FIELD: mechanical engineering: methods of surface strengthening of metals.
SUBSTANCE: the invention is pertaining to the field of mechanical engineering, in particular, to the method of surface strengthening of metals. The technical result of the invention is improvement of the strength characteristics of the ruggedized surface and the increased productivity of treatment. The laser beam is polarized into the band with a variable intensity of emission and the scanning along this band is conducted so, that at heating of the treated surface segment the stages of the isothermal exposure are in series conducted at the different temperature levels, and the temperature variation is exercised at the optimal speeds for this metal.
EFFECT: the invention ensures improvement of the strength characteristics of the ruggedized surface of the metal and the increased productivity of treatment.
2 cl, 2 dwg, 1 tbl
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