Process for the manufacture of metal tubes
US5709021A · kind A · utility
13Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1994 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | May 11, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4981
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A seamless metal tube is made by elongating an assembly of a tube blank and a metal core by mechanical working, and then stretching the core plastically so that it diminishes in diameter sufficiently to permit its removal from the tube. The core metal is preferably a shape memory alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.