Laser ablation for the environmentally beneficial removal of surface coatings
US11338391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2018 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Aug 30, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/34
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser-based method of removing a coating from a surface comprises directing a laser pulse to a first position on the surface, removing the coating from the first position by rapidly elevating a surface temperature of the first position using the laser pulse and thereby disassociating the coating from the surface and collecting the disassociated coating. In some embodiments, the coating comprises an environmentally harmful substance such as Hexavalent Chromium. In some embodiments, the coating comprises Diamond-Like Carbon (DLC), Vitrified Contaminant Material (CMAS). The disassociated coating is collected by a waste collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.