Method and device for butt welding metal sheets by means of a laser beam
US5399834A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1993 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Jul 21, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The subject of the present invention is a method for butt welding metal sheets (1, 2) by means of a laser beam, characterized in that a lateral pressure F directed towards the joint plane (3) of the metal sheets (1, 2) is exerted on the metal sheets (1, 2) to be welded in order that the contact pressure between the said metal sheets, at any point in the region of the joint plane (3), lies between 0.05 times the elastic limit of the metal sheet (1 or 2) having the lower elastic limit and the buckling pressure of the metal sheet (1 or 2) having the minimal buckling pressure and a welded seam is produced in the region of the joint plane (3) by local melting of the said metal sheets (1, 2) by means of the laser beam. The subject of the invention is also a welding device for implementing this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.