Like plasma cutting, oxy-cutting is one of the first cutting technologies that Alma software was used for in the early 1980s. Alma has therefore a strong presence in industries that use thick sheet metal and with sub-contractors. Alma innovated very early on to optimize programming methods specific to oxy-cutting: multi-torch programming with smart nesting, bevel programming reduction of drilling on sheet metal, support of thermal requirements during cutting, etc.
Oxy-cutting is a cutting process that oxidizes the metal by projecting a jet of pure oxygen combined with a pre-heat flame (oxy-gas) for which gases like acetylene or tetrene are used. The oxygen jet is projected onto an area of the part that has been pre-heated to fusion temperature close to 1,300°. Cutting is performed via rapid oxidization by the oxygen jet, and not by the force of the jet. Combustion occurs in the cut area and throughout the whole thickness of the cut part. The oxides that form are mechanically eliminated by the cutting jet. The cutting quality depends on the purity of the oxygen.
Oxy-cutting is suitable for cutting thick and very thick sheets of unalloyed and low-alloyed steel (> 20 mm). Main advantages of this process: low cost of equipment and functioning, capacity to cut very thick parts, increase in productivity in multi-torch configuration, etc.
Oxy-cutting is used in particular in ship-building, boiler-making and steel frames.
The performance of almaCAM Cut in oxy-cutting is due in particular to the complete support of thermal constraints and machine specificities, as well as an effective combination of automation and the possibility for the user to intervene in specific situations.
Hierarchical nesting using priority groups to easily sort the parts during evacuation.