Press work cutting and forming operations

1: Blanking: 

Blanking is the operation of cutting a flat shape from sheet metal. The item punched out is known as the "blank" and the required result of the operation the gap and the metal abandoned is disposed of as waste. 

2: Punching or Piercing: 

It is a cutting operation by which different holes openings are made in sheet metal. Punching is like blanking aside from that in punching, the gap is the fancied item. The material punched out from the opening being waste. 

3: Notching: 

This is cutting operation by which metal pieces are cut from the edge of the sheet , strip or blank. 

4: Perforating: 

This is a procedure by which numerous gaps are little and near one another are cut in a level sheet metal. 

5: Trimming: 

This operation contains of cutting undesirable excess of material from the outskirts of a formerly framed segment. 

6: Shaving: 

The edge of a blanked part are generally rough, uneven and non square.

Precise measurements of the part are acquired by removing a thin segment of metal along the edges. 

7: Slitting: 

It alludes to the operation of making incomplete gaps in a work piece. 

8: Lancing: 

This is a cutting operation in which a gap is mostly cut and afterward one side is twisted down to frame a kind of tab. Since no metal is really evacuated and there will be no scrap. 

9: Nibbling: 

The operation , which is utilized for just little amounts of segments, is intended for removing level parts from sheet metal. The level parts from easy to complex shapes. This operation is by and large substituted for blanking. The part is typically moved and guided by hand as the constantly working punch removing at the edge of the desired shape.

Forming Operation

1: Bending:

In this operation; the material in the form of flat sheet or strip is uniformly strained from a linear axis which lies in the neutral plane and perpendicular to the length wise direction of the sheet or metal.

2: Drawing:

This is a process of forming a flat work piece into a hollow shape by means of a punch which cause the blank into a die cavity.

3: Squeezing:

Under the operation, the metal is caused to flow to all portions of a die cavity under the action of comprehensive forces.