Hybrid friction stir welding for dissimilar materials through electro-plastic effect
A hybrid Friction Stir Welding approach and device for dissimilar materials joining employing Electro-Plastic Effect. The approach and device include an introduction of high density, short period current pulses into traditional friction stir welding process, which therefore can generate a localized softened zone in the workpiece during plastic stirring without significant additional temperature increase. This material softened zone is created by high density current pulses based on Electro-Plastic Effect and will move along with the friction stir welding tool. Smaller downward force, larger processing window and better joint quality for dissimilar materials are expected to be achieved through this hybrid welding technique.
- Research Organization:
- The Regents of The University of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- PI0000012
- Assignee:
- The Regents of The University of Michigan (Ann Arbor, MI)
- Patent Number(s):
- 9,981,338
- Application Number:
- 14/742,749
- OSTI ID:
- 1455186
- Country of Publication:
- United States
- Language:
- English
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