Lattice base structures for additive manufacturing
US11230050B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Apr 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y80/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making at least one three-dimensional object by additive manufacturing, including: (a) producing, on a carrier platform, by bottom-up stereolithography from a single batch of polymerizable resin, a composite article comprising and produced in the sequence of: (i) an open lattice layer on the carrier platform; then (ii) a frangible layer on the lattice layer; and then (iii) at least one three-dimensional object on the frangible layer; then (b) cleaning the composite article with a wash liquid while on the carrier platform; (c) optionally separating the composite article from the carrier platform; and (d) optionally further curing the composite article; and then (e) separating the at least one three-dimensional object from the lattice layer by cutting or breaking the frangible layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.