Home - Material Science - Difference between Forging and Casting

Difference between Forging and Casting

It is quite obvious there is a difference between forging and casting operation. They are both important processes in the manufacturing world. These two processes are used to make machinery, tools, objects of various shapes, etc. . Forging and casting are both done in manufacturing industries but have differences.

difference between forging and casting

Today you’ll get to know the difference between forging and casting processes and their various applications and benefits.

Read more: What is die casting? its advantages and disadvantages

Casting

Casting is a process of heating metals to liquid/melt and pouring the molten metal into a cavity in order to take the shape of the cavity in every detail so as to produce an article called casting.

It is a very old process of producing any materials with the desired shape. It has been in existence since 6000 years ago. Castings are used to produce complex shapes that cannot be easily manufactured by other manufacturing processes.

Casting is also used to make complex parts of any machine, they are done in automobile industries, railways, aeroscopes, shipping, etc. For producing different parts. Casting is used in the electrical aspect in producing items like motors, generators, pumps, compressors, etc.

Read more: Different Types of Nonferrous Metals and their Uses

Casting operations are also performed in hardware industries where production of plumbing pipes, joints, fittings, valves, etc. There are still a lot of items produced with casting. In fact, almost 90% of metal items are produced with casting. Difference between forging and casting Read: Casting Processes

watch the video below to learn how casting is done:

Forging

This is a manufacturing process in which metals are heated to some extent and compressed using external agencies like, hammers, rolls, press, or upsetting machines to obtain a specific shape.

Forging is used for different purposes and for specific reasons. It is used when an object needs greater strength, high tensile strength, a high degree of surface finish, greater productivity, more reliability, greater dimensional accuracy, greater fatigue strength, etc. Forging operations are also used when the less complex object is needed and the object with less weight.Difference between forging and casting

Forging is commonly used in a project like railroad equipment, small tools, automobile tools, and parts, aviation industries, etc.

Read more: What is forging Process?, its Advantages and Disadvantages

Difference between forging and casting

here are some specific differences between forging and casting:

  • The metal material is heated until it completely melts in the casting process while in forging operations the metal is heated below its recrystallization temperature.
  • Casting has high compressive strength when compared with forging.
  • One of the differences between forging and casting is that the Fatigue strength of casting is less while fatigue strength in forging products is high.
  • The imperfection or directional defect improves in forging while in casting it sometimes deteriorates due to little mistakes.

Read more: Different Types of Forging process

  • Items produced with forging operations are more reliable as compared with items produce with casting.
  • Another great difference between forging and casting is that forging provides greater tensile strength to the object than casting.

watch the video below to learn how forging is done:

  • Forging is less tedious as compared with casting.
  • Forging doesn’t require secondary finishing but in casting secondary finishing is required to get the desired dimension.
  • A forged object is more accurate than casting.
  • Forging gives greater productivity than casting.
  • In forging, fewer materials are waste as it requires no secondary finishing but in casting wastage of material is more as secondary finishing is required.

Read more: What is centrifugal casting? its Advantages and Disadvantages

  • A high degree of surface finish is obtained in forging but not so in casting
  • The cost of materials and production time is less in forging but in casting operations, the cost and production time is much.

That is all for this article, the difference between forging and casting. I hope you enjoyed the reading, if so, kindly comment and share with other students. Thanks for reading, see you next time!

 

Leave a Reply

Your email address will not be published. Required fields are marked *