Plasma cutting system

Details Plasma cutting system Plasma cutting system

1985-12-16

1987-06-02

Paschall, M. H.

Electric heating

Metal heating

By arc

219121PR, 219121PX, B23K 900

Patent

active

046706402

ABSTRACT:
Apparatus for cutting a metallic body in a predetermined and repeating pattern. A plasma torch and the metallic body are moved relative to each other. The relative movement includes a cutting relative movement in accordance with the predetermined pattern and a return relative movement in accordance with a repeat of the predetermined pattern. The metallic body serves as an operating anode during the cutting relative movement while a holding anode is provided for use during the return relative movement. The plasma torch is positioned in plasma retaining relation with the holding anode during the return relative movement. In a preferred embodiment, the power to the plasma torch is reduced during the return relative movement.

REFERENCES:
patent: 3290723 (1966-12-01), Jaques et al.
patent: 3353060 (1967-11-01), Yamamoto et al.
patent: 3562486 (1971-02-01), Hatch et al.
patent: 3584184 (1971-06-01), Tylko et al.
patent: 4063059 (1977-12-01), Brolund et al.

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