General Electric Company

The State University of New York

Baker Hughes, a Ge Compnay, LLC

Ge Infrastructure Technology, LLC

General Electricity Company

Vadim Bromberg

Kwok Pong Chan

John Thomas Sterle

Carlos H Bonilla

Arunkumar Natarajan

Victor Fulton

Timothy Francis Andrews

Younkoo Jeong

Tyler Andrew Griffith

Jacob Mayer

William Christopher Alberts

Mary Kathryn Thompson

Joseph Lucian Smolenski

Ananda Barua

Peter Douglas Lueschen

Lowell Scott Smith

Douglas Glenn Wildes

Jonathan Matthew Lomas

Sathyanarayanan Raghavan

Glen Charles Fedyk

Ruben Egberto Fairman

Ken Ivcar Salas Nobrega

Joshua Tyler Mook

Xi Yang

Travis Gene Sands

Matthew Harvey Krohn

Hongqiang Chen

Grant Alan Ingram

Siyuan Ma

Liang Liu

Timothy Singler

Radislav Alexandrovich Potyrailo

Srikanth Chandrudu Kottilingam

Kevin George Harding

David Martin Mills

Prabhjot Singh

Warren Lee

Reinhold Bruestle

Alexander Felix Fiseni

Raymond Floyd Martell

Brandon Alan Bartling

Stephen Michael Deak

Jeffrey Jon Schoonover

Nandini Nagraj

William Cosmo Murphy

Carlos Bonilla Gonzalez

Brian Harlow Farrell

Chester Frank Saj

Zhexiong Tang

Rajesh Ramamurthy

Sven Runte

Robert Edgar Estes

Meghan J Borz

Timothy James Fiorillo

Chi Tat Chiu

Tyler Hater

Sara Rostami

Robert Butler

Mihirkumar Pravinbhai Patel

Justin Gandee

Janet Mekker

Srinivas Pendurti

A gas control system including a positive pressure vessel, a negative pressure vessel, a first pressure control valve configured to control a flow of gas to and from a first manifold of a printhead assembly, and a second pressure control valve configured to control a flow of gas to and from a second manifold of the printhead assembly. During a normal positive pressure mode, gas flows from the positive pressure vessel to the first manifold and the second manifold through a respective one of the first pressure control valve and the second pressure control valve. During a positive pressure purge mode, gas from the positive pressure vessel bypasses the first pressure control valve and the second pressure control valve to flow to the first manifold and the second manifold.

Gas control systems for purging a printhead manufacturing apparatus

In various embodiments, a water-based binder solution for use in additive manufacturing, includes a thermoplastic binder. The thermoplastic binder includes a first polymer strand having a weight average molecular weight (Mw) of from greater than or equal to 5,000 g/mol to less than or equal to 15,000 g/mol, a second polymer strand having a weight average molecular weight of from greater than or equal to 10,000 g/mol to less than or equal to 50,000 g/mol, and a third polymer strand having a weight average molecular weight of from greater than or equal to 1,000 g/mol to less than or equal to 5,000 g/mol. The binder solution further comprises from greater than or equal to 0.1 wt % to less than or equal to 5 wt % of a non-aqueous solvent having a boiling point of greater than 100° C.

Water-based binder solutions for use in additive manufacturing processes

Additive manufacturing apparatuses, components of additive manufacturing apparatuses, and methods of using such manufacturing apparatuses and components are disclosed. An additive manufacturing apparatus may include a recoat head for distributing build material in a build area, a print head for depositing material in the build area, one or more actuators for moving the recoat head and the print head relative to the build area, and a cleaning station for cleaning the print head.

Additive manufacturing apparatuses and methods

Embodiments of the present disclosure are directed to additive manufacturing apparatuses, cleaning stations incorporated therein, and methods of cleaning using the cleaning stations.

Fluid management and circulation systems for use in additive manufacturing apparatuses

Cleaning systems for additive manufacturing apparatuses and methods for using the same

A recoat assembly () for an additive manufacturing system includes a base member () that is movable in a lateral direction, a powder spreading member () coupled to the base member (), wherein the base member () at least partially encapsulates the powder spreading member (), and a vacuum () in fluid communication with at least a portion of the base member ().

Additive manufacturing recoat assemblies including a vacuum and methods for using the same

An apparatus includes a printing head () comprising jet nozzles () spaced apart from one another, where a distance from a first jet nozzle to a second jet nozzle positioned adjacent the first jet nozzle defines a jet-spacing, a printing head position control assembly includes a first actuator assembly () to move the printing head along the longitudinal axis and a second actuator assembly () to move the printing head along a latitudinal axis, and an control unit communicatively coupled to the printing head position control assembly. The control unit causes jet nozzles to dispense drops of binder () while the printing head traverses a first pass trajectory along the longitudinal axis in a first direction, indexes the printing head to a second pass trajectory along the latitudinal axis, and causes jet nozzles to dispense drops of binder while the printing head traverses the second pass trajectory along the longitudinal axis in a second direction.

Printing assemblies and methods for using the same

A method of processing a part includes: identifying () a location of at least one hole () disposed in the part using a computer-aided design (CAD) model of the part (); aligning () the part in a mounting system (); 3D-scanning () the part (); detecting () at least one boundary feature of the hole () based at least partially on at least one datum from 3D-scanning () the part; and generating () a first toolpath () based at least partially on the boundary feature.

Automated identification of cooling holes and toolpath generation

Wiper arrays for use in additive manufacturing apparatuses

A method for forming an object includes moving a recoat assembly () in a coating direction over a build material, wherein the recoat assembly () comprises a first roller () and a second roller () that is spaced apart from the first roller; rotating the first roller () of the recoat assembly in a counter-rotation direction, such that a bottom of the first roller moves in the coating direction; contacting the build material with the first roller of the recoat assembly, thereby fluidizing at least a portion of the build material; irradiating, with a front energy source () coupled to a front end of the recoat assembly, an initial layer of build material positioned in a build area; subsequent to irradiating the initial layer of build material, spreading the build material on the build area with the first roller, thereby depositing a second layer of the build material over the initial layer of build material; and subsequent to spreading the second layer of the build material, irradiating, with a rear energy source () positioned rearward of the front energy source, the second layer of build material within the build area.

Recoat assemblies for additive manufacturing systems and methods for using the same

Cleaning fluids for use in additive manufacturing apparatuses and methods for monitoring status and performance of the same

Additive manufacturing apparatuses are disclosed. In one embodiment, an additive manufacturing apparatus may comprise a support chassis including a print bay, a build bay, and a material supply bay. Each bay may comprise an upper compartment and a lower compartment. A working surface may separate each of the print bay, the build bay, and the material supply bay into the upper compartment and the lower compartment, wherein: the build bay may be disposed between the print bay and the material supply bay. The lower compartment of the build bay comprises bulkheads sealing the lower compartment of the build bay from the lower compartment of the print bay and the lower compartment of the material supply bay.

Additive manufacturing apparatuses and methods for using the same

A recoat assembly for an additive manufacturing system includes a first roller support, a second roller support, a first roller disposed between and supported by the first roller support and the second roller support, a first rotational actuator operably coupled to the first roller and configured to rotate the first roller about a first rotation axis, and a first sensor mechanically coupled to and in contact with the first roller support, where the first sensor outputs a first output signal indicative of a first force incident upon the first roller.

Additive manufacturing recoat assemblies including sensors and methods for using the same

Growing community of inventors

Schenectady, NY, United States of America

Vadim Bromberg