公开(公告)号：US20190099807A1

公开(公告)日：2019-04-04

申请号：US15722525

申请日：2017-10-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Lucas Christian JONES ,  Jonathan ORTNER ,  John MOORES ,  Patrick KENNEY

IPC: B22F3/105 ,  B28B1/00 ,  B05D3/06 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  C23C16/44

Abstract: The present disclosure generally relates to methods and apparatuses for additive manufacturing with improved powder distribution capabilities. Specifically, the methods and apparatuses of the present disclosure incorporate powder distribution vanes to improve the lateral deposition of powder from a hopper. Such methods and apparatuses have the potential to reduce powder overhead costs, mitigate associated health and environmental risks, and increase manufacturing efficiency.

公开(公告)号：US20180345371A1

公开(公告)日：2018-12-06

申请号：US15610177

申请日：2017-05-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Justin MAMRAK ,  Jonathan ORTNER ,  MacKenzie Ryan REDDING

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00

Abstract: An apparatus for powder-based additive manufacturing is described. The build unit(s) of the apparatus includes a powder delivery mechanism, a powder recoating mechanism and an irradiation beam directing mechanism. The build unit is attached to a positioning mechanism that provides the build unit with independent movements in at least two dimensions. The build platform of the apparatus is rotating and preferably vertically stationary. Embodiments of the build unit that further includes a gas-flow mechanism and the build platform having a dynamically grown wall are also described. An additive manufacturing method using the apparatus involves rotating the build platform and repetitive cycles of moving the build unit(s) in a radial direction to deposit at least one layer of powder, and irradiating a selected portion of the powder to form a fused additive layer.