Apparatus for fiber reinforced additive manufacturing
US10611082B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2017 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Jun 9, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2793/0081
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
According to one aspect, embodiments herein provide a 3-D printer comprising a composite filament supply, a build platen, a print head comprising a composite filament ironing tip and a heater, a plurality of actuators that move the print head and the build platen relative to one another in three degrees of freedom at a printing rate, at least one linear feed mechanism that advances the composite filament at a feed rate and drives the composite filament into the print head to deposit the composite filament, and a controller configured to operate the heater to heat the composite filament ironing tip to flow matrix material among axial fiber strands within the composite filament and operate the plurality of actuators to press the composite filament ironing tip against the composite filament and reshape the composite filament against one of the build platen and a composite filament previously deposited upon the build platen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.