Jetting layers of powder and the formation of fine powder beds thereby
US6596224B1 · kind B1 · utility
212Cited by
7References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2000 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A powder bed (32) is built up by repeated deposition of a slurry that contains powder. Layers are made by depositing a liquid dispersion of the desired powdered material, which then slip-casts into the forming powder bed to make a new layer (34). The slurry may be deposited in any suitable manner, such as by raster or vector scanning, or by a plurality of simultaneous jets that coalesce before the liquid slip-casts into the bed, or by individual drops, the deposits of which are individually controlled, thereby generating a regular surface for each layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.