Additive manufacturing powder spreading technology to mitigate surface defects
US11141912B2 · kind B2 · utility
2Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 10, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jan 29, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y40/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A laser powder bed fusion additive manufacturing system having a powder dispenser that provides powder layers on a build platform; a laser fusion system that fuses the powder layers, wherein spatter particles are produce on the powder layers; and a powder bed sweeping system that sweeps the spatter particles from the powder layers. The powder bed sweeping system includes a brush that has bristles that contact the spatter particles and sweeps the spatter particles from the powder layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.