公开(公告)号：US20250033136A1

公开(公告)日：2025-01-30

申请号：US18912782

申请日：2024-10-11

Applicant: General Electric Company

Inventor： Scott Alan Gold

IPC: B23K15/00 ,  B23K15/02 ,  B33Y30/00 ,  B33Y50/02 ,  G01N29/12 ,  G01N29/24

Abstract: Devices, systems, methods, and kits of parts for monitoring operation of an electron beam additive manufacturing systems are disclosed. A monitoring system includes one or more measuring devices positioned on the at least one wall in the interior of a build chamber of the additive manufacturing system. Each one of the one or more measuring devices includes a piezoelectric crystal. The monitoring system further includes an analysis component communicatively coupled to the one or more measuring devices. The analysis component is programmed to receive information pertaining to a frequency of oscillation of the piezoelectric crystal. A collection of material on the one or more measuring devices during formation of an article within the build chamber causes a change to the frequency of oscillation of the piezoelectric crystal that is detectable by the analysis component and usable to determine a potential build anomaly of the article.

公开(公告)号：US11806925B2

公开(公告)日：2023-11-07

申请号：US18069544

申请日：2022-12-21

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  Thomas Graham Spears ,  Ajay Kumar Anand

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/70 ,  B23K26/03 ,  B23K26/14 ,  B23K31/00 ,  B22F10/28 ,  B22F12/49 ,  B22F12/60 ,  B22F12/90 ,  B22F10/322 ,  B22F10/368

CPC classification number: B29C64/153 ,  B22F10/28 ,  B23K26/032 ,  B23K26/034 ,  B23K26/1464 ,  B23K26/342 ,  B23K26/702 ,  B23K31/003 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/322 ,  B22F10/368 ,  B22F12/49 ,  B22F12/60 ,  B22F12/90

Abstract: A system and method of monitoring a powder-bed additive manufacturing process is provided where a layer of additive powder is fused using an energy source and electromagnetic emission signals are measured by a melt pool monitoring system to monitor the print process. The measured emission signals are analyzed to identify outlier emissions and clusters of outliers are identified by assessing the spatial proximity of the outlier emissions, e.g., using clustering algorithms, spatial control charts, etc. An alert may be provided or a process adjustment may be made when a cluster is identified or when a magnitude of a cluster exceeds a predetermined cluster threshold.

公开(公告)号：US11648730B2

公开(公告)日：2023-05-16

申请号：US17183451

申请日：2021-02-24

Applicant: General Electric Company

Inventor： Scott Alan Gold

IPC: G01N29/30 ,  B22F3/10 ,  B22F7/00 ,  B33Y50/00 ,  G01N29/22 ,  B22F10/20 ,  B22F10/30 ,  B22F10/10 ,  B22F10/00

CPC classification number: G01N29/30 ,  B33Y50/00 ,  G01N29/223 ,  B22F10/00 ,  B22F10/10 ,  B22F10/20 ,  B22F10/30

Abstract: A calibration system for an acoustic monitoring system of an additive manufacturing machine includes a calibration platform removably mountable to a build platform of the additive manufacturing machine and one or more calibrated acoustic sources mounted to the calibration platform. The one or more calibrated acoustic sources define a measurement standard when operating.

公开(公告)号：US11534961B2

公开(公告)日：2022-12-27

申请号：US16662662

申请日：2019-10-24

Applicant: General Electric Company

Inventor： Scott Alan Gold

IPC: B29C67/00 ,  B29C64/153 ,  B29C64/393 ,  B29C64/277 ,  B29C64/268 ,  B29C64/205 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A system and method of monitoring a powder-bed additive manufacturing process using a plurality of energy sources is provided. A layer of additive powder is deposited on a powder bed and is fused using a first energy source, a second energy source, or any other suitable number of energy sources. The electromagnetic energy emissions at a first melt pool are monitored by a melt pool monitoring system and recorded as raw emission signals. The melt pool monitoring system may also monitor emissions from the powder bed using off-axis sensors or from a second melt pool using on-axis sensors, and these emissions may be used to modify the raw emission signals to generate compensated emission signals. The compensated emission signals are analyzed to identify outlier emissions and an alert may be provided or a process adjustment may be made when outlier emissions exceed a predetermined signal threshold.

公开(公告)号：US10821718B2

公开(公告)日：2020-11-03

申请号：US15631965

申请日：2017-06-23

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Scott Alan Gold ,  Christian Stevenson

IPC: B29C64/321 ,  B33Y10/00 ,  B29C65/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B22F3/105 ,  B29C64/188 ,  G01N21/33 ,  B29L9/00 ,  B29K23/00 ,  B29K105/16

Abstract: The present disclosure generally relates to methods and apparatuses for secondary material deposition and insert deposition during additive manufacturing (AM) processes. Such methods and apparatuses can be used to embed chemical signatures into manufactured objects, and such embedded chemical signatures may find use in anti-counterfeiting operations and in manufacture of objects with multiple materials.

公开(公告)号：US10762407B2

公开(公告)日：2020-09-01

申请号：US15479796

申请日：2017-04-05

Applicant: General Electric Company

Inventor： Scott Alan Gold

IPC: G06K19/06 ,  B33Y80/00 ,  B33Y10/00 ,  B22F5/04 ,  B33Y70/00 ,  B22F3/105 ,  B29C64/153 ,  B28B1/00 ,  F01D5/14

Abstract: A component incorporating a 3-D identification code includes: a component body having an interior bounded by an exterior surface; and an identification code formed as a part of at least one of the interior and the exterior surface, the identification code including a plurality of cells arranged in a three-dimensional space, wherein each of the cells is configured to encode more than two possible values.

公开(公告)号：US20200166482A1

公开(公告)日：2020-05-28

申请号：US16202539

申请日：2018-11-28

Applicant: General Electric Company

Inventor： Scott Alan Gold

IPC: G01N29/30 ,  G01N29/22 ,  B33Y50/00

Abstract: A system and method for calibrating an acoustic monitoring system of an additive manufacturing machine includes installing a calibration system on the machine and performing a calibration process. Specifically, the calibration system includes a calibration platform removably mountable to a build platform of the additive manufacturing machine and having calibrated acoustic source mounted thereon for defining a measurement standard. The acoustic waves generated by the calibrated acoustic source are measured by the acoustic monitoring system and compared to the known measurement standard to determine whether system adjustments would improve process tolerances or uniformity.

公开(公告)号：US20200147868A1

公开(公告)日：2020-05-14

申请号：US16662701

申请日：2019-10-24

Applicant: General Electric Company

Inventor： Scott Alan Gold

IPC: B29C64/153 ,  B29C64/205 ,  B29C64/268 ,  B29C64/245 ,  B29C64/393

Abstract: A system and method of monitoring a powder-bed additive manufacturing process is provided where a layer of additive powder is fused using an energy source and electromagnetic emission signals are measured by a melt pool monitoring system to monitor the print process. The method includes determining thermal conductive properties of the part and the powder bed, e.g., by estimating thermal lag between the printing of adjacent portions of the part or determining thermal resistance using a thermal model of the part and the powder bed. The method may include obtaining a predicted emission signal based at least in part on these thermal conductive properties and comparing with measured emission signals. An alert may be provided or a process adjustment may be made when a difference between the measured emission signals and the predicted emission signal exceeds a predetermined error threshold.

公开(公告)号：US20200147867A1

公开(公告)日：2020-05-14

申请号：US16662662

申请日：2019-10-24

Applicant: General Electric Company

Inventor： Scott Alan Gold

IPC: B29C64/153 ,  B29C64/205 ,  B29C64/268 ,  B29C64/277 ,  B29C64/393

Abstract: A system and method of monitoring a powder-bed additive manufacturing process using a plurality of energy sources is provided. A layer of additive powder is deposited on a powder bed and is fused using a first energy source, a second energy source, or any other suitable number of energy sources. The electromagnetic energy emissions at a first melt pool are monitored by a melt pool monitoring system and recorded as raw emission signals. The melt pool monitoring system may also monitor emissions from the powder bed using off-axis sensors or from a second melt pool using on-axis sensors, and these emissions may be used to modify the raw emission signals to generate compensated emission signals. The compensated emission signals are analyzed to identify outlier emissions and an alert may be provided or a process adjustment may be made when outlier emissions exceed a predetermined signal threshold.

公开(公告)号：US20200064173A1

公开(公告)日：2020-02-27

申请号：US16663727

申请日：2019-10-25

Applicant: General Electric Company

Inventor： Scott Alan Gold ,  James Harding Shealy ,  Lucas Christian Jones

IPC: G01F15/14 ,  G01P5/00 ,  G01P5/26 ,  B22F3/105 ,  B33Y50/02

Abstract: A method of characterizing gas flow within a housing includes: positioning one or more gas flow sensors in the housing; introducing a gas flow into the housing; using the one or more gas flow sensors to generate two or more gas flow measurements at spaced-apart locations within the housing; and recording the two or more measurements to create a gas flow map.