Strengthened 3D printed surface features and methods of making the same
US11970421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2019 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | May 20, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/315
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Glass articles including one or more 3D printed surface features attached to a surface of a substrate at a contact interface between the 3D printed surface feature and the surface. The 3D printed surface feature(s) include a glass or a glass-ceramic, a compressive stress region at an exterior perimeter surface of the 3D printed surface feature(s), and a central tension region interior of the compressive stress region. The 3D printed surface feature(s) may be formed of a contiguous preformed material 3D printed on a surface of a substrate. The compressive stress region of a 3D printed surface feature may be formed using an ion-exchange process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.