Hewlett-Packard Development Company, L.p.

Oregon State University

Other

Hewlett Packard Enterprise Development LP

Crown Electrokinetics Corp.

James Elmer Abbott, Jr

David A Champion

Greg Scott Long

Vladek P Kasperchik

Roberto A Pugliese

Peter Mardilovich

Michael A Delos-Reyes

Lihua Zhao

Douglas A Keszler

Zhizhang Chen

Palitha Wickramanayake

John F Wager, Iii

Cassady Sparks Roop

Timothy Koch

John M McGlone

Kristopher Olsen

Chien-Hua Chen

Alexander N Govyadinov

Hou Tee Ng

Sivapackia Ganapathiappan

Zhiyong Li

Krzysztof Nauka

Randy Hoffman

Howard S Tom

Raymond J Adamic

James P Shields

Yan Zhao

Fernando Juan

Stephen Horvath

Chris Paul Schodin

Christopher Shelton

Steven J Simske

Michael W Cumbie

Ning Ge

Gary A Gibson

James William Stasiak

Alfred I-Tsung Pan

Devin Alexander Mourey

Mohammed Saad Shaarawi

Paul J Benning

Arun K Agarwal

Jeffrey R Pollard

Sadiq Bengali

Satya Prakash

Graeme Scott

Brady J Gibbons

Vittorio Scardaci

Bryan Alexander Maack

Stephen F Bylund

John L Williams

William F Stickle

Samuel Ajayi

Joshua Flynn

In one example, a non-transitory processor readable medium having instructions thereon that when executed cause an additive manufacturing machine to expose build material to a light source emitting monochromatic light within a band of wavelengths that includes a peak light absorption of a liquid coalescing agent to be dispensed on to the build material.

Lighting for additive manufacturing

In example implementations, a method for extracting layers of build material into a carrier. The method includes providing a layer of build material onto a bed. Portions of the layer of build material on the bed are digitally printed with a liquid functional material (LFM). The method repeats providing the layer of build material and digitally printing without applying energy to the LFM to define a structure in layers of build material on the bed. The layers of build material are extracted into a carrier and the carrier is removed.

Extraction of digitally printed build material

In example implementations, an apparatus includes a housing, a movable base, a tab portion and a coupling mechanism. The housing is comprised of a microwave transparent material. The movable base is coupled to the housing to receive build material that is digitally printed. The tab portion is coupled to a bottom portion of at least one wall of the housing. The tab portion stops the movable base. The coupling mechanism is coupled to the housing to removably attach the apparatus to a three dimensional printer.

Removable cassette for 3D printers

Embossing resins, methods of manufacturing such resins, and electrokinetic display system, which includes display cells containing such resins. The resins include a fluoropolymer in weight percentage 5%-60%, a difunctional diluent in weight percentage 0-30%, a monofunctional diluent in weight percentage 0-40%, a urethane diacrylate or functionalized nanoscale material, e.g., a functionalized urethane material, in weight percentage 5-50%, a photoinitiator in weight percentage 0.5-5%, and a surfactant in weight percentage less than 0.5%. The difunctional diluent may be Hexanediol Diacrylate, and the monofunctional diluent may be a monofunctional hydrocarbon. The resins are made by identifying a target index of refraction for a cured state thereof, and combining together, by weight percentage, the constituent components to produce the liquid state version of the embossing resin having a desired composite index of refraction.

Refractive index matched resin for electrophoretic displays and other applications

In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A detailing agent fluid is applied to a portion of the ceramic build material. The detailing agent fluid includes a cationic polymer. A liquid functional material, including an anionically stabilized susceptor material, is applied to another portion of the ceramic build material that is in contact with the portion of the ceramic build material having the detailing agent fluid thereon, such that at least some of the anionically stabilized susceptor material reacts with at least some of the cationic polymer that is in contact therewith to prevent spreading of the anionically stabilized susceptor material.

Three-dimensional (3D) printing with a detailing agent fluid and a liquid functional material

In one example, a lighting device for an additive manufacturing machine includes an array of light sources each to emit monochromatic light within a band of wavelengths that includes a peak light absorption of a liquid coalescing agent to be dispensed on to a build material.

An electrokinetic device is configured as a dynamic lens cover and/or filter for an imaging assembly, e.g., of a mobile device, to selectively allow electromagnetic radiation to pass through a lens of the imaging assembly when the dynamic lens cover is in a first operating state or to prevent electromagnetic radiation from reaching the lens of the imaging assembly when the dynamic lens cover is in a second operating state. The electrokinetic device includes transparent first and second substrates, and a compaction trench surrounding the lens of the imaging assembly. The compaction trench stores pigment when the dynamic lens cover is in the first operating state. In the second operating state pigment is dispersed within a carrier fluid between the first and second substrates.

Applications of an electrokinetic device for an imaging system

An amorphous thin metal film can comprise a combination of three metals or metalloids including: 5 at % to 90 at % of a metalloid selected from the group of carbon, silicon, and boron; 5 at % to 90 at % of a first metal selected from the group of titanium, vanadium, chromium, iron, cobalt, nickel, zirconium, niobium, molybdenum, ruthenium, rhodium, palladium, hafnium, tantalum, tungsten, osmium, iridium, and platinum; and 1 at % to 90 at % of cerium. The three elements may account for at least 50 at % of the amorphous thin metal film.

Amorphous thin metal film

A method for additive manufacturing includes: forming a three-dimensional object by: depositing a layer of a powdered build material onto a surface; selectively depositing a liquid comprising a susceptor onto the layer of the powdered build material in a pattern; and heating the object by electromagnetic radiation with a microwave or radio wave frequency, in an atmosphere including oxygen, to a temperature sufficient to sinter the powdered build material.

Additive manufacturing in an atmosphere including oxygen

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 &#x3bc;m to about 200 &#x3bc;m. 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&#xb0; C.

Material sets

In a three-dimensional printing method example, a build material is applied. A first liquid functional material is applied on at least a portion of the build material. The first liquid functional material includes ferromagnetic nanoparticles that are selected from the group consisting of an iron oxide, a ferrite, a combination of the iron oxide and a ferromagnetic metal oxide, and combinations thereof. The build material is exposed to electromagnetic radiation having a frequency ranging from about 5 kHz to about 300 GHz to sinter the portion of the build material in contact with the first liquid functional material.

Three-dimensional (3D) printing

In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A liquid functional material, including an anionically stabilized susceptor material, is applied to at least a portion of the ceramic build material. A sintering aid/fixer fluid, including a cationically stabilized amphoteric alumina particulate material, is applied to the at least the portion of the ceramic build material. The applied anionically stabilized susceptor material and the applied cationically stabilized amphoteric alumina particulate material react to immobilize the anionically stabilized susceptor material, thereby patterning the at least the portion of the ceramic build material.

Three-dimensional (3D) printing with a sintering aid/fixer fluid and a liquid functional material

In a 3D printing method, a first layer of a build material is applied. A part layer is patterned by selectively applying a penetrating liquid functional material (PLFM) on at least a portion of the first layer. The PLFM includes (in amounts by weight based on total wt % of the PLFM): from about 5%-15% of a first metal oxide nanoparticle having a particle size ranging from about 0.5 nm up to 10 nm, from about 0.25%-10% of a second metal oxide nanoparticle having at least one dimension greater than 10 nm, from about 1%-10% of an electromagnetic radiation absorber, from about 5%-50% of an organic solvent, a surfactant, and a balance of water. The first layer having the PLFM applied thereon is exposed to electromagnetic radiation, whereby the portion of the first layer at least partially fuses to form the part layer.

The present disclosure is drawn to a particulate build material for three-dimensional printing. The particulate build material can include a plurality of particulates, wherein individual particulates include a particulate core having a photosensitive coating applied to a surface of the particulate core. The particulate core includes a metal, a ceramic, or both a metal and a ceramic. The photosensitive coating includes a polymer having a photosensitive agent suspended or attached therein.

Particulate build material

Growing community of inventors

Albany, OR, United States of America

James Elmer Abbott, Jr