Method of measuring camber

Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element

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72164, 83367, 83370, 83 72, 33141R, 33142, B21C 5100, B26D 500, G01B 312, G01B 728

Patent

active

047947730

ABSTRACT:
A method of measuring camber in a sheet of metallic material comprises the steps of displacing the sheet between fixed guides in a plane perpendicular to the width of the sheet such that a point on a center of the sheet travels a predetermined distance, measuring the length of the sheet adjacent a first longitudinal edge thereof which moves past a datum line when the sheet is displaced the predetermined distance and generating a signal having a value A proportional to the length, measuring a length of the sheet adjacent to a second, opposite longitudinal edge which moves past the datum line when the sheet is displaced the predetermined distance and generating a signal having a value B proportional to the second edge length, and calculating camber at the first edge, expressed as a radius of curvature R.sub.C of the sheet, by the equation: ##EQU1## where W equals the width of the sheet.

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patent: 4144782 (1979-03-01), Lindstrom
patent: 4255999 (1981-03-01), Davis
patent: 4454738 (1984-06-01), Buta
patent: 4528756 (1985-07-01), Ichihara
patent: 4541317 (1985-09-01), Van Humbeeck et al.
patent: 4635458 (1987-01-01), Bradlee

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