Microwave-induced localized heating of CNT filled polymer composites for enhanced inter-bead diffusive bonding of fused filament fabricated part
US11712822B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2019 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Jul 19, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2924
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A microwave-induced heating of CNT filled (or coated) polymer composites for enhancing inter-bead diffusive bonding of fused filament fabricated parts. The technique incorporates microwave absorbing nanomaterials (carbon nanotubes (CNTs)) onto the surface or throughout the volume of 3D printer polymer filament to increase the inter-bead bond strength following a post microwave irradiation treatment and/or in-situ focused microwave beam during printing. The overall strength of the final 3D printed part will be dramatically increased and the isotropic mechanical properties of fused filament part will approach or exceed conventionally manufactured counterparts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.