Method and apparatus for bending an elongate workpiece

Details Method and apparatus for bending an elongate workpiece Method and apparatus for bending an elongate workpiece

1993-11-19

1995-06-20

Crane, Daniel C.

Metal deforming

With use of control means energized in response to activator...

Including plural sensors or sensor responsive to comparison...

72166, 72168, 72 65, B21D 1114

Patent

active

054252571

ABSTRACT:
A method and an apparatus for bending manufacturing of a long workpiece capable of manufacturing different sections of the workpiece in different bending radiuss, while preventing a buckling deformation in manufacturing small bending radius sections and a lowering of a productivity. A speed of sending out the workpiece is controlled to be lower for sections requiring larger bending per unit length, so as to prevent the buckling deformation, and to be higher for sections requiring smaller bending per unit length, so as to prevent the lowering of the productivity.

REFERENCES:
patent: 4061005 (1977-12-01), Kawanami et al.
patent: 4080815 (1978-03-01), Foster
patent: 4367641 (1983-01-01), Mizutani
patent: 4391116 (1983-07-01), Yogo
patent: 4624121 (1986-11-01), Kitsukawa et al.

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