Apparatus and method for cutting holes in steel plates

Details Apparatus and method for cutting holes in steel plates Apparatus and method for cutting holes in steel plates

1981-09-18

1983-05-17

Stallard, W.

Metal treatment

Compositions

Heat treating

B23K 702, B23K 710

Patent

active

043838707

ABSTRACT:
Single or ganged cutting torches for steel plates preheat the center of each hole to be cut prior to any displacement of the torches. On completion of the preheating, the torches are laterally repositioned in correspondence with the common radius of the holes to be cut. Simultaneously, the torches begin to cut and motive means initiates and maintains circular movement of each of the torches commensurate with the circumference of the holes to be cut. Positioning means for locating each of the torches in the X-axis and for translating the torches en masse in the Y-axis are disclosed. Means for accommodating bowing of the steel plate along with means for setting the torches to cut various diameter holes at any bevel angle are described.

REFERENCES:
patent: 3387375 (1968-06-01), Nowotny
patent: 4012027 (1977-03-01), Hooper

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