Patents Assigned to Sigma Additive Solutions, Inc.
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Publication number: 20240092016Abstract: This invention teaches a quality assurance system for additive manufacturing. This invention teaches a multi-sensor, real-time quality system including sensors, affiliated hardware, and data processing algorithms that are Lagrangian-Eulerian with respect to the reference frames of its associated input measurements. The quality system for Additive Manufacturing is capable of measuring true in-process state variables associated with an additive manufacturing process, i.e., those in-process variables that define a feasible process space within which the process is deemed nominal. The in-process state variables can also be correlated to the part structure or microstructure and can then be useful in identifying particular locations within the part likely to include defects.Type: ApplicationFiled: November 17, 2023Publication date: March 21, 2024Applicant: Sigma Additive Solutions, Inc.Inventors: Vivek R. Dave, R. Bruce Madigan, MArk J. Cola, Martin S. Piltch
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Publication number: 20240085336Abstract: This disclosure describes various system and methods for monitoring photons emitted by a heat source of an additive manufacturing device. Sensor data recorded while monitoring the photons can be used to predict metallurgical, mechanical and geometrical properties of a part produced during an additive manufacturing operation. In some embodiments, a test pattern can be used to calibrate an additive manufacturing device.Type: ApplicationFiled: April 19, 2023Publication date: March 14, 2024Applicant: Sigma Additive Solutions, Inc.Inventors: Vivek R. Dave, Mark J. Cola, R. Bruce Madigan, Alberto Castro, Glenn Wikle, Lars Jacquemetton, Peter Campbell
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Patent number: 11858207Abstract: This invention teaches a quality assurance system for additive manufacturing. This invention teaches a multi-sensor, real-time quality system including sensors, affiliated hardware, and data processing algorithms that are Lagrangian-Eulerian with respect to the reference frames of its associated input measurements. The quality system for Additive Manufacturing is capable of measuring true in-process state variables associated with an additive manufacturing process, i.e., those in-process variables that define a feasible process space within which the process is deemed nominal. The in-process state variables can also be correlated to the part structure or microstructure and can then be useful in identifying particular locations within the part likely to include defects.Type: GrantFiled: February 21, 2023Date of Patent: January 2, 2024Assignee: Sigma Additive Solutions, Inc.Inventors: Vivek R. Dave, R. Bruce Madigan, Mark J. Cola, Martin S. Piltch
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Patent number: 11692876Abstract: An optical manufacturing process sensing and status indication system is taught that is able to utilize optical emissions from a manufacturing process to infer the state of the process. In one case, it is able to use these optical emissions to distinguish thermal phenomena on two timescales and to perform feature extraction and classification so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. In other case, it is able to utilize these optical emissions to derive corresponding spectra and identify features within those spectra so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process.Type: GrantFiled: July 9, 2021Date of Patent: July 4, 2023Assignee: Sigma Additive Solutions, Inc.Inventors: Vivek R. Dave, Mark J. Cola, R. Bruce Madigan, Martin S. Piltch, Alberto Castro
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Publication number: 20230202100Abstract: This invention teaches a quality assurance system for additive manufacturing. This invention teaches a multi-sensor, real-time quality system including sensors, affiliated hardware, and data processing algorithms that are Lagrangian-Eulerian with respect to the reference frames of its associated input measurements. The quality system for Additive Manufacturing is capable of measuring true in-process state variables associated with an additive manufacturing process, i.e., those in-process variables that define a feasible process space within which the process is deemed nominal. The in-process state variables can also be correlated to the part structure or microstructure and can then be useful in identifying particular locations within the part likely to include defects.Type: ApplicationFiled: February 21, 2023Publication date: June 29, 2023Applicant: Sigma Additive Solutions, Inc.Inventors: Vivek R. Dave, R. Bruce Madigan, Mark J. Cola, Martin S. Piltch
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Patent number: 11674904Abstract: This disclosure describes various system and methods for monitoring photons emitted by a heat source of an additive manufacturing device. Sensor data recorded while monitoring the photons can be used to predict metallurgical, mechanical and geometrical properties of a part produced during an additive manufacturing operation. In some embodiments, a test pattern can be used to calibrate an additive manufacturing device.Type: GrantFiled: June 29, 2020Date of Patent: June 13, 2023Assignee: Sigma Additive Solutions, Inc.Inventors: Vivek R. Dave, Mark J. Cola, R. Bruce Madigan, Alberto Castro, Glenn Wikle, Lars Jacquemetton, Peter Campbell
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Publication number: 20230127650Abstract: This disclosure describes an additive manufacturing method that includes monitoring a temperature of a portion of a build plane during an additive manufacturing operation using a temperature sensor as a heat source passes through the portion of the build plane; detecting a peak temperature associated with one or more passes of the heat source through the portion of the build plane; determining a threshold temperature by reducing the peak temperature by a predetermined amount; identifying a time interval during which the monitored temperature exceeds the threshold temperature; identifying, using the time interval, a change in manufacturing conditions likely to result in a manufacturing defect; and changing a process parameter of the heat source in response to the change in manufacturing conditions.Type: ApplicationFiled: August 25, 2022Publication date: April 27, 2023Applicant: SIGMA ADDITIVE SOLUTIONS, INC.Inventors: Lars Jacquemetton, Vivek R. Dave, Mark J. Cola, Glenn Wikle, R. Bruce Madigan
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Patent number: 11607875Abstract: This invention teaches a quality assurance system for additive manufacturing. This invention teaches a multi-sensor, real-time quality system including sensors, affiliated hardware, and data processing algorithms that are Lagrangian-Eulerian with respect to the reference frames of its associated input measurements. The quality system for Additive Manufacturing is capable of measuring true in-process state variables associated with an additive manufacturing process, i.e. those in-process variables that define a feasible process space within which the process is deemed nominal. The in-process state variables can also be correlated to the part structure or microstructure and can then be useful in identifying particular locations within the part likely to include defects.Type: GrantFiled: August 23, 2021Date of Patent: March 21, 2023Assignee: Sigma Additive Solutions, Inc.Inventors: Vivek R. Dave, R. Bruce Madigan, Mark J. Cola, Martin S. Piltch