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Nonlinear Ultrasonic Techniques for In-Situ Process Monitoring of AM Components
This technology is a method to detect defect formation in additively manufactured metal parts through the building process. It will provide real-time process monitoring and process control in a non-invasive and non-destructive fashion. This method can be used with various types of manufacturing. Currently, it can be used with laser and e-beam powder...
Published: 8/1/2024
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Inventor(s): Tribikram Kundu, Umar Amjad, Krishna Muralidharan, Susana Castillo, Anna Hayes, Barrett Potter, Jr., Hamad Alnuaimi
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Industrial & Manufacturing, Technology Classifications > Materials > Processing
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Additive Manufacturing Using Laser Reactive Sintering of Mixtures of Metallic Powders and Sulfur
This invention is a new powder mixture of chalcophilic metals or others and sulfur for use in selective laser sintering (SLS), a form of 3D printing.
Background:
Selective laser sintering (SLS) is a 3D printing technology has typically been used with plastics such as nylon and polystyrene but can also be used with metals such as steel and titanium....
Published: 8/1/2024
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Inventor(s): Douglas Loy, Dong-Chul Pyun, Venkateswara Manga, Krishna Muralidharan, Barrett Potter, Jr.
Keywords(s):
Category(s): Technology Classifications > Materials
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Improved Fused Filament Deposition 3D Printing Using Filaments Coated With Thermoreversible Thermosets
This invention demonstrates a new polymer to coat the spool of thermoplastic filament used in fused deposition modeling (FDM) 3D printing with a thermoreversible thermoset. The goal is to provide a layer that will liquefy in the hot printer nozzle to produce a lower viscosity liquid polymer. This coats the melted filament and increases the wetting and...
Published: 8/1/2024
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Inventor(s): Douglas Loy, Piaoran Ye, Krishna Muralidharan, Barrett Potter, Jr.
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Devices & Instrumentation, Technology Classifications > Engineering & Physical Sciences > Industrial & Manufacturing, Technology Classifications > Materials > Polymers
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3D Filament Printing of Thermoreversible Thermoset Filaments with a Delayed Cure
Filaments made of a thermoreversible thermoset based on Diels Alder cycloadducts are used in 3D filament printing to create 3D artifacts that will irreversibly cure via reaction of reactive diene or dienophile components. This allows filaments to be made and a thermoset to be formed in the final printing.
Applications:
3D Printing, prototyping,...
Published: 8/1/2024
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Inventor(s): Douglas Loy, Krishna Muralidharan, Barrett Potter, Jr.
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Industrial & Manufacturing, Technology Classifications > Materials > Polymers
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3D Printing Using Peroxide Bearing Powdered Materials as Catalyst/Fillers
This invention involves the inkjet 3D printing of liquid precursors with epoxide or vinyl reactive groups into powder beds of extraterrestrial materials or simulants with catalytic peroxidizing or Lewis acidic metal sites which allows formation of thermoplastic or thermoset composites for agile manufacturing.
Applications
Allows for conversion...
Published: 8/1/2024
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Inventor(s): Douglas Loy, Krishna Muralidharan, Barrett Potter, Jr.
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Industrial & Manufacturing, Technology Classifications > Materials > Composites
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