Automated manufacture of 3D objects from composite material
US11465337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2021 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Nov 10, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C64/295
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Described is a method of manufacture of 3D objects from composite materials. The method includes the use of an extrusion nozzle configured to extrude the composite material, including a multistrand filament with a thixotropic acrylic matrix material surrounding the multistrand filament. Extruding a 3D object surface segment spanning in the air over at least a segment of a discontinuous work surface and operating concurrently a source of curing energy to pin and enhance the strength of a 3D object surface segment spanning in air. The 3D object extruded surface segment spanning in the air is sufficiently rigid and maintains its shape without the use of a mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.