Simplified method for welding 5G position filler layer of marine riser and product thereof
US12304006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2024 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | May 23, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A simplified method for welding a 5G position filler layer of a marine riser and a product thereof are provided, and the disclosure belongs to the technical field of welding. The method specifically includes the following. performing filler welding on the marine riser using an oscillation scanning laser-GMAW hybrid welding process; performing welding on each layer using same process parameters, then reducing gravity of a molten pool and increasing an arc force through interaction between laser and an arc, meanwhile expanding a range of a welding molten pool through an oscillation scanning behavior of the laser beam. A lack-of-fusion defect is prevented from being generated. A 5G position filler layer welding process of the marine riser is effectively simplified in the disclosure. Further, laser beam scanning also expands the range of the welding molten pool and prevents generation of the lack-of-fusion defect on a side wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.