Method and device for induced localized electrodeposition on back side of thin-walled workpiece through laser irradiation
US12241174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2022 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | May 31, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D17/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method used to repair a workpiece through a combination of laser and an electrochemical reaction is provided. A tool anode is arranged on the back side of the workpiece and is spaced therefrom. A laser beam is focused on an outer surface of the workpiece to realize localized repairing on the back side. The method realizes localized coating repairing on the back side of the workpiece through coordination between the thermal effect of the laser and the electrochemical deposition based on the characteristic of high thermal conductivity of the workpiece. The electrodeposition reaction does not occur in regions that do not need to be repaired. The operating process is simple, the cost of the plating solution is largely reduced, and the problem that the coating on the inner wall of the thin-walled workpiece is difficult to repair due to stripping is solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.