Hewlett-packard Development Company, L.p.

Other

Samsung Electronics Co., Ltd.

Peridot Print LLC

Xerox Corporation

Hewlett Packard Enterprise Development LP

Hewlett-packard Development, L.p.

James William Stasiak

Kevin Francis Peters

Pavel Kornilovich

Garry Dale Hinch

Peter Mardilovich

Devin Alexander Mourey

Jan Morovic

Peter Morovic

Charles Santori

Adam L Ghozeil

Paul H McClelland

Sterling Chaffins

Kevin P Dekam

David E Hackleman

Jennifer Wu

Galen H Kawamoto

Peter J Klammer

Richard Stanley Williams

Zhiyong Li

Vladek P Kasperchik

Yong Qin Chen

David A Champion

Timothy L Weber

Mineo Yamakawa

Anita Rogacs

Tony S Cruz-Uribe

Kenneth Ward

Francesco Aieta

Brad Benson

Timothy Dean Strecker

Donald J Coulman

Grant Pease

Herbert Thomas Etheridge, Iii

Andrew L Van Brocklin

Lung T Tran

Scott Alan Elrod

Jurgen Hans Daniel

Randy Hoffman

Shannon Reuben Woodruff

Ali Emamjomeh

Babur B Hadimioglu

Steven A Buhler

James Elmer Abbott, Jr

John Stuart Fitch

Greg Scott Long

Joy Roy

Andrew Koll

Jacob Wright

Guy Adams

Stephan R Clark

Robert Newton Bicknell

Erica Montei Fung

Michael C Weisberg

Robert J Lawton

Cary G Addington

Barry T Phillips

Stanley J Kozmiski

Niranjan Thirukkovalur

Robert Ionescu

Kenneth Flack

Randy K Rannow

Angus Wu

James Charles Zesch

Katrina Donovan

Daniel I Croft

Garry Hinch

Tom Camis

Peter J Frick

Paul H Mcclelland

A multi-fluid kit for three-dimensional printing can include a fusing agent and a nanoparticle-containing agent. The fusing agent can include water and a radiation absorber, where the radiation absorber absorbs radiation energy and converts the radiation energy to heat. The nanoparticle-containing agent can include a liquid vehicle, high density nanoparticles, and a nanoparticle suspension compound selected from the group consisting of terpineol, ethyl cellulose, and a combination thereof.

Three-dimensional printing with high density nanoparticles

The present disclosure relates a method of 3-dimensional printing a printed part. The method comprises printing an inkjet dopant composition at selected locations on a layer of build material comprising polymer particles. The inkjet dopant composition comprises a dopant dispersed or dissolved in a liquid carrier. Polymer particles at selected areas of the layer of build material are then fused to form a fused polymer layer comprising the dopant. The selected areas of the layer of build material include areas of the layer of build material that have not been printed with the inkjet dopant composition.

3-dimensional printing

In an example three-dimensional printing method, individual layers of a metal-based build material are patterned, based on a 3D object model, with a binding agent to form an intermediate structure. A case-hardened portion of a 3D object is also patterned (based on the object model) by selectively depositing a hardening agent to deliver a predetermined concentration of a hardening element to at least one of the individual layers, wherein the individual layers are maintained below a vaporization temperature of the hardening agent during the selectively depositing. The intermediate structure is heated at a first rate to a temperature that aids in diffusion of the hardening element, and is held at the temperature for a predetermined time. The intermediate structure is cooled at a second rate. The intermediate structure, with the patterned case-hardened portion, is then sintered at a sintering temperature of the metal-based build material.

Three-dimensional printing

An example of a three-dimensional (3D) printing kit includes a build material composition and a fusing agent to be applied to at least a portion of the build material composition during 3D printing. The build material composition includes a semi-crystalline thermoplastic polymer having a surface energy density greater than 41 mN/m. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the semi-crystalline thermoplastic polymer in the at least the portion.

A 3-dimensional printed part can include a part body including a first matrix of fusing agent and thermoplastic polymer powder, a security feature including a second matrix of fusing agent, thermoplastic polymer powder, and photoluminescent agent, and a masking feature including a third matrix of fusing agent and thermoplastic polymer powder. The security feature can be positioned beneath and visible through the masking feature upon photoluminescent emission of the security feature.

3-dimensional printed parts

A materials kit for three-dimensional (3D) printing can include a powder bed material including electroactive polymer particles including electroactive polymer having a melting temperature from about 100° C. to about 250° C. and a fusing agent including a radiation absorber to selectively apply to the powder bed material.

A hardening agent for three-dimensional printing includes a boron-containing hardener and a jettable liquid vehicle, and is devoid of a pigment and a dye. The boron-containing hardener is selected from the group consisting of a water dispersible boron-containing hardener present in an amount ranging from about 6 wt % to about 15 wt %, and a water soluble boron-containing hardener present in an amount ranging from greater than 1 wt % to about 20 wt %.

The present disclosure relates to a build composition for a 3-dimensional printing process. The build composition comprises thermoplastic polymer particles, a first photoluminescent agent and a second photoluminescent agent. The build composition has a spectral signature characteristic of the presence of the first photoluminescent agent and the second photoluminescent agent in combination.

Build compositions

The present disclosure is drawn to material sets for 3-dimensional printing, 3-dimensional printing systems, and 3-dimensional printed parts. A material set can include a thermoplastic polymer powder having an average particle size from 20 &#x3bc;m to 100 &#x3bc;m, a photoluminescent ink including a photoluminescent agent, and a fusing ink. The fusing ink can include a fusing agent capable of absorbing electromagnetic radiation to produce heat.

Photoluminescent material sets

Optical readers are disclosed in examples herein. An example optical reader including a light source to emit a light beam; and a spot pattern generator to receive the light beam and to generate a two-dimensional spot array from the light beam, the two-dimensional spot array to be directed toward a substrate having nanostructures, the two-dimensional spot array to be sensed to detect a presence or an absence of a substance of interest on the substrate.

Optical readers

Molecule sensing apparatus. The apparatus has first and second chambers, an input port extending into the first chamber, a fluid channel extending from the first chamber to the second chamber, and a surface-enhanced substrate in the second chamber.

Gas-phase delivery system for molecule sensing apparatus

Examples relate to providing hyperspectral scanning of a surface. In some examples, motion capture data of unobstructed portions of the surface are captured, and spectral data of the surface are captured through a slit assembly and diffraction grating. The motion capture data are processed to determine a movement of a scanning device. At this stage, the spectral data are translated and rotated based on the movement of the scanning device to generate images that each correspond to a different color channel.

Hyperspectral scanning

Growing community of inventors

Lebanon, OR, United States of America

James William Stasiak