Inert gas-assisted laser machining of ceramic-containing articles
US11524365B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Oct 31, 2019 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/52
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An article includes a ceramic material and features a machined surface that is characteristic of cold ablation laser machining, and the machined surface exhibits no visible oxidation. A laser machining apparatus and technique is based on cold-ablation, but is modified or augmented with an inert assist gas to minimize deleterious surface modifications and mitigate oxide formation associated with laser machining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.