Friction stir welding interlocking joint design and method
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United States of America Patent
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Apr 4, 2000
Grant Date -
N/A
app pub date -
Mar 4, 1998
filing date -
Mar 4, 1998
priority date (Note) -
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Abstract
The present invention provides novel joint designs and methods for holding together and drawing together interface edges of workpieces during friction stir welding. The method includes providing an interface edge (30A) on a first workpiece (20A), and an interface edge (30B) on a second workpiece (20B) that is complementary with the interface edge of the first workpiece. The interface edges cooperate with consumable pins (38) to hold the first and second workpieces together. In a preferred embodiment, the interface edges cooperate to draw the first and second workpieces together when a load in a direction normal to the interfaces is applied along the mated interfaces.
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