公开(公告)号：US10518356B2

公开(公告)日：2019-12-31

申请号：US15888815

申请日：2018-02-05

Applicant: General Electric Company

Inventor： Michael Evans Graham ,  Lang Yuan ,  Thomas Adcock ,  Justin Gambone, Jr. ,  James Sears ,  John Madelone

IPC: B33Y50/02 ,  G05B19/4099 ,  B23K26/08 ,  B23K26/354 ,  B23K26/082 ,  B23K26/34 ,  G06F17/50

Abstract: A method includes applying thermal and/or strain modeling to the CAD representation of an object. In addition, scan path data is generated based at least in part on a result of the thermal and/or strain modeling. A build file comprising the scan path data is generated. The build file comprises instructions that configure an additive manufacturing tool to generate the object according to the scan path data.

公开(公告)号：US10695865B2

公开(公告)日：2020-06-30

申请号：US15449536

申请日：2017-03-03

Applicant: General Electric Company

Inventor： Michael Evans Graham ,  Lang Yuan

IPC: B23K26/02 ,  B23K26/08 ,  B23K26/34 ,  B23K26/342 ,  B23K26/06 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/082 ,  B29C64/393 ,  B29C64/268 ,  B23K26/00 ,  B22F3/105 ,  B23K26/03

Abstract: A controller for use in an additive manufacturing system including at least one laser device configured to generate at least one melt pool in powdered material including a processing device and a memory device. The controller is configured to generate at least one control signal to control a power output of the at least one laser device throughout at least one scan path across the layer of powdered material, the scan path generated at least partially based on a functional relationship between a plurality of points of a generating path and each point of a plurality of points of the scan path. The controller is further configured to generate a non-uniform energy intensity profile for the scan path, and transmit the control signal to the laser device to emit at least one laser beam to generate at least one melt pool.

公开(公告)号：US10532556B2

公开(公告)日：2020-01-14

申请号：US15014713

申请日：2016-02-03

Applicant: General Electric Company

Inventor： William Thomas Carter ,  Marshall Gordon Jones ,  Lang Yuan ,  Ning Zhou ,  Steven Jude Duclos

IPC: B33Y80/00 ,  B23K26/00 ,  B23P6/00 ,  B33Y10/00 ,  B22F3/105 ,  B22F5/00 ,  B23K26/06 ,  B23K26/073 ,  B28B1/00 ,  B29C73/00 ,  B23K26/34 ,  B29C73/34 ,  B33Y30/00 ,  F01D5/00 ,  B22F5/04 ,  C30B11/00 ,  C30B13/06 ,  C30B13/24 ,  C30B13/30 ,  C30B13/32 ,  C30B29/52 ,  B29C64/153 ,  B29C64/20 ,  G02B6/42 ,  B29K105/00 ,  B29L31/08 ,  B23K101/00 ,  B23K103/18

Abstract: A method of method of forming or repairing a superalloy article having a columnar or equiaxed or directionally solidified or amorphous or single crystal microstructure includes emitting a plurality of laser beams from selected fibers of a diode laser fiber array corresponding to a pattern of a layer of the article onto a powder bed of the superalloy to form a melt pool; and controlling a temperature gradient and a solidification velocity of the melt pool to form the columnar or single crystal microstructure.

公开(公告)号：US20190232428A1

公开(公告)日：2019-08-01

申请号：US15881147

申请日：2018-01-26

Applicant: General Electric Company

Inventor： Subhrajit Roychowdhury ,  Matthias Hoebel ,  Lang Yuan ,  Prabhjot Singh ,  Michael Evans Graham ,  Robert John Filkins ,  Thomas Etter ,  Felix Martin Gerhard Roerig

IPC: B23K26/342 ,  B23K26/02 ,  B23K26/06 ,  B23K26/064 ,  B23K26/082 ,  B23K26/08

Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device is configured to simultaneously modulate the intensity of the laser beam to thermally control the melt pool.

公开(公告)号：US20180236603A1

公开(公告)日：2018-08-23

申请号：US15438326

申请日：2017-02-21

Applicant: General Electric Company

Inventor： William Thomas Carter ,  Justin John Gambone, JR. ,  Lang Yuan ,  David Charles Bogdan, JR. ,  Marshall Gordon Jones

IPC: B23K26/142 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/342 ,  B23K26/16

Abstract: An additive manufacturing system including a housing configured to contain a powder bed of material, and an array of laser emitters having a field of view. The array is configured to melt at least a portion of the powder bed within the field of view as the array translates relative to the powder bed. The system further includes a spatter collection device including a diffuser configured to discharge a stream of gas across the powder bed, and a collector configured to receive the stream of gas and contaminants entrained in the stream of gas. The collector is spaced from the diffuser such that a collection zone is defined therebetween, and the spatter collection device is configured to translate relative to the powder bed such that the collection zone overlaps with the field of view of the array.

公开(公告)号：US20180200963A1

公开(公告)日：2018-07-19

申请号：US15408843

申请日：2017-01-18

Applicant: General Electric Company

Inventor： David Charles Bogdan, JR. ,  Jason Harris Karp ,  Justin John Gambone, JR. ,  Lang Yuan ,  Jinjie Shi ,  Victor Petrovich Ostroverkhov ,  Marshall Gordon Jones ,  William Thomas Carter ,  Harry Kirk Mathews, JR. ,  Kevin George Harding

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y30/00

Abstract: An additive manufacturing system is configured to manufacture a component. The additive manufacturing system includes a laser device, a build platform, a first scanning device, and an air knife. The laser device is configured to generate a laser beam. The component is disposed on the build platform. The air knife is configured to channel an inert gas across the build platform. The first scanning device is configured to selectively direct the laser beam across the build platform. The laser beam is configured to generate successive layers of a melted powdered build material on the component and the build platform. The build platform is configured to rotate the component relative to the air knife.