Friction stir welding method
AssigneeOsaka University
InventorsHidetoshi FUJII, Muneaki MUKUDA, Yoshiaki MORISADA
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Abstract
The present invention provides a simple and efficient friction stir welding method that, in addition to enabling localized friction stir welding, makes it possible to obtain a smooth friction stir surface and increase tool lifespan. This friction stir welding method is characterized in that the tip end of a tool that is rotated at a prescribed speed is pressed into a material to be welded, a stir portion is formed by moving the tool in an arbitrary welding direction, and the tool is slanted toward the retreating side relative to the welding direction.
Claims10
A friction stir welding method characterized by:
- pressing a tip end of a tool that is rotated at a prescribed speed into a material to be welded,
- forming a stir zone by moving the tool in an arbitrary welding direction, and
- slanting the tool toward the retreating side relative to the welding direction during the moving.
Dependencies are inferred from the claim text.