Invention Grant
- Patent Title: Electrically assisted friction stir welding
- Patent Title (中): 电动摩擦搅拌焊接
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Application No.: US12082190Application Date: 2008-03-31
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Publication No.: US08164021B1Publication Date: 2012-04-24
- Inventor: William A. Ferrando
- Applicant: William A. Ferrando
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Secretary of the Navy
- Current Assignee: The United States of America as represented by the Secretary of the Navy
- Current Assignee Address: US DC Washington
- Agent Dave A. Ghatt
- Main IPC: B23K11/00
- IPC: B23K11/00

Abstract:
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.
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