Pancake die
A pancake die is a simple type of manufacturing die that performs blanking or piercing. Many dies perform complex procedures simultaneously such as coining, piercing, forming, bending in addition to product removal and transport. A pancake die may only perform one simple procedure with the finish product being removed by hand.
An example would be a die that performs blanking of round paper gaskets without holes. This type of die would be created in one simple pass from a wire EDM after heat treating. The workpiece would then produce the punch and the die after the cut is complete. Additional work would then include adding a stripper plate to the punch plate after the punch has been mounted. At this point the pancake die is ready for production.
