Overview of Casting Process

Casting manufacturing is a process in which liquefied material, such as molten metal, is poured into the cavity of a specially designed mold and allowed to harden. After solidification, the workpiece is removed from the mold to undergo various finishing treatments or for use as a final product. Casting methods are typically used to create intricate solid and hollow shapes, and cast products are found in a wide range of applications, including automotive components, aerospace parts, etc.

Different Types of Casting

SG Iron Casting


C.I. Casting


Aluminium Die


Metal Casting Process Characteristics

Several features unite different variations of the metal casting process:

  • The production process is high volume and low cost.
  • Complex shapes may be cast, eliminating or minimizing the use of other manufacturing processes like machining, forging, and welding.
  • It offers the ability to cast large-scale objects like pump housings or valves.
  • Uniform material properties like machinability, bearing, and strengths are obtained on the cast object.
  • Cutting weight reduction is obtained by allowing products to be cast as thin-wall casting.
Beyond these shared traits, the metal casting process features two main categories: expendable and reusable.
  1. Reusable molds can be reused after the castings are ejected.
  2. Expendable molds are consumed during the casting process.

Most molds consist of a minimum of two pieces forming a cavity where the liquid metal is poured to produce the metal castings.

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