Electron beam welding method
US9162316B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Jul 20, 2011 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jun 15, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K15/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electron beam welding method capable of restoring toughness even when high heat input welding is performed. The electron beam welding method comprises: forming a first weld bead (3) so as to include a groove (2) provided at the butt portions of two base materials (1), and forming a second weld bead (4) and a third weld bead (5) having a narrower width than the first weld bead (3), at predetermined positions displaced from the groove (2) and centered symmetrically about the butt portions so as to include a portion of the first weld bead (3), using a lower heat input than that used during formation of the first weld bead (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.