Multi-directional binder jetting additive manufacturing

US11623389B2 · kind B2 · utility

Assignee

• Desktop Metal, Inc. · US

Inventors

• Jonah Samuel Myerberg · Lexington, US
• Ricardo Fulop · Lexington, US
• Brett Schuster · Hollis, US
• Emanuel M. Sachs · Newton, US
• Paul A. Hoisington · Hanover, US
• Anastasios John Hart · Newton, US
• Keith Vaillancourt · Hudson, US
• Steven Garrant · Mont Vernon, US
• George Hudelson · Billerica, US

Key dates

• Filing date: Apr 20, 2018
• Grant date: Apr 11, 2023
• Expiry date: Apr 20, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The devices, systems, and methods of the present disclosure are directed to powder spreading and binder distribution techniques for consistent and rapid layer-by-layer fabrication of three-dimensional objects formed through binder jetting. For example, a powder may be spread to form a layer along a volume defined by a powder box, a binder may be deposited along the layer to form a layer of a three-dimensional object, and the direction of spreading the layer and depositing the binder may be in a first direction and in a second direction, different from the first direction, thus facilitating rapid formation of the three-dimensional object with each passage of the print carriage over the volume. Powder delivery, powder spreading, thermal energy delivery, and combinations thereof, may facilitate consistently achieving quality standards as the rate of fabrication of the three-dimensional object is increased.