Rotary holding device for gripping tool material at elevated temperatures through multiple collar assembly
US8241556B2 · kind B2 · utility
12Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jul 21, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/1255
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool is provided that is capable of friction stir processing, friction stir mixing, and friction stir welding of high melting temperature and low melting temperature materials, wherein the collar is now divided into at least an inner and an outer collar coupled to the shank and the FSW tip, wherein new thermal barriers enable expansion of the inner collar to be directed inward to thereby create compression on the FSW tip instead of allowing the FSW tip to become loose in the tool at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.