FIELD: metallurgy.
SUBSTANCE: preliminary construction of calibration curve of dependence of cutting depth of specimen of the specified metal or its alloy on parameters of incident laser radiation to surface is performed at monotonic increase in specific power of laser radiation from value of 0.1 J/cm2·s to the value at which through cutting occurs. Then, metal or its alloy is molten-through along cutting line with laser beam by moving the laser beam progressively at speed V, and at the same time its rotation with radius R is performed. Radius R and angular rotation speed of laser beam ω is chosen considering the cut width and radius of laser beam.
EFFECT: high cutting speed at effective use of laser beam energy.
4 cl, 3 dwg, 1 ex
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