Stamping

From DDL Wiki

Process
Stamping is the manufacturing process by which sheet metal is deformed via a die and punch into a desired shape. It is a very versatile process capable of many different form operations such as piercing, drawing and bending.

PIERCING
Blanking
The process by which a punch and die apply pressure to sheet metal to shear it and obtain a desired shape (blank) that is removed from the sheet which is now considered scrap.

Punching
The same process as blanking, except that removed material is scrap, and the remaining sheet is the workpiece.


DRAWING
Deep drawing
The process by which a sheet metal blank is formed into a cylindrical or box-shaped part by the punch pressing the blank into the die cavity.

Ironing
The same process as deep drawing, except that the die cavity has less clearance forcing the resulting cup to have a constant wall thickness.


BENDING
Air bending
The process by which sheet metal is plastically deformed to a desired angle.
Bottoming
The same process as air bending, except that the workpiece reaches the bottom of the die.

Coining
The same process as bottoming, except that the punch tip penetrates the neutral axis of the material.
Flanging
Another variation of bending in which the edges of the sheet metal are bent to create a flange.

BULGING
Embossing
The process of forming shallow shapes, like letters, numbers or designs on sheet metal.

Capabilities

Use

Simple or complex shapes at high production rates

Cost

High tooling and equipment costs
Low labor costs

References
1. http://en.wikipedia.org/wiki/Stamping_%28metalworking%29
2. http://www.beststampings.com/index.htm
3. http://www.engineersedge.com/manufacturing/metal_stamping.htm
4. http://www.mfgquote.com/process_metal_stamping.cfm
5. http://www.visionsenterprises.com/mastertool/definitions.htm