,  B29C64/393 ,  B29C64/153

Abstract: According to examples, an apparatus may include an agent delivery device to deliver a coalescing agent to a selected location of a build material layer and a plurality of microwave energy emitters, each of which may include a tip to generate a focused microwave energy field onto a respective area near the tip. The apparatus may also include a controller that may control delivery of a first signal to a first microwave energy emitter of the plurality of microwave energy emitters; receive an energy feedback signal corresponding to energy reflected back into the first microwave energy emitter; determine, based on the received energy feedback signal, a power level of a second signal to be delivered to a microwave energy emitter of the plurality of microwave energy emitters; and control delivery of the second signal at the determined power level to the microwave energy emitter.

公开(公告)号：US20210170678A1

公开(公告)日：2021-06-10

申请号：US16089130

申请日：2017-04-26

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

Inventor： Sterling CHAFFINS ,  Thomas A SAKSA ,  Kevin P. DEKAM ,  Terry MCMAHON ,  Donald W SCHULTE ,  Jami Ryan BARONE ,  Douglas PEDERSON

IPC: B29C64/153 ,  B29C64/165 ,  B29C64/393

Abstract: In an example, an apparatus includes processing circuitry comprising a model assessment module to identify an indication of a conductive element within object model data representing an object to be printed and a print instruction module to generate print instructions to generate the object. The print instructions may include an instruction to print conductive agent to form the conductive element and an instruction to print a fusing agent comprising an instruction to reduce an amount of fusing agent to be printed in a region of the conductive element compared to at least one other region of the object.