Automated forming apparatus
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United States of America Patent
Stats
-
May 15, 1990
Grant Date -
N/A
app pub date -
Dec 2, 1988
filing date -
Dec 2, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To form longitudinally spaced pairs of angularly spaced stops in the walls of fuel rod-positioning ferrules utilized in nuclear fuel bundle spacers, the ferrules, cut from tubular stock, are longitudinal oriented in a first station and angularly oriented in a second station using a reference notch cut in one ferrule edge. Successive ferrules are picked from the second station and placed in a die of a punch press. Ferrule exterior surface back-up is provided by the die upon closure, and interior surface back-up is provided by a mandrel inserted in the ferrule bore as the punches converge into stop-forming engagement with the ferrule wall. Formed ferrule discharge is induced by placement of the next ferrule in the die.
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