Spectral emissivity and temperature measurements of metal powders during continuous processing in powder bed fusion additive manufacturing
US12036608B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2021 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Dec 8, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of measuring spectral emissivity of materials is provided. The method comprises placing material in a controlled chamber and exposing the material to an energy source to heat the material. At least one multi-wavelength pyrometer measures the spectral emissivity of the material produced by heating by the energy source, wherein the multi-wavelength pyrometer is positioned at a distal end of a tube extending from the chamber, wherein the tube provides a sacrificial surface for vapor condensation to prevent the vapor condensation from obscuring a view port used by the pyrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.