Punch press with cutting torch

Details Punch press with cutting torch Punch press with cutting torch

1976-10-22

1977-12-13

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

219121P, 219158, 266 48, 266 65, B23K 900

Patent

active

040630595

ABSTRACT:
Small and regularly shaped holes are formed in a workpiece by the punch of a punch press while large and irregularly shaped holes are formed by a plasma-arc torch attached to the punch press. Fumes and molten metal resulting from operation of the torch are directed into an upright duct which underlies the workpiece, the upper end of the duct engaging the workpiece to prevent deformation thereof. When the punch is operating, the upper end of the duct is retracted downwardly to provide clearance for movable clamps which grip and position the workpiece.
Additional fumes are collected in and sucked from a shroud which encloses the tip of the torch and which carries a collar for establishing the stand-off height of the torch.

REFERENCES:
patent: 499519 (1893-06-01), Coffin
patent: 2030050 (1936-02-01), Coberly
patent: 2768278 (1956-10-01), Gaines
patent: 3666249 (1972-05-01), MacLeod, Jr.
patent: 3743260 (1973-07-01), Alleman et al.
patent: 3944203 (1976-03-01), Brekelbaum

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