Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1995-01-31
1997-09-16
Crane, Daniel C.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72164, 72205, B21D 105
Patent
active
056668368
ABSTRACT:
A process for planishing under traction a thin metal strip in an installation including a planisher comprising at least one bending unit with two planishing sets and a multi-roller leveling assembly comprising two rows of rollers. The imbrication of the planishing sets and the multi-roller leveling assembly and two tension blocks, respectively, are adjusted upside and downside to obtain a prescribed elongation of the strip. Flatness faults in the planisher are corrected by adjusting the through-speeds and imbrication of the planishing sets, such that the prescribed elongation for planishing is substantially attained by the time the strip leaves the planisher. At least longitudinal camber faults due to the passage in the planisher are corrected in the multi-roller assembly by setting up degressive imbrications of the rollers between the input and output of the multi-roller assembly by swinging one row with respect to the other so as to cause progressively diminishing reverse bending effects without substantially increasing the elongation already produced in the planisher by traction-bending.
REFERENCES:
patent: 3326026 (1967-06-01), Guillot
patent: 3327509 (1967-06-01), Roesch
patent: 4881392 (1989-11-01), Thompson
Patent Abstracts of Japan JP4138821.
Patent Abstracts of Japan JP1317620.
Patent Abstracts of Japan JP58116931.
Bonnefont Marc
Padwo Zalman
Peyron Jean-Baptiste
Sabatier Paul
Clecim
Crane Daniel C.
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