FIELD: automotive industry; manufacture of aluminium alloy wheels. SUBSTANCE: wheel is strengthened by treatment with metal balls in flow of transformer oil at pressure of 0.3-0.6 atm, at oil temperature of 40-60 C. Time taken for straightening area not exceeding 10 mm in diameter is not less than 2 min, and diameter of metal balls is 1.5-2.0 mm. EFFECT: enlarged operating capabilities.
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