Methods and systems for reducing tensile residual stresses in compressed tubing and metal tubing products produced from same
US7895875B2 · kind B2 · utility
5Cited by
11References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 30, 2007 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Jan 3, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21K21/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Methods and systems for reducing the stress state of compressed ends of compressed tubes are disclosed. The methods and systems may provide a reduced tensile residual stress state, or even a compressive residual stress state. Tube products produced from the same are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.