Electrophotography-based additive manufacturing with support structure and boundary
US10675858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2016 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | May 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1695
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of printing a part in an additive manufacturing system includes printing a support structure for the part, printing a boundary surrounding the support structure, and printing the part on the support structure. An additive manufacturing system for printing a three-dimensional part includes a transfer medium configured to receive and transfer imaged layers of a thermoplastic-based powder for a boundary, a thermoplastic-based powder for a support, and a thermoplastic-based powder for the part from at least two imaging engines, a heater configured to heat the imaged layers on the transfer medium to at least a fusion temperature of the thermoplastic-based powder, and a layer transfusion assembly including a build platform, the layer transfusion assembly being configured to transfuse the heated layers in a layer-by-layer manner onto the build platform to print the three-dimensional part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.