Metal deforming – By deflecting successively-presented portions of work during... – With cutting of work or product
Patent
1991-03-15
1992-09-01
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
With cutting of work or product
72181, 72176, 83428, B21D 508
Patent
active
051428946
ABSTRACT:
A method and apparatus is provided for making three-dimensional metal parts with complex shapes such as skis, automotive trim, and other like elongated parts. The method includes uncoiling an cutting off segments of coiled stock to form a part blank, and mounting the part blank on an elongated jig with opposite sides of the part blank extending outwardly from the jig. The method further includes the steps of slitting the part blank to a predetermined symmetrical but non-uniform width by passing the jig past slitting heads, and roll-forming the slit blank in a similar manner. In the preferred embodiment, the method also includes controlling the vertical rotation of the slitting heads and the roll-forming heads. The apparatus includes a machine for making three-dimensional articles having complex non-uniform lateral cross-sectional shapes along the length thereof. The machine includes slitting heads and/or roll-forming heads adapted to laterally converge and diverge and also rotate about vertical axes. The heads are positioned in a laterally spaced apart relationship to receive a part blank holding jig so that the heads slit and form the blank as the jig is translated past the heads. The lateral and vertical rotating movement of the heads in controlled to assist in shaping the part.
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Contour Roll Company
Crane Daniel C.
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