Sheet Thinning Prediction in Single Point Incremental Forming
Incremental forming processes are characterized by a well known and particular feature: any deformation across the sheet plane determines sheet thinning, since the blank is fully clamped by means of a proper equipment. As a consequence, the availability of effective and reliable CAE tools capable to supply an accurate prediction of sheet thinning as a function of process parameters, represents a strong requirement for a wider practical application of incremental forming. The already available theoretical models (i.e. the sine law) do not provide, on the other hand, satisfactory results. Therefore in the paper a couple of numerical analysis strategies was applied to simulate simple incremental forming processes, as well as a proper experimental equipment was developed to verify the accuracy of the numerical predictions.
M. Geiger, J. Duflou, H.J.J. Kals, B. Shirvani and U.P. Singh
G. Ambrogio et al., "Sheet Thinning Prediction in Single Point Incremental Forming", Advanced Materials Research, Vols. 6-8, pp. 479-486, 2005