IP Library Granted Patent US 12,638,837
Granted Patent B2
US 12,638,837 · App. 18/426,024 · Granted May 26, 2026

Systems, and methods for diagnosing an additive manufacturing device using a physics assisted machine learning model

Inventors: V S S Srivatsa Ponnada (Bengaluru, IN); Venkata Dharma Surya Narayana Sastry Rachakonda (Bengaluru, IN); Megha Navalgund (Bengaluru, IN); Pär Christoffer Arumskog (Molnlycke, SE); Mattias Fager (Molnlycke, SE)
Assignee: General Electric Company
G05B23/0208G05B19/4099G05B2219/49007G05B2223/06
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Quick Facts
Patent No.
US 12,638,837
App. No.
18/426,024
Granted
May 26, 2026
Kind
B2
Abstract

A system for diagnosing an additive manufacturing device is provided. The system includes a first module configured to: obtain one or more parameters for a digital twin of a component of the additive manufacturing device based on raw data from the component of the additive manufacturing device; and generate physics features for the digital twin of the component of the additive manufacturing device based on the one or more parameters and one or more transfer functions, a second module configured to obtain one or more classifiers for classifying the component as a first condition or a second condition based on physics features; and a third module configured to: determine a health of the component based on the generated physics features of the first model and the one or more classifiers.

Claims (40)

1 . An apparatus to diagnose an additive manufacturing device, the apparatus comprising:

memory; and

a processor, the processor to execute instructions stored in the memory to at least:

select at least one classifier based on physics features to be monitored for the additive manufacturing device, the at least one classifier formed from a model combined with at least one physics feature extracted from a first output of the additive manufacturing device;

determine a respective threshold for each physics feature, the threshold associated with the respective at least one classifier;

evaluate, using the at least one classifier and the respective threshold for each physics feature, data from operation of the additive manufacturing device to determine whether any respective threshold is exceeded;

classify operation of the additive manufacturing device based on the determination of whether any respective threshold is exceeded;

generate a second output based on the classification; and

adjust the additive manufacturing device based on the second output.

2 . The apparatus of claim 1 , wherein the classification includes: a) normal operation of the additive manufacturing device, and b) at least one of an error or a failure of the additive manufacturing device.

3 . The apparatus of claim 2 , wherein the second output includes a root cause of the at least one of the error or the failure.

4 . The apparatus of claim 3 , wherein the root cause is determined by applying at least one of a trained machine learning model or a statistical model.

5 . The apparatus of claim 3 , wherein the second output includes a correction for the root cause.

6 . The apparatus of claim 5 , wherein the correction includes an adjustment of the additive manufacturing device.

7 . The apparatus of claim 1 , wherein the physics features are extracted from at least one physics-based model of the additive manufacturing device, and wherein the at least one classifier is included in a data science model.

8 . The apparatus of claim 1 , wherein the at least one classifier is updated based on an efficiency drop associated with wear and tear of the additive manufacturing device.

9 . The apparatus of claim 1 , wherein the classification is further based on a weighted average and a transfer function.

10 . At least one non-transitory machine readable medium comprising instructions to cause at least one processor to at least:

select at least one classifier based on physics features to be monitored for an additive manufacturing device, the at least one classifier formed from a model combined with at least one physics feature extracted from a first output of the additive manufacturing device;

determine a respective threshold for each physics feature, the threshold associated with the respective at least one classifier;

evaluate, using the at least one classifier and the respective threshold for each physics feature, data from operation of the additive manufacturing device to determine whether any respective threshold is exceeded;

classify operation of the additive manufacturing device based on the determination of whether any respective threshold is exceeded;

generate a second output based on the classification, the second output to adjust at least one of the additive manufacturing device or the at least one classifier; and

adjust the additive manufacturing device based on the second output.

11 . The at least one non-transitory machine readable medium of claim 10 , wherein the classification includes: a) normal operation of the additive manufacturing device, and b) at least one of an error or a failure of the additive manufacturing device.

12 . The at least one non-transitory machine readable medium of claim 11 , wherein the second output includes a root cause of the at least one of the error or the failure.

13 . The at least one non-transitory machine readable medium of claim 12 , wherein the root cause is determined by applying at least one of a trained machine learning model or a statistical model.

14 . The at least one non-transitory machine readable medium of claim 12 , wherein the second output includes a correction for the root cause.

15 . The at least one non-transitory machine readable medium of claim 14 , wherein the correction includes an adjustment of the additive manufacturing device.

16 . The at least one non-transitory machine readable medium of claim 10 , wherein the physics features are extracted from at least one physics-based model of the additive manufacturing device, and wherein the at least one classifier is included in a data science model.

17 . The at least one non-transitory machine readable medium of claim 10 , wherein the at least one classifier is updated based on an efficiency drop associated with wear and tear of the additive manufacturing device.

18 . The at least one non-transitory machine readable medium of claim 10 , wherein the classification is further based on a weighted average and a transfer function.

19 . A method comprising:

selecting, by executing an instruction using processor circuitry, at least one classifier based on physics features to be monitored for an additive manufacturing device, the at least one classifier formed from a model combined with at least one physics feature extracted from a first output of the additive manufacturing device;

determining, by executing an instruction using processor circuitry, a respective threshold for each physics feature, the threshold associated with the respective at least one classifier;

evaluating, using the at least one classifier and the respective threshold for each physics feature, data from operation of the additive manufacturing device to determine whether any respective threshold is exceeded;

classifying, by executing an instruction using processor circuitry, operation of the additive manufacturing device based on the determination of whether any respective threshold is exceeded;

generating, by executing an instruction using processor circuitry, a second output based on the classification, the second output to adjust at least one of the additive manufacturing device or the at least one classifier; and

adjusting the additive manufacturing device based on the second output.

20 . The method of claim 19 , further including correcting a root cause of an error using the second output.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2024
From: PONNADA, V S S SRIVATSA; RACHAKONDA, VENKATA DHARMA SURYA NARAYANA SASTRY; NAVALGUND, MEGHA; ARUMSKOG, PÄR CHRISTOFFER; FAGER, MATTIAS
To: GENERAL ELECTRIC COMPANY
Reel/Frame 067027/0156 →
Continuity (4)
Continuation 17991462 · Nov 21, 2022
Continuation 17386396 · Jul 27, 2021
Provisional Application 63057554 · Jul 28, 2020
Related Publication 20240210930A1 · Jun 27, 2024
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