1. SHEET METAL FORMING PROCESS / PRESS WORKING OF SHEET METALS
Press working also termed as Cold stamping.

2. Presses
In sheet metal working it is a machine tool with a bed (die) and powered ram (punch) that can be driven toward and away from the frame to perform various cutting and forming operations

3. PRESS OPERATIONS Blanking Punching ( Piercing) Notching Perforating
Cutting operations
Blanking
Punching ( Piercing)
Notching
Perforating
Shaving
Trimming
Slitting
Lancing
Nibbling
Forming operations
Bending
Drawing
Squeezing

4. BLANKING Punching / Piercing
It is the operation of cutting a flat shape from the sheet metal in single step
Punching / Piercing
It is the operations by which holes are produced

6. Notching
It is a cutting operation by which metal pieces are cut from the edges
Perforating
It is the operation by which multiple small holes are cut in a sheet metal
Slitting
It is the operation of making incomplete hole
Lancing
It is the operation in which the hole is partially cut and then one side is bent down to form a sort of tab or louvers

8. Lancing

9. Trimming
It’s a operation of cutting unwanted excess material.
Shaving
The uneven surfaces along the edges are removed by this operation

11. Dies Types Simple- single operation with a single stroke
Compound- two operations with a single stroke
Combination- two operations (cutting & forming)
Progressive- two or more operations at two or more stations with each press stroke, creates what is called a strip development
Transfer dies
Multiple or gang die

13. Progressive Dies