3 Types Of Metal Casting And Its Advantages

custom metal molds
6 Main Steps of Metal Casting Process Explained
October 29, 2021
Metal molds for casting

3 Types Of Metal Casting And Its Advantages

The technique of pouring molten metal into a mould with a hollow hole of a geometrical shape and allowing it to cool to form a solidified object is known as metal casting. Manufacturers have great knowledge of metal moulds for casting. The term casting is traditionally used to build intricate and huge items that would be difficult or expensive to manufacture using other methods.

Casting is mostly used to create ingots and forms. An ingot is a simple-shaped casting intended for additional processing, such as metal extrusion, forging, and so on. Form casting is used to create complex geometries that are closer to the final product in near or net shape castings.

Metal Casting Types:

The underlying basis of the mould design divides metal casting into two groups. Expendable mould and permanent mould castings, for example. It can be classified further into sections according to the pattern material used.

Casting with an Expendable mould:

Expendable mould casting produces the final casting using a temporary, non-reusable mould that will be shattered to get the casting out. Sand, pottery, and plaster are commonly used to create these moulds. To improve their qualities, they are usually bonded with binders called bonding agents. Expendable mould casting can cast complex, sophisticated structures.

Casting in a permanent mould:

Permanent mould casting, also known as non-expendable mould casting, uses permanent moulds that are reused after each production cycle. Even though permanent mould casting creates reproducible parts due to the reuse of the same mould. It can only produce simple castings because the mould must be opened to remove the castings.

Casting in a composite mould:

Castings are made using both disposable and reusable casting moulds, as the name implies. Materials such as sand, wood, graphite, and metal are commonly used.

Advantages Of Metal Casting:

  • Metal casting allows for the creation of complicated shapes.
  • Internal cavities or hollow parts, for example, are simple to implement.
  • Large components can be cast in a single piece.
  • Casting can make materials that are difficult or expensive to make using other methods.
  • For medium to large quantities, casting is less expensive than other manufacturing techniques.
  • Casting is possible for almost all metals.
  • The near-net form is frequently produced without or with only modest post-processing.

Metal casting is an important net shape manufacturing technology for the reasons stated above. The net form forging, sheet metal stamping, additive manufacturing, and metal injection moulding are among the others.

Leave a Reply

Your email address will not be published. Required fields are marked *