Additive manufacturing processing with oxidation
US9988721B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jun 28, 2016 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method includes additively manufacturing an article in an inert environment, removing the article from the inert environment and placing the article in a non-inert environment, allowing at least a portion the article to oxidize in the non-inert environment to form an oxidized layer on a surface of the article, and removing the oxidized layer (e.g., to smooth the surface of the article). The method can further include relieving stress in the article (e.g., via heating the article after additive manufacturing).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.