FIELD: mechanical engineering; instrumentation engineering; repair of surface and under-surface defects in metals and alloys in form of pores and micro-cracks of structural and technological nature.
SUBSTANCE: proposed method consists in revealing defects and forming flaw-free zone by repeated action on section under test by laser beam at simultaneous monitoring of quality; flaw-free zone is formed by melting the surface layer at simultaneous active location of near-surface layer of section treated by surface acoustic waves arising on section being treated at generation of laser plasma; generation of laser plasma is monitored till reaching preset minimum of amplitude difference of two adjacent pulses of acoustic waves, after which surface is again shifted relative to laser beam. Laser beam is simulated in space in plane of focusing on surface of metal.
EFFECT: hardening of metals at hidden flaws; increased productivity.
2 cl, 2 dwg, 1 tbl
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