Piercing and flanging apparatus

Details Piercing and flanging apparatus Piercing and flanging apparatus

1977-01-19

1978-02-14

Larson, Lowell A.

Metal deforming

With cutting

By composite tool

83 82, 83623, B21D 3712, B21D 4500

Patent

active

040731766

ABSTRACT:
Apparatus is provided for piercing and flanging a metal workpiece. The apparatus includes a punch and a back-up die with the punch driven by a hydraulic ram. The punch, die, and ram are mounted on a frame which is movably carried by a main support. A workpiece support is affixed to the main support and positions the workpiece between the punch and the die. The ram moves the punch toward and away from the workpiece relative to the frame and also causes the frame to move relative to the workpiece. This arrangement enables the punch and die to seek operative positions relative to the workpiece without the necessity of the workpiece being precisely positioned. The punch and die are also designed to be reversed to provide the opposite operation on the workpiece, if desired.

REFERENCES:
patent: 2594506 (1952-04-01), Sharpe
patent: 2701018 (1955-02-01), Glitsch
patent: 2758652 (1956-08-01), Novinger et al.
patent: 3893358 (1975-07-01), Dixon

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