Patent ID: 6824624
Filing Date: 2004-11-30
Classification: B23K,Y10T

Abstract:
A method of oxygen cutting a piece of steel, in which a cutter member is moved in such a manner that the cutter jet is directed towards a first face of the piece in order to attack said face in a substantially vertical direction so as to form a slot, and synchronously therewith a trimmer member and a spray member are moved in such a manner that their respective jets are directed towards a second face of the piece, opposite from its first face, attacking said second face in an oblique direction at the cutter jet exit, so as to trim the cutting bead being formed on said second face while simultaneously reducing smoke emission, said trimmer and spray members being carried by a blade-shaped support passing through the cut slot, wherein at least one pressurized fluid jet is projected directly into the cut slot and into the portion thereof which lies between a cutting front and the blade-shaped support, said jet forming a barrier protecting said blade-shaped support against particle projections during advance of the support along the cut slot.