design of heading die (tungesten carbide die) for steel ball & fastener industry
please suggest us grade of tungesten carbide to manufacturing
1) steel ball dies
2) heading dies for stainless steel screw
3) heading dies for mild steel screw
4)extrusion die for mild steel screw
also suggest us manufacturing process for dies
(raw materials selection, heattreatment, shrinkfit, i.d. polishing etc.