What is die casting process?
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 high volume of production and when quality, a consistent part is needed.
It is known as one of the quickest and most economical casting process. And can produce a hundred of thousands casting of same item using one mold, offering equal quality to the items.
The purpose of this article is to expose you to die casting, its advantages and disadvantages. In my previous articles centrifugal casting has been explained.
As earlier mentioned, die casting process is suitable for multiple and mass production of component. It is more better and faster than sand casting, due to the demolition of mold when bringing out the casting.
- Sand casting: how it is done from pattern making to trimming
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Advantages and disadvantages of die casting process
Some advantages of die casting are mentioned above if can recall. Here are some to enlighten you more.
- It offers accurate dimension and 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 use for same production.
- It offers fast production rate
- Casting have long service life and close tolerance
- It is economical
- It is used for casting wide range of complex application
Here are some other advantages it offers to the casting properties
- Good processing properties
- Offers high electrical conductivity
- It have high corrosion resistance
- High strength and hardness
- High thermal conductivity
- Good EMF/RFI isolation
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 high melting point cannot be applicable
- Too long lead time
- Smaller production runs may reduce cost-effectiveness
- What is Heat treatment of metals? – its advantages and disadvantages
- Heat Treatment of Aluminum and Aluminum alloys
- The 3 Stages of Heat Treatment Process
And that is it for this article, what is die casting, its advantages and disadvantages. I hope you understand, if you truly do answer the question below and help others by sharing. Thank for reading!