Method for friction stir welding using spindle-in-spindle
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United States of America Patent
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May 7, 2013
Grant Date -
Dec 22, 2011
app pub date -
Aug 30, 2011
filing date -
Jan 24, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A spindle head for performing friction stir welding includes concentric spindle shafts driven by stacked, coaxial motors contained within a spindle housing. The coaxial arrangement of the motors results in a more compact package. Each of the motors is concentrically arranged around one of the spindles by directly connecting a rotor of the motor to a spindle shaft. The stators of the motors are mounted on the housing and are concentrically arranged around the concentric spindle shafts.
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