engleski

Mathematical model of medium contact stress during cold rolling of thin and ultralight gagestrips

Based on the results of studying a joint solution of the Karman equation using a new model of friction stresses, the dependences of the stress state coefficient nσhave been constructed in the range of the parameter l/hav from 4 to 100, which corresponds to the conditions of rolling thin and ultralight gage strips. As a result of approximation of the obtained dependencies, an updated mathematical model of the stress state coefficient has been proposed. Model (1) is valid for fl /hav≤2, 25–2, 40 and is recommended for the calculation of the average contact normal stress рavduring cold strip rolling.

ultralight gagestrips ; cold roling ; medium contact stress ; mathematical model

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