Method for forming a sector for a nacelle lip skin
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United States of America Patent
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May 5, 2015
Grant Date -
Jul 7, 2011
app pub date -
Jun 19, 2009
filing date -
Jul 10, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Forming a sector for a nacelle lip skin from a sheet metal blank via punch by placing the blank against an outer surface of the punch and clamping a trailing edge of the blank in a clamping member that grips a trailing edge of the blank without slippage; gripping a leading edge of the blank, opposite the trailing edge, in a gripping device at a location axially spaced from the punch with sufficient force to permit the blank to flow therethrough in a controlled manner; displacing the gripping device in a first direction, radially with respect to the punch while drawing the blank through the gripper; displacing the gripping device in a second direction, axially with respect to the punch, to draw the blank over the leading edge of the punch and through the gripping device.
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