FIELD: metallurgy.
SUBSTANCE: ultrasonic relaxation-hardening treatment of welded seams consists in static loading welded seams and in ultrasonic effecting welded seam with ultrasonic apparatus- wave guide by means of acoustic system. Also the welded seam is effected with ultra sound by means of piezo-ceramic acoustic system when sinusoidal amplitude-modulated ultrasonic oscillations are transferred onto it.
EFFECT: efficient removal of residual stresses, improved fatigue durability, contact rigidity, wear and corrosion resistance and reliability of welded connection.
1 ex, 1 tbl, 2 dwg
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| ULTRASONIC TOOL FOR RELEASING RESIDUAL STRESSES AND STRENGTHENING SURFACES OF METALS | 2004 |
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