FIELD: metal working. SUBSTANCE: critical temperature of the viscous-large transition of the construction material and the optimum sizes of the divided parts of the construction are determined before the construction division. After that narrow through notches are made in the construction member according to the marking. Local brittle fractures are generated near the ends of the through notches. The nonuniform cooling of the divided part of the construction is exercised. The division is fulfilled by means of the impulse excitation of the construction. The process is repeated the required dimensions are obtained. EFFECT: reduced labour intensity of works. 1 cl
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