Radiation method for additive manufacturing
US11534963B2 · kind B2 · utility
0Cited by
9References
16Claims
0Family size
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Key dates
| Filing date | Mar 26, 2019 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Jun 5, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a three-dimensional object by solidifying selected areas of consecutive powder layers is provided. At least one electron beam successively irradiates predetermined sections of each powder layer by moving an interaction region in which the electron beam interacts with the powder layer. Electromagnetic radiation from a radiation source is directed onto the powder layer to reduce local electrostatic charging in the interaction region. In this way, levitation and scattering of charged powder will be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.