Metal deforming – By deflecting successively-presented portions of work during... – By tension applied to work or product
Patent
1998-11-10
2000-04-04
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
By tension applied to work or product
72311, 723792, 72378, 761071, B21D 314, B21K 520
Patent
active
060446803
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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Conception et Developpement Michelin
Crane Daniel C.
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