Dies :-
Made up of tool steel and used to cut or shape material.
1. Simple die
2. Compound die
3. Combination die
4. Progressive die
Simple Die :-
Simple dies or single action dies perform single operation for each stroke of the press slide.
The operation may be one of the cutting or forming operations.
Compund die:-
In these dies, two or more operations may be performed at one station. Such dies are considered as cutting tools since, only cutting operations are carried out.
Combination Die : -
In this die also , more than one operation may be performed at one station. It is different from compound die in that in this die, a cutting operation is combined with a bending or drawing operation, due to that it is called combination die.
Progessive die :-
A progressive has a series of operations. At each station , an operation is performed on a work piece during a stroke of the press.