Device and method for forming by stamping at high speed
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United States of America Patent
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Apr 25, 2017
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N/A
app pub date -
Dec 18, 2013
filing date -
Dec 21, 2012
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Abstract
A device and a method for forming by stamping a curved metal sheet. The device includes a punch made of deformable and substantially non-compressible material, a hammer configured to strike the punch along the longitudinal axis Z. A generator to generate a magnetic field configured to impart on the hammer a speed greater than a predetermined speed in the Z direction. The device further includes a matrix of predetermined shape, approximately rotationally symmetrical about the longitudinal axis Z. The punch is rotationally symmetrical about the longitudinal axis and configured to be disposed in front of the matrix. The punch has a longitudinal dimension in the same order of magnitude as its dimension perpendicular to the longitudinal axis Z.
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