Method for assembling fuel supply pipe, and fuel supply pipe assembly device
US9981342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2015 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Feb 10, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided are a method for assembling a fuel supply pipe of which a joint portion between a pipe body and a short cylindrical member has a high strength and which has high anti-corrosion performance, and a device for assembling the pipe. Specifically, while a laser beam in a defocused state is being emitted to impinge on an end portion of the pipe body that overlaps the short cylindrical member, the pipe body and the short cylindrical member are rotated through one complete turn relative to the laser beam, thereby melting the entire periphery of the end portion. While the laser beam in a defocused state is being emitted to impinge on the melted end portion, the pipe body and the short cylindrical member are rotated through at least one further complete turn, thereby joining by welding the end portion to the outer periphery of the short cylindrical member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.