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Advantages & Disadvantages of Casting Process
2021-07-09 09:46:02

Today we will learn what casting is, its workflow and advantages and disadvantages of casting process.

What is casting?

Casting is defined as a manufacturing process in which molten metal is made pure into a mold or cavity of a desired shape and allowed to solidify to form a predetermined shape. The process is widely used to make complex parts that cannot be made by other processes. Lathe beds, milling beds, internal combustion engine parts and other major components are manufactured using this process.

Metal Casting

Metal Casting

Workflow of casting process

There are many types of casting and they work in different ways, but all of them involve the following steps in the process.

The first type of metal is melted in a suitable furnace.

The molten metal is now poured into a predefined cavity.

The molten metal is allowed to solidify at the desired cooling rate.

The casting is removed from the mold and cleaned for further processing, such as machining, surface finishing polishing, etc.

Advantages and disadvantages of casting process

Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process.

As a molding process, the basic advantage of casting is that the liquid metal has a small shear stress and be easy to shape.

Stainless Steel Precision Casting Wheel

Stainless Steel Precision Casting Wheel

Advantages of casting process

Wide range of low-prices raw materials, such as scrap, scraped components, chips, etc.

The casting method has obvious advantages of low production costs, compared with other forming processes.

Casting is a producing technique which poured liquid metal to the required mold. So casting processes can produce very complex shapes, especially the various custom metal components with complex internal cavities.

Casting processes are not limited in size, weight and production volume, and can produce a variety of metals or alloys. So casting process is more flexible.

Widely used. 40%-70% in agricultural machinery and 70%-80% in lathe are casting components.

Disadvantage of casting method

If using same material, the mechanical properties of casting components are not as good as the forging parts.The quality of metal castings is not stable because of too many production process. And the influencing factors are complex. So the casting process is difficult to control.

The casting products easily have various defects and deficiencies, such as pores, shrinkages, pinholes, inclusions, blisters and cracks inside the casting components.The casting dimensional accuracy is low, compared with machining components.

We can produce and export various casting components by using sand casting, resin sand casting, green sand casting, shell molding casting, investment casting, lost wax casting, water glass casting, silica sol casting, die casting, gravity casting, centrifugal casting and lost foam casting process. If you want to know about the casting process, welcome to contact us.


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