MEASUREMENT AND VERIFICATION OF DEEP DRAWING FORCE IN CASE OF NON-SYMMETRIC PARTS
Deep drawing of complex, non-symmetric shapes is often related with problems with wrinkling and excessive thinning. Draw beads can be useful addition to drawing tool in such situations but its shape and positions are difficult to determine in advance. In this paper we describe experimental procedure of deep drawing force measurement in order to verify numerical simulation of deep drawing process of non-symmetric part using draw beads. Forces obtained by numerical simulations are compared with the ones obtained by specially developed resistance strain gage force sensors. We have analysed results and gave some recommendations.