Patent ID: 11865610
Assignee: KOBE STEEL, LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A method for joining an aluminum material, the method comprising, in the following order:
arranging a first wrought aluminum alloy material along a first jig in an internal space between the first jig and a second jig that is arranged to face the first jig and has a molten aluminum introduction port;
introducing molten aluminum toward the first wrought aluminum alloy material through the introduction port under pressure to cause the molten aluminum to collide with an inner surface, facing the internal space, of the first wrought aluminum alloy material, thereby removing a fraction of the first wrought aluminum alloy material at a collision position between the molten aluminum and the inner surfaces of the first wrought aluminum alloy material to form a reduced thickness portion on the inner surface of the first wrought aluminum alloy material around the collision portion; and
flowing the molten aluminum together with a fraction of the first wrought aluminum alloy material removed around the collision position within the internal space along the inner surface of the first wrought aluminum alloy material.