Calculation of process parameters of pieces containing irregular lateral cuttings, which forming leads to such defect as "corrugation forming"

The paper considers the calculation of such parameters as deformation, thinning, stress and pressure demand of forming of irregular lateral cutting. It proposes the solution to eliminate such defect as "corrugation forming" caused by forming of this cutting representing a movable holder. It compares the results with finite element analysis of forming. The paper makes the conclusion on the possibility of applying the suggested calculation. (paper)