Maryland's Defense Patent Database

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Electrically assisted friction stir welding

Patent image
NSWCCD

An electrically assisted friction stir welding method and arrangement in which the required downward/pressing force typically exerted on a workpiece is substantially reduced. The method and apparatus involves the creation of a localized heated zone on a workpiece undergoing a welding operation. The localized heated zone is created using a resistive heating circuit running through the friction stir welding tool and the workpiece.

Inventors: 
Ferrando, William A.
Patent Number: 
Technical domain: 
Machine Tools
FIle Date: 
2008-03-31
Grant Date: 
2012-04-24
Grant time: 
1,485 days
Grant time percentile rank: 
27
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY