公开(公告)号：US20210402469A1

公开(公告)日：2021-12-30

申请号：US17054556

申请日：2019-03-15

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

Inventor： Krzysztof Nauka ,  Vladek Kasperchik ,  Mohammed S. Shaarawi

IPC: B22F1/00 ,  B22F10/28 ,  B22F10/10

Abstract: Described herein are kits, methods, and systems for printing metal three-dimensional objects. In an example, described is a multi-fluid kit for three-dimensional printing comprising: a first fluid comprising a first liquid vehicle comprising metal or metal precursor particles; and a second fluid comprising a second liquid vehicle comprising latex polymer particles dispersed therein, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm, and wherein the metal or metal precursor particles comprise metal nanoparticles, metal oxide nanoparticles, metal oxide nanoparticles and a reducing agent, or combinations thereof.

公开(公告)号：US20190210362A1

公开(公告)日：2019-07-11

申请号：US16354588

申请日：2019-03-15

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

Inventor： Stanley J. Wang ,  Terry McMahon ,  Mohammed S. Shaarawi ,  Donald W. Schulte

IPC: B41J2/045 ,  B41J2/21 ,  B41J2/165 ,  B41J2/14

CPC classification number: B41J2/04541 ,  B41J2/04508 ,  B41J2/0451 ,  B41J2/0455 ,  B41J2/0458 ,  B41J2/14072 ,  B41J2/16517 ,  B41J2/2139

Abstract: A system for isolating a failed resistor in a liquid dispensing system including a fusible links described. The system includes drive circuitry to drive a voltage supply to a resistor. The fusible link is disposed between a field effect transistor (FET) and the resistor. The fusible link is to fuse apart upon failure of the resistor.

公开(公告)号：US10272671B2

公开(公告)日：2019-04-30

申请号：US15747688

申请日：2015-10-08

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

Inventor： Stanley J. Wang ,  Terry McMahon ,  Mohammed S. Shaarawi ,  Donald W. Schulte

IPC: B41J2/14 ,  B41J2/21 ,  B41J2/045 ,  B41J2/165

Abstract: A system for isolating a failed resistor in a liquid dispensing system including a fusible links described. The system includes drive circuitry to drive a voltage supply to a resistor. The fusible link is disposed between a field effect transistor (FET) and the resistor. The fusible link is to fuse apart upon failure of the resistor.

公开(公告)号：US12042858B2

公开(公告)日：2024-07-23

申请号：US17054556

申请日：2019-03-15

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

Inventor： Krzysztof Nauka ,  Vladek Kasperchik ,  Mohammed S. Shaarawi

IPC: B22F1/0545 ,  B22F1/107 ,  B22F10/10 ,  B22F10/14 ,  B22F10/28 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y70/10

CPC classification number: B22F1/0545 ,  B22F1/107 ,  B22F10/10 ,  B22F10/14 ,  B22F10/28 ,  B33Y70/00 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10 ,  B22F2999/00 ,  B22F10/14 ,  B22F12/55 ,  B22F1/0545 ,  B22F1/107

Abstract: Described herein are kits, methods, and systems for printing metal three-dimensional objects. In an example, described is a multi-fluid kit for three-dimensional printing comprising: a first fluid comprising a first liquid vehicle comprising metal or metal precursor particles; and a second fluid comprising a second liquid vehicle comprising latex polymer particles dispersed therein, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm, and wherein the metal or metal precursor particles comprise metal nanoparticles, metal oxide nanoparticles, metal oxide nanoparticles and a reducing agent, or combinations thereof.

公开(公告)号：US12005499B2

公开(公告)日：2024-06-11

申请号：US17637644

申请日：2019-10-15

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

Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  Mackensie C. Smith

IPC: B22F10/14 ,  B22F10/30 ,  B22F10/64 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

CPC classification number: B22F10/14 ,  B22F10/30 ,  B22F10/64 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B22F2203/11 ,  B22F2304/10

Abstract: A three-dimensional printing system can include a particulate build material including metal particles. The three-dimensional printing system can include a binding agent applicator fluidly coupled or coupleable to a binding agent. The three-dimensional printing system can include a suppression agent applicator fluidly coupled or coupleable to a melting point suppression agent, the melting point suppression agent including a dispersion of melting point suppression particles. The three-dimensional printing system can include a hardware controller to generate a command to direct the binding agent applicator to iteratively apply the binding agent to the particulate build material to form individually patterned object layers of a green body object, and direct the suppression agent applicator to iteratively apply the melting point suppression agent to a discrete location of the individually patterned object layers. The discrete location can include a discrete surface region of the green body object.

公开(公告)号：US11753703B2

公开(公告)日：2023-09-12

申请号：US17047467

申请日：2018-10-25

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

Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  James McKinnell

IPC: B33Y10/00 ,  C08K3/11 ,  B33Y70/10 ,  B22F10/14 ,  B22F3/10 ,  B22F1/05 ,  B22F1/10 ,  B22F1/145 ,  B22F1/14 ,  B22F1/052 ,  C22C1/05 ,  B33Y40/20 ,  C08K3/04

CPC classification number: C22C1/05 ,  B22F1/05 ,  B22F1/052 ,  B22F1/10 ,  B22F1/14 ,  B22F1/147 ,  B22F3/1007 ,  B22F3/1021 ,  B22F10/14 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C08K3/04 ,  C08K3/11 ,  B22F2301/35 ,  B22F2302/40 ,  B22F2304/054 ,  B22F2304/056 ,  B22F2304/10 ,  B22F2998/10 ,  B22F1/10 ,  B22F10/14 ,  B22F3/1021 ,  B22F2201/013 ,  B22F2201/03

Abstract: A three-dimensional printing kit can include a binder fluid and a particulate build material. The particulate build material can include metal particles in an amount from about 95 wt % to about 99.995 wt % and carbon black particles in an amount from about 0.005 wt % to about 2 wt %, wherein weight percentages are based on a total weight of the particulate build material.

公开(公告)号：US11534824B2

公开(公告)日：2022-12-27

申请号：US16499572

申请日：2018-04-19

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

Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  James McKinnell ,  Michael G. Monroe ,  Jason Hower

IPC: B22F1/10 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  B22F10/10 ,  C08F2/22 ,  C08F212/08 ,  C08F220/14 ,  C09D11/037 ,  C09D11/322 ,  C09D11/38 ,  B33Y70/00 ,  B29C64/165 ,  B22F10/14 ,  C08K3/11 ,  B22F1/05 ,  B22F1/102 ,  B22F1/16 ,  B22F10/73 ,  B82Y30/00

Abstract: An example of a composition includes a host metal present in an amount ranging from about 95.00 weight percent to about 99.99 weight percent, based on a total weight of the composition. A flow additive is present in an amount ranging from about 0.01 weight percent to about 5.00 weight percent, based on the total weight of the composition. The flow additive consists of a metal containing compound that is reducible to an elemental metal in a reducing environment at a reducing temperature less than or equal to a sintering temperature of the host metal. The elemental metal is capable of being incorporated into a bulk metal phase of the host metal in a final metal object. The composition is spreadable, having a Hausner Ratio less than 1.25.

公开(公告)号：US20210331236A1

公开(公告)日：2021-10-28

申请号：US16605559

申请日：2018-07-18

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

Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  James McKinnell

IPC: B22F1/00 ,  B22F10/10 ,  B22F10/43

Abstract: A three-dimensional printing kit can include a binder fluid, a gas-precursor fluid, and a particulate build material including metal particles. The binder fluid can include latex particles and an aqueous liquid vehicle. The gas-precursor fluid can include carbon black pigment dispersed in a second aqueous liquid vehicle.

公开(公告)号：US20210245247A1

公开(公告)日：2021-08-12

申请号：US17047513

申请日：2018-10-29

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

Inventor： Jason C. Hower ,  Mohammed S. Shaarawi ,  Vladek P. Kasperchik ,  James McKinnell ,  Jennifer L. Wu

IPC: B22F10/47 ,  B22F10/14 ,  B22F1/00 ,  B33Y10/00

Abstract: In an example of a method for three-dimensional printing, a first amount of a binding agent is selectively applied, based on a 3D object model, to individual build material layers of a particulate build material including metal particles to forming an intermediate structure. The binding agent and/or a void-formation agent is selectively applied, based on the 3D object model, to at least one interior layer of the individual build material layers so that a total amount of the binding agent, the void-formation agent, or both the binding agent and the void-formation agent in the at least one of the individual build material layers is greater than the first amount. This patterns an area that is to contain voids. The intermediate structure is heated to form a 3D structure including a void-containing breakable connection.

公开(公告)号：US20210121951A1

公开(公告)日：2021-04-29

申请号：US16604384

申请日：2018-10-10

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

Inventor： Mark H. Kowalski ,  Vladek Kasperchik ,  Mohammed S. Shaarawi

IPC: B22F1/00 ,  B22F10/14 ,  B33Y70/00

Abstract: An example of a kit for three-dimensional (3D) printing includes a host metal and fumed flow additive aggregates to be mixed with the host metal. The fumed flow additive aggregates include flow additive nanoparticles and partially fused necks between at least some of the flow additive nanoparticles. Each of the flow additive nanoparticles consists of a metal containing compound that is reducible to an elemental metal in a reducing environment at a reducing temperature less than or equal to a sintering temperature of the host metal.