Device for unfolding a shaped metal article and a method for unf

Details Device for unfolding a shaped metal article and a method for unf Device for unfolding a shaped metal article and a method for unf

1997-06-26

1999-07-20

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

By individually non-deforming clamps

72295, 72305, 723792, B21D 500

Patent

active

059243201

ABSTRACT:
In a device and method for unfolding a shaped metal article having a longitudinal bent or curved portion, the shaped metal article is unfolded along the bent or curved portion. The device is provided with a vacuum-type absorbing means for absorbing at least one side of the shaped metal article adjacent to the bent or curved portion. The one side of the shaped metal article is unfolded against the other side of the shaped metal article about the bent or curved portion.

REFERENCES:
patent: 2716805 (1955-09-01), Reed
patent: 2802509 (1957-08-01), Anderson et al.
patent: 3712106 (1973-01-01), Holsapple
patent: 4091938 (1978-05-01), Trolle
patent: 4187711 (1980-02-01), Lavochkin

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