Title:
移動式走査エリアを使用する付加製造
Document Type and Number:
Japanese Patent JP6848069
Kind Code:
B2
Abstract:
The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.
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Inventors:
Reading, Mackenzie, Ryan
Fieldman, Zachary, David
Mamrak, Justin
Fieldman, Zachary, David
Mamrak, Justin
Application Number:
JP2019538150A
Publication Date:
March 24, 2021
Filing Date:
January 03, 2018
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
B29C64/153; B29C64/268; B29C64/364; B33Y10/00; B33Y30/00
Domestic Patent References:
| JP2014125643A | ||||
| JP2016528374A |
Foreign References:
| US20160151833 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Kato Kazunori