Rotary-draw bending mandrel with galling-resistive inserts
US9925577B2 · kind B2 · utility
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5References
8Claims
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Key dates
| Filing date | May 16, 2014 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Aug 16, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D9/03
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A galling-resistive insert is positioned on an outer surface of a mandrel assembly. The insert is secured at the outer surface of the mandrel assembly and functions to reduce galling of an inner surface of a tubular blank during a rotary-draw bending operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.