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Do You Know the Difference Between Forging and Casting?

Time : 2024-02-19

Forging and casting are two methods of metalworking that differ greatly in their manufacturing processes, material properties and end products.

Forging is the process in which thermal and mechanical energy is applied to ingots to cause the alloy to change shape while in a solid state. Casting is the process in which metal is heated in a furnace until molten. While in the liquid state, the metal is poured in a die, or mold, to create a component shape.

forging VS casting

Difference in manufacturing process:

Forging: Forging is the process of forming a metal into a desired shape by heating it to a high temperature and then hitting or squeezing it hard. This usually involves the use of a forging hammer or press to work the metal into the desired shape, such as forgings, bearings, and tools.

Casting: Casting is the process of pouring liquid metal into a mold and allowing it to solidify into a desired shape. Casting usually includes methods such as sand casting, missing mold casting, and die casting.


Difference between forging and casting process characteristics:

Forging has high strength, high toughness and good mechanical properties, can improve the internal organization of metal materials, suitable for manufacturing high-quality and demanding parts.

While casting has the ability to manufacture complex shapes and large parts, relatively low cost.


Difference in material properties:

Forging: Forging usually causes the metal particles to flow in the direction of the molding, which improves the strength and toughness of the material, and is suitable for handling high-strength materials. Since forging takes place at high temperatures, the grain structure of the metal is also improved.

Casting: Metals in casting typically have larger grains, which can result in relatively low strength and toughness. It is suitable for treating all types of metals and alloys. In addition, porosity and inclusions may occur during the casting process, which can negatively affect material properties.


Difference in scope of application:

Forging: Forging is typically used to manufacture parts that require high strength and toughness, such as automotive crankshafts and aircraft engine parts.

Casting: Casting is suitable for the manufacture of large parts, complex shapes and large quantities of parts, such as cast iron parts, aluminum alloy parts.


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