Forming apparatus

Details Forming apparatus Forming apparatus

1975-06-19

1976-08-24

Hall, Carl E.

Metal deforming

With exposure of work to gas, vapor, mist, or modified...

72 56, 72 60, 72344, B21B 900

Patent

active

039759369

ABSTRACT:
Apparatus for forming hollow metal articles such as aluminum reflectors for Luminaires. The apparatus comprises a convex forming punch movable into a complementary hollow magnetic forming coil device. The forming punch is mounted on a base having an annular slot opening at the periphery of the forming punch and being connected to passages in the base for quickly evacuating the air between the workpiece and the punch prior to the magnetic forming operation.

REFERENCES:
patent: 3238753 (1966-03-01), Benatar et al.
patent: 3581541 (1971-06-01), Wildi
patent: 3646792 (1972-03-01), Hertel et al.

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