Fabrication of three dimensional structures by in-flight curing of aerosols
US10994473B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Sep 20, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y40/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for fabricating three-dimensional structures. In-flight heating or UV illumination modifies the properties of aerosol droplets as they are jetted onto a target surface. The UV light at least partially cures photopolymer droplets, or alternatively causes droplets of solvent-based nanoparticle dispersions to rapidly dry in-flight, and the resulting increased viscosity of the aerosol droplets facilitates the formation of free standing three-dimensional structures. This 3D fabrication can be performed using a wide variety of photopolymer, nanoparticle dispersion, and composite materials. The resulting 3D shapes can be free standing, fabricated without supports, and can attain arbitrary shapes by manipulating the print nozzle relative to the target substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.