公开(公告)号：US20180099333A1

公开(公告)日：2018-04-12

申请号：US15290067

申请日：2016-10-11

Applicant: General Electric Company

Inventor： Ehsan DehghanNiri ,  Christopher Joseph Lochner ,  Kevin Luo

IPC: B22F3/105 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B28B1/001 ,  B29C64/153 ,  B29C64/20 ,  B29C64/386 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method for inspection of 3D manufactured parts or structures or process control of a 3D manufacturing apparatus is provided. The method includes obtaining, in real-time during a 3D manufacturing build process in which at least one structure is built by the 3D manufacturing apparatus, a topographical scan of an area of a build platform on which the at least one structure is built. An evaluating step evaluates, by a processor, the topographical scan to determine a powder depth and/or a layer depth after powder redistribution. A determining step determines based on the evaluating, whether the powder depth or the layer depth is either inside or outside a predetermined range. A modifying step modifies, based on the determining, an operational characteristic of the 3D manufacturing apparatus. The topographical scan is obtained by a laser scan, a blue light scan, a confocal scan or a multifocal plane microscopy scan.

公开(公告)号：US09879981B1

公开(公告)日：2018-01-30

申请号：US15367419

申请日：2016-12-02

Applicant: General Electric Company

Inventor： Ehsan Dehghan Niri ,  Thomas James Batzinger ,  Gregory Lee Hovis ,  Kevin Luo ,  Christopher Joseph Lochner

IPC: G01N3/00 ,  G01B11/16 ,  G01M15/14 ,  G01M5/00

CPC classification number: G01B11/16 ,  F05B2270/808 ,  G01M5/00 ,  G01M5/0016 ,  G01M5/0041 ,  G01M5/0091 ,  G01M15/14

Abstract: A system and related methods for evaluating a component using a reference feature and a replicate of the reference feature. The component has an exterior surface with a reference feature thereon. The method includes determining an initial condition of the reference feature, subjecting the component to at least one duty cycle after determining the initial condition, determining a subsequent condition of the reference feature after the at least one duty cycle while the component is in a service position, and forming a replicate of the reference feature while the reference feature is in one of the initial condition or the subsequent condition. One of the initial condition or the subsequent condition may be determined based on the replicate of the reference feature.