Expandable member with wave inhibitor and methods of using the same
US10010983B2 · kind B2 · utility
0Cited by
256References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2009 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Oct 5, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21J15/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A member has a wave inhibitor adapted to control the effects of a wave of longitudinally displaced material positioned ahead of an expansion mandrel used to expand the member. The wave inhibitor has a decreasing transverse cross-sectional area to diminish the effects attributable to the wave, such as workpiece distortions, material upset of the workpiece, lengthening of the member, and excessively high strains in the workpiece. The wave inhibitor can also induce radially compressive stresses in the workpiece and produce an interference fit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.