Metalwork

Understanding die casting

In today’s world, creating smaller items with complex shapes has become possible using die casting. After varieties of casting process out there, this process tends to be stand out as its offer lots of benefits in the manufacturing world. In this article, you’ll get to know the definition, applications, working, advantages, and disadvantages of die casting.

die casting

Read more: Understanding centrifugal casting

What is die casting?

Die casting is an automated casting process that forces liquid metal under high pressure (150 to 1200bar) into a mold cavity at a high filling speed. This type of casting offers uniform quality to the component produced. it is typically used when a high volume of production and when quality, a consistent part is needed.

It is known as one of the quickest and most economical casting processes. And can produce a hundred of thousands casting of same item using one mold, offering equal quality to the items.

Read more: Understanding sand casting process

As earlier mentioned, the die casting process is suitable for multiple and mass production of components. It is better and faster than sand casting, due to the demolition of mold when bringing out the casting.

Applications of die casting

The applications of die casting are most suitable for casting medium-sized parts with complex details. The technique is often performed on nonferrous metals like magnesium, aluminum, etc. Die casting is one of the largest casting methods that is used to manufacture consumer, commercial and industrial products like automobiles, toys, parts of the sink faucet, connector housing, gears, etc.

Advantages and disadvantages of die casting

Watch the video below to learn the working of die casting:

Read more: Understanding evaporative pattern casting 

Advantages and disadvantages of die casting

Some advantages of die casting are mentioned above if can recall. Here are some to enlighten you more.

  • It offers accurate dimension and a good surface finish, helping to eliminate post finishing
  • It can be fully automated
  • One of its greatest advantages is that one mold can be repeatedly used for the same production.
  • It offers a fast production rate
  • Casting has long service life and close tolerance
  • It is economical
  • It is used for casting a wide range of complex application

Here are some other advantages die casting offers to the product properties

  • Good processing properties
  • Offers high electrical conductivity
  • It has high corrosion resistance
  • High strength and hardness
  • High thermal conductivity
  • Good EMF/RFI isolation

Read more:  Understanding investment casting

Disadvantages

Despite the great advantages, die casting still offers some disadvantages that can be avoided and overlook. The following are:

  • High die cast
  • Gasses entrapped in form of porosity
  • Metals and alloys with a high melting point cannot be applicable
  • Too long lead time
  • Smaller production runs may reduce the cost-effectiveness

Read more: Everything you need to know about foundry 

That is all for this article, where the definition, applications, working, advantages, and disadvantages of die casting are being discussed. I hope you enjoyed the reading, if so, kindly share with other students. Thanks for reading, see you next time!

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