公开(公告)号：US11110653B2

公开(公告)日：2021-09-07

申请号：US15763223

申请日：2015-10-23

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

Inventor： Stephen G. Rudisill ,  Alexey S. Kabalnov ,  Keshava A. Prasad ,  Sivapackia Ganapathiappan ,  Jake Wright ,  Vladek Kasperchik

IPC: B29C64/188 ,  B33Y10/00 ,  B29C64/165 ,  B33Y70/00 ,  B29C64/264 ,  B29C64/112 ,  B29K77/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/393

Abstract: In a three-dimensional printing method example, a polymeric or polymeric composite build material is applied. A fusing agent is applied on at least a portion of the build material. The fusing agent includes an aqueous or non-aqueous vehicle and a plasmonic resonance absorber having absorption at wavelengths ranging from 800 nm to 4000 nm and having transparency at wavelengths ranging from 400 nm to 780 nm dispersed in the aqueous or non-aqueous vehicle. The build material is exposed to electromagnetic radiation, thereby fusing the portion of the build material in contact with the fusing agent to form a layer.

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：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：US20190134895A1

公开(公告)日：2019-05-09

申请号：US16095934

申请日：2016-07-20

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik ,  David A. Champion ,  James P. Shields

IPC: B29C64/165 ,  B29C64/40

Abstract: The present disclosure is drawn to material sets, methods and printed articles and container supports. In one example, a material set can include a particulate fusible build material a particulate fusible build material having an average particle size ranging from about 0.01 μm to about 200 μm. The material set can also include a fusing ink including a fusing agent in a first liquid vehicle, wherein the fusing agent fuses the particulate fusible build material when exposed to electromagnetic energy or thermal energy. The material set can also include a binding ink including a binding agent in a second liquid vehicle, wherein the binding agent temporarily binds the particulate fusible build material when exposed to moderate temperatures ranging from ambient to 150° C.

公开(公告)号：US20190030803A1

公开(公告)日：2019-01-31

申请号：US16072144

申请日：2016-05-05

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

Inventor： Krzysztof Nauka ,  Vladek Kasperchik ,  Aja Hartman

IPC: B29C64/188 ,  B29C64/153 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: According to an example, in a method, a radiation source that is to output radiation at a preset energy level onto a surface of a three-dimensional (3D) printed object may be activated. In addition, the radiation source may be deactivated after a predefined period of time sufficient to cause an outer portion of about a predetermined thickness of the surface of the 3D printed object to begin to melt to finish the surface of the 3D printed object.

公开(公告)号：US20180333914A1

公开(公告)日：2018-11-22

申请号：US16051361

申请日：2018-07-31

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

Inventor： Stephen G. Rudisill ,  Vladek Kasperchik ,  Alexey S. Kabalnov ,  Shannon Reuben Woodruff ,  Thomas M. Sabo ,  Jake Wright ,  Hector Lebron ,  Vanessa Verzwyvelt ,  Morgan T. Schramm ,  Matthew A. Shepherd

IPC: B29C64/165 ,  C09D11/322 ,  B29C67/00 ,  B22F1/00 ,  B82B3/00

Abstract: In an example of a three-dimensional printing method, a polymeric build material is applied. A fusing agent is selectively applied on at least a portion of the polymeric build material. The fusing agent includes cesium tungsten oxide nanoparticles, a zwitterionic stabilizer, and an aqueous vehicle. The polymeric build material is exposed to electromagnetic radiation to fuse the portion of the polymeric build material in contact with the fusing agent to form a layer.

公开(公告)号：US20180264753A1

公开(公告)日：2018-09-20

申请号：US15763167

申请日：2016-01-29

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

Inventor： Pavel Kornilovich ,  Vladek Kasperchik ,  Michael G. Monroe

IPC: B29C67/24 ,  B29C64/165 ,  C08K3/013 ,  C08K7/28

Abstract: A three-dimensional (3D) printing composite build material composition includes a polymer particle and an inorganic particle. The polymer particle is an aliphatic polyamide. The inorganic particle has an average particle size ranging from about 1 μm to about 100 μm. A mass ratio of the polymer particle to the inorganic particle in the composite build material composition ranges from about 5:2 to about 1:3.

公开(公告)号：US20180015664A1

公开(公告)日：2018-01-18

申请号：US15547007

申请日：2015-04-27

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

Inventor： Alexey S. Kabalnov ,  Jacob Tyler Wright ,  Vladek Kasperchik

IPC: B29C64/165 ,  B29C64/112 ,  B29C64/291 ,  B33Y10/00 ,  B33Y30/00 ,  B29K77/00

CPC classification number: B29C64/165 ,  B29C64/112 ,  B29C64/291 ,  B29K2077/00 ,  B29K2995/0021 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B41M3/00 ,  B41M5/0088

Abstract: In a 3D printing method example, color is added to a part. A build material is applied, and is pre-heated to a temperature ranging from about 50 C to about 400 C. A black ink, including an infrared absorbing colorant, is selectively applied on at least a portion of the build material. A white ink, including a white colorant that is opaque in visible wavelengths and is transparent to infrared wavelengths, is selectively applied on the black ink. A colored ink, including a colorant having a color other than black or white, is selectively applied on the white ink. The build material and the applied inks are then exposed to infrared radiation. The black ink at least partially fuses the portion of the build material in contact therewith. At least some of the white colorant and the colorant are embedded in the at least partially fused portion at a surface thereof.

公开(公告)号：US12186805B2

公开(公告)日：2025-01-07

申请号：US18104237

申请日：2023-01-31

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

Inventor： Vladek Kasperchik ,  David Michael Ingle ,  Cory J. Ruud

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: Described herein are compositions, methods, and systems for printing metal three-dimensional objects. In an example, described is a method of printing a three-dimensional object comprising: (i) depositing a metal powder build material, wherein the metal powder build material has an average particle size of from about 10 μm to about 250 μm; (ii) selectively applying a binder fluid on at least a portion of the metal powder build material, wherein the binder fluid comprises an aqueous liquid vehicle and latex polymer particles dispersed in the aqueous liquid vehicle; (iii) heating the selectively applied binder fluid on the metal powder build material to a temperature of from about 40° C. to about 180° C.; and (iv) repeating (i), (ii), and (iii) at least one time to form the three-dimensional object.

公开(公告)号：US20240293861A1

公开(公告)日：2024-09-05

申请号：US18575195

申请日：2021-07-09

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

Inventor： David R. Otis, Jr. ,  Vladek Kasperchik ,  Mohammed Shaarawi

IPC: B22F1/14 ,  B22F1/052 ,  B22F1/065 ,  B22F10/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10

CPC classification number: B22F1/14 ,  B22F1/052 ,  B22F1/065 ,  B22F10/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10

Abstract: Methods of preparing a particulate build material for three-dimensional printing can include loading fresh particulate build material including from about 80 wt % to 100 wt % fresh metal particles into a mechanical mixer, and mechanically conditioning the fresh particulate build material to generate conditioned particulate build material including conditioned metal particles. The fresh metal particles can have a surface oxide layer, and the fresh particulate build material can have a particle size distribution with a D10 particle size from about 2 μm to about 10 μm, a D50 particle size from about 5 μm to about 20 μm, and a D90 particle size from about 20 μm to about 40 μm. The conditioned particulate build material can include a modified cohesive index (compared to the fresh conditioned particulate build material) ranging from about 25 cohesive index units to about 35 cohesive index units.