Patents by Inventor Alberto M. Castro
Alberto M. Castro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Systems and methods for measuring radiated thermal energy during an additive manufacturing operation
Patent number: 11938560Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.Type: GrantFiled: June 14, 2022Date of Patent: March 26, 2024Assignee: DIVERGENT TECHNOLOGIES, INC.Inventors: R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Darren Beckett, Alberto M. Castro -
SYSTEMS AND METHODS FOR MEASURING RADIATED THERMAL ENERGY DURING AN ADDITIVE MANUFACTURING OPERATION
Publication number: 20220388249Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.Type: ApplicationFiled: June 14, 2022Publication date: December 8, 2022Applicant: Sigma Labs, Inc.Inventors: R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Darren Beckett, Alberto M. Castro -
APPARATUS AND METHODS FOR CALIBRATING ON-AXIS TEMPERATURE SENSORS FOR ADDITIVE MANUFACTURING SYSTEMS
Publication number: 20220324026Abstract: This disclosure describes various methods and apparatus for calibration of temperature sensors in additive manufacturing systems. A method for calibration of temperature sensors can include selecting a first wavelength and a second wavelength spaced apart from the first wavelength; measuring an amount of energy radiated from a black body source at the first wavelength; measuring an amount of energy radiated from the black body source at the second wavelength; generating a relationship between a ratio of the amount of energy radiated at the first wavelength to the amount of energy radiated at the second wavelength; and determining, using the relationship, variations in a temperature of a build plane of an additive manufacturing system based upon a ratio of energy radiated at the first wavelength to energy radiated at the second wavelength.Type: ApplicationFiled: April 13, 2022Publication date: October 13, 2022Applicant: Sigma Labs, Inc.Inventors: Darren Beckett, Martin S. Piltch, Lars Jacquemetton, Alberto M. Castro, Brett Diehl -
SYSTEMS AND METHODS FOR MEASURING RADIATED THERMAL ENERGY DURING AN ADDITIVE MANUFACTURING OPERATION
Publication number: 20220324056Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensing system that monitors two discrete wavelengths associated with a blackbody radiation curve of the layer of powder; determining temperature variations for an area of the build plane traversed by the scans based upon a ratio of sensor readings taken at the two discrete wavelengths; determining that the temperature variations are outside a threshold range of values; and thereafter, adjusting subsequent scans of the energy source across or proximate the area of the build plane.Type: ApplicationFiled: June 22, 2022Publication date: October 13, 2022Applicant: Sigma Labs, Inc.Inventors: Darren Beckett, Scott Betts, Martin Piltch, R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Alberto M. Castro, Roger Frye -
Systems and methods for measuring radiated thermal energy during an additive manufacturing operation
Patent number: 11390035Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.Type: GrantFiled: September 18, 2019Date of Patent: July 19, 2022Assignee: SIGMA LABS, INC.Inventors: R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Darren Beckett, Alberto M. Castro -
Publication number: 20220111444Abstract: This disclosure describes an additive manufacturing system that includes a build plane having a first region and a second region. Multiple energy source can be positioned above the build plane and configured to direct energy into the first and second regions of the build plane. The system includes optical sensors configured to monitor an intensity of light emitted from the energy sources. A processor associated with the additive manufacturing system is configured to adjust the sensor outputs in response to the energy sources coming into close proximity.Type: ApplicationFiled: December 17, 2021Publication date: April 14, 2022Applicant: Sigma Labs, Inc.Inventors: R. Bruce Madigan, Mark J. Cola, Scott Betts, Darren Beckett, Alberto M. Castro, Lars Jacquemetton, Martin Piltch
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Patent number: 11260456Abstract: This disclosure describes an additive manufacturing system that includes a build plane having a first region and a second region. Multiple energy source can be positioned above the build plane and configured to direct energy into the first and second regions of the build plane. The system includes optical sensors configured to monitor an intensity of light emitted from the energy sources. A processor associated with the additive manufacturing system is configured to adjust the sensor outputs in response to the energy sources coming into close proximity.Type: GrantFiled: August 26, 2020Date of Patent: March 1, 2022Assignee: SIGMA LABS, INC.Inventors: R. Bruce Madigan, Mark J. Cola, Scott Betts, Darren Beckett, Alberto M. Castro, Lars Jacquemetton, Martin Piltch
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Publication number: 20210138578Abstract: An additive manufacturing system comprises a build plane and an energy source configured to direct energy onto a work region of the build plane. An optical detector is configured to receive one or more optical signals from the work region. An optical filter is positioned between the work region and the optical detector, wherein the optical filter includes a first partially transmissive polarized filter having a first polarization axis and a second partially transmissive polarized filter having a second polarization axis. The first polarization axis is rotationally offset from the second polarization axis approximately 90 degrees. The optical filter improves the signal to noise ratio of the optical sensors.Type: ApplicationFiled: November 6, 2020Publication date: May 13, 2021Applicant: SIGMA LABS, INC.Inventors: Darren Beckett, Martin S. Piltch, Scott Betts, Alberto M. Castro, Kevin Anderson, Lars Jacquemetton, Luis Aguilar
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Publication number: 20210046546Abstract: This disclosure describes an additive manufacturing system that includes a build plane having a first region and a second region. Multiple energy source can be positioned above the build plane and configured to direct energy into the first and second regions of the build plane. The system includes optical sensors configured to monitor an intensity of light emitted from the energy sources. A processor associated with the additive manufacturing system is configured to adjust the sensor outputs in response to the energy sources coming into close proximity.Type: ApplicationFiled: August 26, 2020Publication date: February 18, 2021Applicant: Sigma Labs, Inc.Inventors: R. Bruce Madigan, Mark J. Cola, Scott Betts, Darren Beckett, Alberto M. Castro, Lars Jacquemetton, Martin Piltch
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Patent number: 10786850Abstract: This disclosure describes an additive manufacturing system that includes a build plane having a first region and a second region. Multiple energy source can be positioned above the build plane and configured to direct energy into the first and second regions of the build plane. The system includes optical sensors configured to monitor an intensity of light emitted from the energy sources. A processor associated with the additive manufacturing system is configured to adjust the sensor outputs in response to the energy sources coming into close proximity.Type: GrantFiled: February 21, 2019Date of Patent: September 29, 2020Assignee: SIGMA LABS, INC.Inventors: R. Bruce Madigan, Mark J. Cola, Scott Betts, Darren Beckett, Alberto M. Castro, Lars Jacquemetton, Martin Piltch
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SYSTEMS AND METHODS FOR MEASURING RADIATED THERMAL ENERGY DURING AN ADDITIVE MANUFACTURING OPERATION
Publication number: 20200290154Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensing system that monitors two discrete wavelengths associated with a blackbody radiation curve of the layer of powder; determining temperature variations for an area of the build plane traversed by the scans based upon a ratio of sensor readings taken at the two discrete wavelengths; determining that the temperature variations are outside a threshold range of values; and thereafter, adjusting subsequent scans of the energy source across or proximate the area of the build plane.Type: ApplicationFiled: March 26, 2020Publication date: September 17, 2020Applicant: Sigma Labs, Inc.Inventors: Darren Beckett, Scott Betts, Martin Piltch, R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Alberto M. Castro, Roger Frye -
Systems and methods for measuring radiated thermal energy during an additive manufacturing operation
Patent number: 10639745Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensing system that monitors two discrete wavelengths associated with a blackbody radiation curve of the layer of powder; determining temperature variations for an area of the build plane traversed by the scans based upon a ratio of sensor readings taken at the two discrete wavelengths; determining that the temperature variations are outside a threshold range of values; and thereafter, adjusting subsequent scans of the energy source across or proximate the area of the build plane.Type: GrantFiled: February 21, 2019Date of Patent: May 5, 2020Assignee: SIGMA LABS, INC.Inventors: Darren Beckett, Scott Betts, Martin Piltch, R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Alberto M. Castro, Roger Frye -
SYSTEMS AND METHODS FOR MEASURING RADIATED THERMAL ENERGY DURING AN ADDITIVE MANUFACTURING OPERATION
Publication number: 20200101671Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.Type: ApplicationFiled: September 18, 2019Publication date: April 2, 2020Applicant: Sigma Labs, Inc.Inventors: R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Darren Beckett, Alberto M. Castro -
Systems and methods for measuring radiated thermal energy during an additive manufacturing operation
Patent number: 10479020Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.Type: GrantFiled: August 1, 2018Date of Patent: November 19, 2019Assignee: SIGMA LABS, INC.Inventors: R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Darren Beckett, Alberto M. Castro -
Publication number: 20190255614Abstract: This disclosure describes an additive manufacturing system that includes a build plane having a first region and a second region. Multiple energy source can be positioned above the build plane and configured to direct energy into the first and second regions of the build plane. The system includes optical sensors configured to monitor an intensity of light emitted from the energy sources. A processor associated with the additive manufacturing system is configured to adjust the sensor outputs in response to the energy sources coming into close proximity.Type: ApplicationFiled: February 21, 2019Publication date: August 22, 2019Applicant: Sigma Labs, Inc.Inventors: R. Bruce Madigan, Mark J. Cola, Scott Betts, Darren Beckett, Alberto M. Castro, Lars Jacquemetton, Martin Piltch
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SYSTEMS AND METHODS FOR MEASURING RADIATED THERMAL ENERGY DURING AN ADDITIVE MANUFACTURING OPERATION
Publication number: 20190255654Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensing system that monitors two discrete wavelengths associated with a blackbody radiation curve of the layer of powder; determining temperature variations for an area of the build plane traversed by the scans based upon a ratio of sensor readings taken at the two discrete wavelengths; determining that the temperature variations are outside a threshold range of values; and thereafter, adjusting subsequent scans of the energy source across or proximate the area of the build plane.Type: ApplicationFiled: February 21, 2019Publication date: August 22, 2019Applicant: Sigma Labs, Inc.Inventors: Darren Beckett, Scott Betts, Martin Piltch, R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Alberto M. Castro, Roger Frye -
SYSTEMS AND METHODS FOR MEASURING RADIATED THERMAL ENERGY DURING AN ADDITIVE MANUFACTURING OPERATION
Publication number: 20190039318Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensor; determining an area of the build plane traversed during the scans; determining a thermal energy density for the area of the build plane traversed by the scans based upon the amount of energy radiated and the area of the build plane traversed by the scans; mapping the thermal energy density to one or more location of the build plane; determining that the thermal energy density is characterized by a density outside a range of density values; and thereafter, adjusting subsequent scans of the energy source across or proximate the one or more locations of the build plane.Type: ApplicationFiled: August 1, 2018Publication date: February 7, 2019Applicant: Sigma Labs, Inc.Inventors: R. Bruce Madigan, Lars Jacquemetton, Glenn Wikle, Mark J. Cola, Vivek R. Dave, Darren Beckett, Alberto M. Castro