Method of and machine for forming compound curvatures in metal s

Details Method of and machine for forming compound curvatures in metal s Method of and machine for forming compound curvatures in metal s

1990-12-10

1992-02-11

Crane, Daniel C.

Metal deforming

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

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

72307, B21D 506

Patent

active

050866354

ABSTRACT:
An improved method of and apparatus for forming sheet material into compound curves by drawing, in which critical positioning, dimensioning and relative curvatures of forming bead stages are provided for such curvatures as sectors of paraboloidal antenna reflectors and other compound curve sheets.

REFERENCES:
patent: 2395651 (1946-02-01), Anderson
patent: 2480826 (1949-09-01), Anderson
patent: 2851080 (1958-09-01), Anderson
patent: 2935115 (1960-05-01), Anderson
patent: 2954066 (1960-09-01), Anderson
patent: 2960140 (1960-11-01), Anderson
patent: 3958436 (1976-05-01), Anderson
General Dynamics/Fort Worth Applied Manufacturing Research and Process Development Company for The United States Air Force, "Final Report on Effects of Androforming on Material Properties", published Nov. 1963, pp. 50-52.

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