Solid freeform fabrication of shelled objects
US11198245B2 · kind B2 · utility
1Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2015 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of layerwise solid freeform fabrication is disclosed. The method comprises, for each of at least a few of the layers, dispensing and hardening at least a first modeling material and a second modeling material to form a core region and one or more envelope regions at least partially surrounding the core region. In some embodiments, the ratio between the elastic moduli of adjacent regions, when hardened, is from about 1 to about 20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.