Draft angles
◦ Facilitate the removal of part from the die
◦ Internal angles about 7 – 10 degrees
◦ External angles about 3 – 5 degrees
Radial for corners and fillets
◦ Selected carefully to ensure smooth flow of the metal in
the die cavity and improve die life
◦ Small radial -> wear
◦ Stress concentration and thermal cycling
◦ Rule = radial as large as permissible by the design