| The process of deep drawing complex, quickly and without defect are the ideal thing which is willed by manufacturing industries. Defects in the process of deep drawing influenced by many parameter. To produce an optimal product, trial and error methods will spend a lot of the cost and time. More development are currently done on the finite element method in finding defects in complex products. In this research, the above issues will be answered by performing the simulation of deep drawing process that can be analyzed the occurrence of defects wrinkling, tearing, and poor surface appearance with varied of parameters blank holder force (FBH) and also punch speed (VP). The formation of defects phenomenon observed, in order to avoid or minimize defects. The simulation process was done first by making measurements on deep drawing product which form as commercial aluminium saucepan with a different diameter. The outcome situation of pan a and b formed with FBH = 35 kN dan VP = 95 mm/s. At the same force and speed, both saucepans shows the depletion of surface on the bottom of the fillet for a small size and surface thinning on surface contact between die and punch for a bigger size. Wrinkling defects can be minimzed by improvement of FBH dan VP however with increasing VP cause increased punch force, production time more faster and surface thickness is lower compared with increasing FBH. Tearing defects occurred in excessive VP, preceded by poor surface appearance defects, which can be observed with increasing thickness changes are significant. |