|発明の名称||JOINING METHOD AND JOINING DEVICE|
PROBLEM TO BE SOLVED: To provide a joining method and a joining device capable of reliably joining material to be joined such as metal plates by utilizing friction stir.
SOLUTION: A joining device for joining material to be joined by using a tool 14 provided with a probe 14b to be penetrated into material 12, 13 to be joined includes a driving device which penetrates a probe 14b into the material 12, 13 to be joined while rotating the tool 14 and a mold 10 provided with a forming recessed material 10a which supports the material 12, 13 to be joined upon joining operation and forms a top end part of the probe 14b penetrated into the material 12, 13 to be joined into a larger size than the probe 14b.
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