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System and method for microwave volumetric additive manufacturing

Patent ·
OSTI ID:2294003
; ;

The present disclosure relates to a volumetric additive manufacturing system for forming a structure from a volume of resin using microwave energy. The system makes use of an electronic controller and at least one beam forming algorithm accessible by the electronic controller for generating information relating to an amplitude and a time delay for forming a microwave signal, where the microwave signal will be used in irradiating a build volume, and where the build volume is formed by the volume of resin. A microwave signal generating subsystem is included which is responsive to the information generated by the beam forming algorithm, and which generates a microwave signal using the amplitude and the time delay determined by the beam forming algorithm. An antenna is used to receive the microwave signal and project the microwave signal as a microwave beam, in accordance with the amplitude and time delay, into the build volume to form the structure.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
11,850,790
Application Number:
17/518,115
OSTI ID:
2294003
Country of Publication:
United States
Language:
English

References (10)

Microwave chemistry, recent advancements, and eco-friendly microwave-assisted synthesis of nanoarchitectures and their applications: a review journal August 2020
One-step volumetric additive manufacturing of complex polymer structures journal December 2017
One Decade of Microwave-Assisted Polymerizations: Quo vadis?: One Decade of Microwave-Assisted Polymerizations: Quo vadis? journal January 2011
A comprehensive evaluation for different post-curing methods used in stereolithography additive manufacturing journal August 2020
Rapid curing and additive manufacturing of thermoset systems using scanning microwave heating of carbon nanotube/epoxy composites journal August 2017
Welding of 3D-printed carbon nanotube–polymer composites by locally induced microwave heating journal June 2017
Volumetric additive manufacturing via tomographic reconstruction journal January 2019
Comparison of microwave and thermal cure of epoxy–anhydride resins: Mechanical properties and dynamic characteristics journal May 2005
Towards Selective Volumetric Additive Manufacturing and Processing of Ceramics conference August 2019
Microwave curing of an epoxy–amine system: effect of curing agent on the glass-transition temperature journal January 2001

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