公开(公告)号：US20210237157A1

公开(公告)日：2021-08-05

申请号：US17047521

申请日：2018-10-23

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

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

IPC: B22F10/14 ,  C08K3/11 ,  B22F1/00 ,  B22F3/10 ,  B22F12/43 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10

Abstract: A three-dimensional printing kit can include a binder fluid and a particulate build material. The particulate build material can include from about 80 wt % to 100 wt % metal particles that can have a D50 particle size distribution from about 1 μm to about 150 μm, wherein the metal particles of the particulate build material can include surface-irradiated metal particles, and wherein the particulate build material can exhibit a water contact angle from 0° to about 25°.

公开(公告)号：US20210146440A1

公开(公告)日：2021-05-20

申请号：US16605247

申请日：2018-05-10

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

Inventor： Mohammed S. Shaarawi ,  James McKinnell ,  David A. Champion ,  Vladek P. Kasperchik

IPC: B22F10/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/85 ,  B29C64/165 ,  B29C64/393 ,  B33Y70/10

Abstract: An apparatus is disclosed to create a breakaway junction for 3D printed parts. Powder is spread along a target zone, such as a build bed. A liquid functional agent is selectively dispensed upon the powder to form a 3D object, a supporting part, and the breakaway junction between them.

公开(公告)号：US20210001546A1

公开(公告)日：2021-01-07

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: B29C64/165 ,  B22F1/00 ,  B33Y70/00 ,  B33Y10/00

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：US12214421B2

公开(公告)日：2025-02-04

申请号：US17838050

申请日：2022-06-10

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

Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  Michael G. Monroe ,  David Michael Ingle

IPC: B22F10/14 ,  B22F1/05 ,  B22F1/10 ,  B22F3/10 ,  B22F10/10 ,  B22F10/16 ,  B22F10/32 ,  B22F10/34 ,  B22F10/50 ,  B22F12/10 ,  B29C64/165 ,  B29C64/209 ,  B29C64/295 ,  B29C64/371 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y70/10 ,  C08L13/02 ,  C22C1/04 ,  B22F1/103 ,  B22F5/08 ,  B22F12/53 ,  B22F12/63 ,  C08K5/053

Abstract: In a three-dimensional (3D) printing method example, a metallic build material is applied. A binder fluid is selectively applied on at least a portion of the metallic build material. The binder fluid includes a liquid vehicle and polymer particles dispersed in the liquid vehicle. The application of the metallic build material and the selective application of the binder fluid are repeated to create a patterned green part. The patterned green part is heated to at about a melting point of the polymer particles to activate the binder fluid and create a cured green part. The cured green part is heated to a thermal decomposition temperature of the polymer particles to create an at least substantially polymer-free gray part. The at least substantially polymer-free gray part is heated to a sintering temperature to form a metallic part.

公开(公告)号：US12121973B2

公开(公告)日：2024-10-22

申请号：US18125042

申请日：2023-03-22

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

Inventor： Mohammed S. Shaarawi ,  James McKinnell ,  Vladek Kasperchik ,  David A. Champion ,  Greg Scott Long

IPC: B22F12/63 ,  B22F1/10 ,  B22F1/107 ,  B22F9/04 ,  B22F10/14 ,  B22F10/20 ,  B22F10/64 ,  B29C64/165 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/20 ,  B33Y70/00 ,  B22F10/28 ,  B22F10/32 ,  B22F10/50 ,  B22F12/52 ,  B22F12/67 ,  B33Y70/10

CPC classification number: B22F9/04 ,  B22F1/10 ,  B22F1/107 ,  B22F10/14 ,  B22F10/20 ,  B22F10/64 ,  B29C64/165 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/20 ,  B33Y70/00 ,  B22F2009/041 ,  B22F10/28 ,  B22F10/32 ,  B22F10/50 ,  B22F12/52 ,  B22F12/63 ,  B22F12/67 ,  B33Y70/10

Abstract: In a three-dimensional printing method example, a liquid functional agent is selectively applied. The liquid functional agent includes an alloying agent. A metallic build material is applied. The liquid functional agent is selectively applied before the metallic build material, after the metallic build material, or both before and after the metallic build material. The liquid functional agent patterns the metallic build material to form a composite layer. At least some of the metallic build material is exposed to energy to melt the at least some of the metallic build material to form a layer. Upon contact or after energy exposure, the alloying agent and the build material alter a composition of the composite layer.

公开(公告)号：US20240246147A1

公开(公告)日：2024-07-25

申请号：US18628434

申请日：2024-04-05

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

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

IPC: B22F10/14 ,  B22F1/107 ,  B22F10/47 ,  B33Y10/00

CPC classification number: B22F10/14 ,  B22F1/107 ,  B22F10/47 ,  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：US12042860B2

公开(公告)日：2024-07-23

申请号：US18199945

申请日：2023-05-20

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

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

IPC: B22F1/10 ,  B22F1/05 ,  B22F1/102 ,  B22F1/16 ,  B22F10/10 ,  B22F10/14 ,  B22F10/73 ,  B29C64/165 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  C08F2/22 ,  C08F212/08 ,  C08F220/14 ,  C08K3/11 ,  C09D11/037 ,  C09D11/322 ,  C09D11/38 ,  B22F10/28 ,  B82Y30/00

CPC classification number: B22F1/10 ,  B22F1/05 ,  B22F1/102 ,  B22F1/16 ,  B22F10/10 ,  B22F10/14 ,  B22F10/73 ,  B29C64/165 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  C08F2/22 ,  C08F212/08 ,  C08F220/14 ,  C08K3/11 ,  C09D11/037 ,  C09D11/322 ,  C09D11/38 ,  B22F10/28 ,  B22F2304/10 ,  B22F2998/10 ,  B82Y30/00 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/1021 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/10

Abstract: An example of a method for making a build material composition for three-dimensional (3D) printing includes freezing a dispersion of flow additive nanoparticles in a liquid to form a frozen liquid containing the flow additive nanoparticles. The frozen liquid containing the flow additive nanoparticles is lyophilized to form flow additive agglomerates having a porous, fractal structure. The flow additive agglomerates are mixed with a host metal. The flow additive nanoparticles have an average flow additive particle size ranging from about 1 to about 3 orders of magnitude smaller than an average host metal particle size of the host metal.

公开(公告)号：US20230294172A1

公开(公告)日：2023-09-21

申请号：US18199945

申请日：2023-05-20

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

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

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

CPC classification number: B22F10/73 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  C08F2/22 ,  C08F212/08 ,  C08F220/14 ,  C09D11/037 ,  C09D11/322 ,  C09D11/38 ,  B29C64/165 ,  B22F10/14 ,  C08K3/11 ,  B22F1/10 ,  B22F1/05 ,  B22F1/102 ,  B22F1/16 ,  B22F10/10 ,  B22F2304/10 ,  B22F2998/10 ,  B82Y30/00

Abstract: An example of a method for making a build material composition for three-dimensional (3D) printing includes freezing a dispersion of flow additive nanoparticles in a liquid to form a frozen liquid containing the flow additive nanoparticles. The frozen liquid containing the flow additive nanoparticles is lyophilized to form flow additive agglomerates having a porous, fractal structure. The flow additive agglomerates are mixed with a host metal. The flow additive nanoparticles have an average flow additive particle size ranging from about 1 to about 3 orders of magnitude smaller than an average host metal particle size of the host metal.

公开(公告)号：US11633782B2

公开(公告)日：2023-04-25

申请号：US16073173

申请日：2016-04-19

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

Inventor： Mohammed S. Shaarawi ,  James McKinnell ,  Vladek Kasperchik ,  David A. Champion ,  Greg Scott Long

IPC: B22F3/105 ,  B22F1/107 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/165 ,  B33Y40/00 ,  B29C67/00 ,  B22F10/20 ,  B22F10/50 ,  B22F10/28 ,  B22F10/32 ,  B22F9/04 ,  B33Y70/10

Abstract: In a three-dimensional printing method example, a liquid functional agent is selectively applied. The liquid functional agent includes an alloying agent. A metallic build material is applied. The liquid functional agent is selectively applied before the metallic build material, after the metallic build material, or both before and after the metallic build material. The liquid functional agent patterns the metallic build material to form a composite layer. At least some of the metallic build material is exposed to energy to melt the at least some of the metallic build material to form a layer. Upon contact or after energy exposure, the alloying agent and the build material alter a composition of the composite layer.

公开(公告)号：US11318669B2

公开(公告)日：2022-05-03

申请号：US15763172

申请日：2016-01-29

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

Inventor： Mohammed S. Shaarawi ,  Vladek Kasperchik ,  James McKinnell ,  David A. Champion

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y30/00 ,  B28B1/00 ,  C04B35/111 ,  C04B35/46 ,  C04B35/486 ,  C04B35/491 ,  C04B35/447 ,  C04B35/26 ,  C04B35/56 ,  C04B35/14 ,  C04B35/468 ,  C04B35/636 ,  C04B35/565 ,  C04B35/632 ,  C04B35/584 ,  B22F10/10 ,  B33Y50/02 ,  B29C64/20 ,  B29C64/393 ,  B29K505/00 ,  B29K509/02

Abstract: In a three-dimensional printing method example, a liquid functional agent is selectively applied. The liquid functional agent includes i) an energy source material or ii) an energy sink material. A metallic or ceramic build material is applied. The liquid functional agent is selectively applied any of before the metallic or ceramic build material, after the metallic or ceramic build material, or both before and after the metallic or ceramic build material. The liquid functional agent patterns the metallic or ceramic build material to form a composite layer. At least some of the metallic or ceramic build material is exposed to energy. A reaction involving i) the energy source material or ii) the energy sink material is initiated to alter a thermal condition of the composite layer.