Hybrid laser arc welding process and apparatus
US8253060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Apr 13, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2240/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A welding method and apparatus for welding workpieces together by conducting a laser beam welding process on a joint region that includes a weld seam defined by and between faying surfaces of the workpieces, and then conducting a hybrid laser arc welding process on the joint region. The laser beam welding process entails causing a first laser beam to travel along the joint region, penetrate the weld seam and form a weldment. The hybrid laser arc welding process remelts the weldment by simultaneously causing an electric arc and a second laser beam to overlap and travel along the joint region and form a weld pool in the weldment. On cooling, a weld joint is formed within the joint region and its weld seam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.