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Forging VS Casting with Brief Explanation.




Forging and casting are two different manufacturing techniques used for transforming metal materials into the desired shape and size.



What is Forging ?




Forging is the application of thermal and mechanical energy to converting metal into desire shape by applying pressure and with or without heat.It is used in order to apply a geometric change to the material. This process of forging is mainly used in the iron and steel manufacturing industry. Forgings are famous for making some of the strongest manufactured parts as compared to the parts made by employing other techniques.Forgings are generally stronger than castings, but there are some limitations to manufacturing capabilities of forging.And also When something is forged it is physically forced into shape while remaining in a solid state – although it is frequently heated.


Types of Forging process :-


  1. Impression die forging, 
  2. Cold forging, 
  3. Open die forging and 
  4. Seamless rolled ring forging.



What is Casting ?



Casting is the process where metal is heated until molten. While in the molten or liquid state it is poured into a mold or vessel to create a desired shape. This process converts the metal into desire shape. It is useful to make complex structure.These probable used such cases like where the forging cannot be able to done , or to manufacture wide range of wear parts and components that are too large, complicated, intricate .Another advantage of castings is that machining costs can sometimes be cut down because the component can be made to certain specifications.



Types of Casting Process :-


  1. Gravity casting (including sand casting and die casting)  
  2. Pressure casting (including low pressure casting and high pressure casting).

Comparison Between Forging and Casting :-

  1.  In Casting Process the Tensile and Fatigue strength is Lesser when compared with Forging Process.
  2. Metallurgical defects were avoided in Forging process. But in Casting Process the Metallurgical defects will occurs.
  3. Requires close control due to the probability of alloy segregation to Response to heat treatment in Casting Process.
  4. Tooling is often less expensive than forge dies.
  5. Complicated/complex parts are can be made without any  problem.

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