Process and apparatus for rolling structural shapes

Details Process and apparatus for rolling structural shapes Process and apparatus for rolling structural shapes

1989-02-15

1990-07-24

Crane, Daniel C.

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflector arranged to bend work transversely of...

72224, 72234, B21B 112

Patent

active

049427539

ABSTRACT:
In the fabrication of H-piles, I-beams, channels, tees, angles, double-tee structural shapes and similar rolling stock, a first structural shape segment or web is joined to at least one second structural shape segment or flange which may be bent outwardly. After the edging passes, during finishing, the flange or flanges are bent inwardly when the shape or stock is subjected to a final bending pass. A new bending method uses the principle of a three-roll bending process. An alternative bending solution includes a bending process with backup rolls for the first structural shape segment or web which do not touch the inner surfaces of the flanges or second structural shape segments.

REFERENCES:
patent: 1385644 (1921-07-01), Roberts
patent: 1812246 (1931-06-01), Oberg
patent: 1856269 (1932-05-01), Schulz et al.
"Die Technik des Eisenhuttenwesens", 5th Edition, 1944, Verlag Stahleisen Dusseldorf, pp. 177-178.
"Hutte, Taschenbuch fur Eisenhuttenleute", 5th Edition, 1961, Verlag von Wilhelm Ernst & Sohn, Berlin, pp. 762-768 and pp. 922-925.

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