Ring tool unit, method for manufacturing the same, sleeve, and mandrel
US9895758B2 · kind B2 · utility
0Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Mar 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/501804
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An object is to prolong the life of a ring tool, and improve the productivity of a welded pipe. A ring tool unit is held in a downstream-side end portion of a mandrel to be inserted into a welded pipe currently being manufactured from the upstream side of a welding position, and is used as a cutting tool for continuously cutting a bead produced on the inner surface of the welded pipe, wherein the ring tool unit is formed by fitting a ring tool having a ring-like blade in a sleeve having a circular hole for holding the outer circumference of the ring tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.