Experimental and Numerical Investigation on Effects of Pin Diameter on Multi-Point Forming

Multi-point forming (MPF) is an advanced and flexible method to form sheet metal workpieces. Although there are studies investigating different aspects of this method, the on effects pin diameter contact MPF insufficient. In study, pins with diameters 10, 12, 14 mm were used investigate damage factor, effective stress distribution, required loads three forms aluminum 1100 parts in finite element simulations. addition, experimental works conducted for 12 thinning points formed compared The provided highest distributions factors 0.448, 0.770, 0.329 obtained form1, form2, form3, respectively. percentage errors between simulations using calculated as 7.4, 5.1, 2.4% all 1 3. conclusion, was shown have significant process. Larger resulted higher tearing metal.