Method for butt laser welding two metal sheets
US11806808B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Jan 28, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for butt laser welding two metal sheets includes providing a first metal sheet and a second metal sheet and butt welding the metal sheets along a direction of welding. The butt welding step includes simultaneously generating a first front keyhole in the first metal sheet, generating a second front keyhole in the second metal sheet, and generating a back keyhole in the first and second metal sheets. The first and second front laser beams and the back laser beam are configured in such a manner that at each moment in time, a solid phase region and/or a liquid phase region of the metal sheets remains between the first front keyhole and the back keyhole and between the second front keyhole and the back keyhole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.