Forging

Forging : Forging is the process of heating and plastically deforming metals or aloys to a specific shape by a compressive forece exerted by an upsetting maching of same kind.

Forge ability : Forge ability of  material is the capacity of a material to undergo deformation under alloy which can brought to plastic stage through heating can be forged.

Foregeability of materials mainly depend upon on:

* Metallurgical factors
1)Compression and purity of material
2)Number of phase present
3)Grain size

* Mechanical factors
1)Strain rate
2)Strain distribution

In comparison to machining and casting,forging has following advantage and disadvantage.

Advantage of Forging:

1)Strenght and toughness is high.

2)The material required to produce a component is less.

3)Internal porosity like segegation,cracks and porosity are eliminated.

4)Has ability to withstand higher loads.

5)component can be produced to close tolerance.

Disadvantage of