Method for using modifiable tool control parameters to control the temperature of the tool during friction stir welding
US7909231B2 · kind B2 · utility
8Cited by
2References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 11, 2009 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Aug 11, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/1235
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A new control variable is introduced, that when combined with previous dependent control criteria on other variables results in a control program that can create a superior weld while minimizing wear on the FSW tool, wherein the tool repeatedly experiences the same thermal and mechanical loading within specified control windows during every repeated weld sequence because flow stresses and tool loads are driven by temperature, and dependent control loops account for differences in material and heat that is transferred at different rates in varying locations throughout a friction stir weld.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.