Abstract Deep-drawing is one of the most important
methods used to form sheet metal. The radius of die/blank
holder and punch is important for deep-drawing dies
because of an effective way to promote deep drawability
sheet metal. This paper presents an attempt to determine the
effect of various radiuses of die and punch on the limit
drawing ratio and was investigated using DIN EN 10130–
91 sheet metal. The die/blank holder profile with angles of
α=0°, α=2.5°, α=7.5°, α=12.5°, α=15° and die/punch
profile with radiuses for R=10, R=8, R=6, R=4 and R=
0 mm were analyzed to determine the influence of punch
force on the limit drawing ratio. The aim of this study is to
investigate the effect of radius and angle variables on
drawability in the deep-drawing process and to obtain
useful data from the industrial field. The experiments show
that the limit drawing ratio increased with increasing radius
of punch (R), die/blank holder angle (α).
Keywords Deep-drawing . Limit drawing rati