Stamping includes a variety of sheet-metal forming manufacturing processes, such as punching using a machine press or stamping press, blanking, embossing, bending, flanging, and coining. This could be a single stage operation where every stroke of the press produce the desired form on the sheet metal part, or could occur through a series of stages. Die stamping's most advantage is cheap cost comparing to other forming ways for mass production.
Operations
·Bending
·Blanking
·Coining
·Drawing 
·Deep drawing
·Repousse and chasing (embossing)
·Forming
·Piercing
·Progressive stamping