公开(公告)号：US20200272128A1

公开(公告)日：2020-08-27

申请号：US16287192

申请日：2019-02-27

Applicant: General Electric Company

Inventor： Subhrajit ROYCHOWDHURY ,  Vipul Kumar GUPTA ,  Randal T RAUSCH ,  Justin John GAMBONE ,  Xiaohu PING ,  Alexander CHEN ,  John Erik HERSHEY

IPC: G05B19/4099 ,  G05B13/02 ,  B33Y50/02

Abstract: According to some embodiments, system and methods are provided comprising receiving, via a communication interface of a platform comprising a segmentation module and a processor, a defined geometry for one or more geometric structures forming one or more parts, wherein the parts are manufactured with an additive manufacturing machine; generating a build file including an initial parameter set to fabricate each part; fabricating the part based on the build file; receiving sensor data for the fabricated part; generating a parameter set for each layer that forms the part, via execution of an iterative learning control process for each layer; generating raw power data for each layer that forms the part, using the processor, based on the generated parameter set; applying a noise reduction process to the raw power data; and generating a segmented build file, using the segmentation module, via application of the noise reduction process on the raw power data. Numerous other aspects are provided.

公开(公告)号：US20200242495A1

公开(公告)日：2020-07-30

申请号：US16257348

申请日：2019-01-25

Applicant: General Electric Company

Inventor： Subhrajit ROYCHOWDHURY ,  Alexander CHEN ,  Xiaohu PING ,  Justin GAMBONE, JR. ,  Thomas CITRINITI ,  Brian BARR

IPC: G06N7/00 ,  G06N20/00 ,  G06F17/50 ,  B22F3/105

Abstract: Providing updated build parameters to an additive manufacturing machine to improve quality of a part manufactured by the machine. Sensor data is received from the additive manufacturing machine during manufacture of the part using a first set of build parameters. The first set of build parameters is received. An evaluation parameter is determined based on the first set of build parameters and the received sensor data. Thermal data is generated based on a thermal model of the part derived from the first set of build parameters. A first algorithm is applied to the received sensor data, the determined evaluation parameter, and the generated thermal data to produce a second set of build parameters, the first algorithm being trained to improve the evaluation parameter. The second set of build parameters is output to the additive manufacturing machine to produce a second part.

公开(公告)号：US20200218628A1

公开(公告)日：2020-07-09

申请号：US16242194

申请日：2019-01-08

Applicant: General Electric Company

Inventor： Harry Kirk MATHEWS, JR. ,  Sarah FELIX ,  Subhrajit ROYCHOWDHURY ,  Saikat RAY MAJUMDER ,  Thomas SPEARS

IPC: G06F11/34 ,  G06F17/18 ,  B29C64/393 ,  G06F17/50

Abstract: Generating fault indications for an additive manufacturing machine based on a comparison of the outputs of multiple process models to measured sensor data. The method receiving sensor data from the additive manufacturing machine during manufacture of at least one part. Models are selected from a model database, each model generating expected sensor values for a defined condition. Difference values are computed between the received sensor data and an output of each of the models. A probability density function is computed, which defines, for each of the models, a likelihood that a given difference value corresponds to each respective model. A probabilistic rule is applied to determine, for each of the models, a probability that the corresponding model output matches the received sensor data. An indicator is output of a defined condition corresponding to a model having the highest match probability.

公开(公告)号：US20230029806A1

公开(公告)日：2023-02-02

申请号：US17967391

申请日：2022-10-17

Applicant: General Electric Company

Inventor： Vipul Kumar GUPTA ,  Natarajan CHENNIMALAI KUMAR ,  Anthony Joseph VINCIQUERRA ,  Laura Cerully DIAL ,  Voramon Supatarawanich DHEERADHADA ,  Timothy HANLON ,  Lembit SALASOO ,  Xiaohu PING ,  Subhrajit ROYCHOWDHURY ,  Justin John GAMBONE

IPC: B29C64/393 ,  B22F10/20 ,  B29C64/153 ,  B22F10/30 ,  B22F3/24 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y40/00

Abstract: According to some embodiments, system and methods are provided comprising receiving, via a communication interface of a parameter development module comprising a processor, a defined geometry for one or more parts, wherein the parts are manufactured with an additive manufacturing machine, and wherein a stack is formed from one or more parts; fabricating the one or more parts with the additive manufacturing machine based on a first parameter set; collecting in-situ monitoring data from one or more in-situ monitoring systems of the additive manufacturing machine for one or more parts; determining whether each stack should receive an additional part based on an analysis of the collected in-situ monitoring data; and fabricating each additional part based on the determination the stack should receive the additional part. Numerous other aspects are provided.

公开(公告)号：US20210031302A1

公开(公告)日：2021-02-04

申请号：US16527432

申请日：2019-07-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Christina Margaret VASIL ,  Subhrajit ROYCHOWDHURY ,  Arvind RANGARAJAN ,  Joshua MOOK

IPC: B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/06 ,  B23K26/062

Abstract: A method, medium, and system to obtain an assignment of one of a plurality of different additive manufacturing (AM) print parameter sets to each of a plurality of 3D volume elements forming a representation of the model of the part; define a plurality of groupings based on margin parameter values associated with the model of the part; assign a print parameter set to each grouping; automatically assign each of the plurality of print parameter sets to a laser of a multi-laser AM device; save a record of the determined print parameter sets to laser assignments; and transmit the record of the determined print parameter sets to laser assignments to an AM controller to control the multi-laser AM device to generate the part based on the model of the part and the determined print parameter sets to laser assignments, the generated part to be built in a single build.

公开(公告)号：US20200298499A1

公开(公告)日：2020-09-24

申请号：US16360180

申请日：2019-03-21

Applicant: General Electric Company

Inventor： Vipul Kumar GUPTA ,  Natarajan CHENNIMALAI KUMAR ,  Anthony Joseph VINCIQUERRA ,  Laura Cerully DIAL ,  Voramon Supatarawanich DHEERADHADA ,  Timothy HANLON ,  Lembit SALASOO ,  Xiaohu PING ,  Subhrajit ROYCHOWDHURY ,  Justin John GAMBONE

IPC: B29C64/393 ,  B22F3/105 ,  B29C64/153

Abstract: According to some embodiments, system and methods are provided comprising receiving, via a communication interface of a parameter development module comprising a processor, a defined geometry for one or more parts, wherein the parts are manufactured with an additive manufacturing machine, and wherein a stack is formed from one or more parts; fabricating the one or more parts with the additive manufacturing machine based on a first parameter set; collecting in-situ monitoring data from one or more in-situ monitoring systems of the additive manufacturing machine for one or more parts; determining whether each stack should receive an additional part based on an analysis of the collected in-situ monitoring data; and fabricating each additional part based on the determination the stack should receive the additional part. Numerous other aspects are provided.

公开(公告)号：US20200276667A1

公开(公告)日：2020-09-03

申请号：US16288512

申请日：2019-02-28

Applicant: General Electric Company

Inventor： Robert John FILKINS ,  Subhrajit ROYCHOWDHURY ,  Juan BORJA ,  Thomas ADCOCK

IPC: B23K26/06 ,  B22F3/105 ,  B22F1/00 ,  B29C64/153 ,  B33Y10/00 ,  B29C64/268

Abstract: A system includes a first group of optic lenses within a focusing unit positioned along the propagation direction of a collimated laser beam, the first group of optic lenses separated by a predetermined fixed distance. The first group of optic lenses in conjunction cause the collimated beam to form as an annular beam as it passes through the first group of optic lenses. An axicon lens located distal from the first group of optic lenses along the propagation direction, the axicon lens operable to bifurcate the annular beam into two deflected collimated beam sections, and the axicon lens having a focus that causes the two deflected collimated beam sections to merge at a distance distal from the axicon lens to create an interference pattern region.

公开(公告)号：US20200238623A1

公开(公告)日：2020-07-30

申请号：US16260662

申请日：2019-01-29

Applicant: General Electric Company

Inventor： Nitish UMANG ,  Kai HERTEL ,  Christian WACKER ,  Subhrajit ROYCHOWDHURY ,  David TOLEDANO ,  Srinivas BOLLAPRAGADA

IPC: B29C64/393 ,  B29C64/153 ,  B29C64/268 ,  B22F3/105

Abstract: According to some embodiments, system and methods are provided comprising receiving input including: coordinates of one or more regions to be fabricated on a build plate, a laser boundary for each of two or more lasers, wherein the lasers fabricate the one or more regions, and a processing time for each region; deriving a prioritized sequence of the one or more regions to be fabricated; determining, based on the received coordinates and received laser boundary, one or more potential lasers assignments for each region; determining, based on the determined potential laser assignments, the prioritized sequence of the one or more regions, and the processing time for each region, a laser-to-region sequence for the one or more lasers to fabricate the one or more regions; assigning the determined laser-to-region sequence to the one or more lasers for fabrication of the one or more regions. Numerous other aspects are provided.

公开(公告)号：US20190134748A1

公开(公告)日：2019-05-09

申请号：US15807967

申请日：2017-11-09

Applicant: General Electric Company

Inventor： Subhrajit ROYCHOWDHURY ,  Thomas SPEARS ,  Justin GAMBONE

IPC: B23K26/342 ,  G01J1/42 ,  B23K26/06 ,  B23K26/064 ,  B23K26/70

Abstract: Some embodiments facilitate creation of an industrial asset item via an additive manufacturing process. A laser source may receive a laser power command signal PC and generate a laser beam output in accordance with PC. A first sensor may measure a power PD of a laser beam delivered for the additive manufacturing process. A second sensor may measure a power PO associated with the laser beam output from the laser source, wherein at least a portion of an optic train is located between the first and second sensors. A monitoring apparatus, coupled to the first and second sensors, may monitor PC, PO, and PD to facilitate creation of the industrial asset item. Responsive to the monitoring, the system may control at least one aspect of the additive manufacturing process, automatically generate an advisory indication, automatically localize a detected problem in the system, automatically predict a future performance of the system, etc.