Friction stir welding tool and friction stir welding apparatus
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United States of America Patent
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Apr 27, 2010
Grant Date -
Jun 5, 2008
app pub date -
Nov 6, 2007
filing date -
Nov 6, 2006
priority date (Note) -
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Abstract
An object of the present invention is to provide a friction stir welding tool which enables friction stir welding of a wide range of materials, from low-melting temperature metallic materials including aluminum to high-melting temperature metallic materials including steel.. It is desirable that the Mo alloy be composed of 6.0 to 10.0 mol % of Si, 10.0 to 20.0 mol % of B, and 20 to 60% of Mo-phase volume content. This Mo alloy tool has excellent high-temperature strength and wear-resistance properties and hardly deform and wear when used for the welding of steel.
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