Method of producing cold-worked centrifugal cast tubular products
US8479549B1 · kind B1 · utility
15Cited by
18References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2010 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | May 18, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D13/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of producing a seamless, tubular product includes centrifugally casting a corrosion resistant alloy into a tubular workpiece having an inner diameter and an outer diameter. The method then removes material from the inner diameter of the workpiece and subjects the workpiece to at least about a 25% wall reduction at a temperature below a recrystallization temperature of the workpiece using a metal forming process. The metal forming process includes radial forging, rolling, pilgering, and/or flowforming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.