Process for additive manufacturing of parts by melting or sintering particles of powder(s) using a high-energy beam with powders adapted to the targeted process/material pair
US10710156B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Nov 3, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of fabricating parts out of metallic, intermetallic, ceramic, ceramic matrix composite, or metal matrix composite material with discontinuous reinforcement, includes melting or sintering powder particles by means of a high-energy beam. The powder used is a single powder of particles that present sphericity lying in the range 0.8 to 1.0 and of form factor lying in the range 1 to √2, each powder particle presenting substantially identical mean composition, and the grain size distribution of the particles of the powder is narrowed around the mean diameter value d50% in such a manner that: (d90%−d50%)/d50%≤0.66; and (d50%−d10%)/d50%≤0.33; with a “span”: (d90%−d10%)/d50%≤1.00.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.