Machining of sheet without removal of material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 4, 2000
Grant Date -
N/A
app pub date -
Nov 10, 1998
filing date -
Nov 13, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and device for machining a sheet contains a jaw equipped with two plates mounted opposite each other in order to delimit a calibration opening between said plates in which it is possible to vary the spacing between plates. A clamp is provided for grasping the sheet, and the clamp is moved in relation to said plates. The movement of the clamp and the relative position of said plates is coordinated, so as to slide the sheet in relation to said plates while the distance between said plates is controlled. The process includes pulling the sheet by one end so as to separate an initial section from the plane containing the calibration opening and thus pass the sheet through the calibration opening while the plates are kept supported against said sheet, so as to vary continuously the thickness of the sheet while the sheet is passed through the calibration opening.
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