Method of producing seamless tube mill piercer mandrel
US3990330A · kind A · utility
0Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | May 8, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49927
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laminate tube structure produced by stretch reducing, in combination, a pair of tubes. The resultant tube structure is particularly adapted for use as a mandrel for supporting a piercing point of a seamless-tube mill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.