Die casting is the process of pouring molten metal into a mould cavity under high pressure. In precision die casting, a mould cavity is typically created using two steel dies that are moulded into the desired shape on a machine. Die castings are made of metalloids such as zinc, aluminium, and tin-based alloys. The type of metal being cast determines the type of machine used for casting like a hot chamber or cold chamber. Precision die casting is a suitable manufacturing process for high-volume products. Incremental unit costs are typically very low, as metal dies and casting equipment account for the majority of capital costs. This process ensures that the products they produce have an excellent surface finish and good dimensional stability with precise dimensions.
What Are The Perks In Using Precision Die Casting?
Here are some reasons why precision die casting should be observed over other manufacturing processes
- Because of its efficient, and economical condition for mass production
- being able to create a wide range of complex shapes and components
- The casted parts will have a long service life
- Some parts that are die-casted have high tolerances and dimensional accuracy
- There are several finishing techniques
- Automated processes ensure the consistency of the final product.
What Are The Types Of Die Casting?
There are two types of die casting one is a hot chamber die casting, and another one is a cold chamber die casting.
In hot chamber die casting, the cylinder chamber of the injection mechanism is totally immersed in molten metal. Direct immersion allows quick and comfortable injection into the mould for high performance. High-Temperature Chamber Die Casting eliminates the requirement to transfer metal from a separate furnace. It is a casting process, which is suitable for products using low-melting metals such as zinc, lead, and tin.
In cold chamber injection moulding, molten metal is poured into an injection system. Hereby it means that the injection mechanism has not been immersed in the molten metal. Cold chamber dies casting is usually slower than hot chamber die casting. However, it is excellent for high melting point alloys such as brass, aluminium, and magnesium.
The materials which are used in die casting are alloys, suitable for die casting which is having optimum density. The engineers evaluate mechanical properties such as strength, hardness, and elongation when selecting the right die casting alloy. The most commonly used die casting alloys are aluminium, zinc, magnesium, and copper.