Castings Foundries in India – Shaping the Future

Posted: March 5, 2016 in Casting foundry, Manufacturers
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The process of castings in India is shaping the future and helping the industrial sector to reach new heights. It plays a crucial role in one’s life and has made it much easier. Casting is a manufacturing process with the help of which metal objects are obtained by letting liquid materials solidify and obtain the desired shape. With technological advancements, the casting process is also used in construction where objects are cast in a solo piece which otherwise needs the assembly of numerous pieces if developed by other methods. In flyover construction, for example, the materials such as iron, concrete, cement are cast into desired shapes and then fixed.

It is the shape of mould cavities that determines the shape of objects. The Process of making Components in Casting Foundries India also helps in minimizing or eliminating several operations such as welding, forging and machining.

This process is classified into expandable and non-expandable mould casting. The former includes Investment Casting, Shell Moulding, Plaster Casting and Sand Casting. Such types of casting include the use of non-reusable and temporary moulds. In the latter, there is no requirement for the mould to be reformed post each production cycle. Such techniques involve four different methods namely die, centrifugal, permanent and continuous casting. The casting application is benefiting manifold commercial processes and activities and its creations are constructive objects possessing great advantages.

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Types of castings used in India:

  • Sand casting: this is referred as one of the most practiced methods the world over. Here binders play a crucial role in the entire process which is accredited for managing the shapes of the mould. The sand casting process involves several ranges of binders and very little waste is produced in the entire technique. Low-cost method and largest casting sizes give it an upper hand over other casting methods.
  • Investment casting: popularly known as lost-wax casting, this is one of the oldest processes for metal forming. It is mostly utilized for small castings yet this process has produced aluminum casting, heavy alloy steel castings and aircraft doors. It mostly finds its application in the power and aerospace industries and is comparatively expensive than sand casting or die casting.
  • Shell molding: It’s same as the sand casting only difference is that the molding cavity is made from the shell of sand. It’s better than sand casting sand and It’s mixed with resin so that it can be designed and changed the pattern.  

  • Die casting: this process is used for creating metal parts by means of forcing molten metals into dies (reusable moulds) under high pressure. Such die casting is designed for producing complex shapes with repeatability and high accuracy. Mostly die casting is made from a non-ferrous metal but ferrous metal casting is also possible.
  • Plaster Casting: In this process Plaster, of Paris is used as the mold material. This takes place a week to form. As Plaster is the chip, plaster casting is inexpensive than another casting. One advantage of is that it can be only used with low melting point non-ferrous materials

Casting process uses arithmetical methods to compute cast component quality including mold filling, solidification, and cooling, and offers a quantitative prediction of casting mechanical properties, thermal stresses and distortion.

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