Method and apparatus for the bending of workpieces
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United States of America Patent
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Apr 16, 1991
Grant Date -
N/A
app pub date -
Nov 9, 1988
filing date -
Nov 19, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method for the bending of workpieces by swivel bending jaws, the bent-off part is to assume a predetermined bending angle with respect to the workpiece, for this purpose, in a first bending operation, at least one corresponding leg is to be bent off from the workpiece by means of the swivel bending jaws. Then, the swivel bending jaws are released from the leg and a springback of the leg or the actual bending angle is determined by direct measurements and compared with a set bending angle. Subsequently, an agreement is established between set bending angle and actual bending angle by a renewed bending operation, by a bending-over.
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