FIELD: process engineering.
SUBSTANCE: proposed device comprises focusing lens (1), casing (2), branch pipe (3) for laser beam to pass there through at preset aperture angle and nozzle (5) arranged around aforesaid branch pipe and inclined to the lens optical axis to form gas supersonic jets. Branch pipe (3) has annular grooves (4) to make chamber for gas to be distributed between the nozzles. Axes of nozzles (5) intersect the lens axis at the point which makes that of intersection between processed surface and focusing lens axis to exploit entire kinetic power of supersonic jets onto processed surface.
EFFECT: higher efficiency of processing due to increased efficiency of gas mix effects.
1 dwg
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