Friction stir welding method and manufacturing method of welding structure
US11141812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2018 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Nov 17, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/126
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A friction stir welding method in which a first member to be welded and a second member to be welded and having a first step portion are welded by friction stir welding using a welding tool includes the steps of arranging the first member to be welded on a step supporting surface of the first step portion with a gap between the first member to be welded and a side surface of the first step portion, pushing the welding tool into the first member to be welded from a surface of the first member to be welded while rotating the welding tool and inserting the welding tool until reaching the step supporting surface of the second member to be welded and stirring the first member to be welded and the second member to be welded by rotating the welding tool to form a welding part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.