Designing the tool as per the component’s geometry and quantity requirements considering various factors like shrinkage properties of wax, metal and it’s design.

Firstly, the wax replica of the required casting is produced with the help of injection molding. Such wax replicas are known as patterns.

Further, Wax pattern goes for cleaning & repairing through which dust particle are taken off, shrinkage portion to be filled with repairing wax with the help of repairing wax.

Secondly, the wax pattern is attached to a sprue (central wax stick) for forming an assembly or casting cluster.

Thirdly, a shell is made by dipping the assembly inside a container comprising of liquid ceramic slurry followed by putting it into a bed comprising of very fine sand approximately up to at least 8 layers can be applied in such a manner.

Fourthly, the wax is immediately melted out the moment the ceramic is dried out, forming a negative impact of the assembly inside the shell.

Shell Baking is a controlled process used to alter the microstructure of metals such as stainless steel, carbon steel and alloy steels to impart properties which benefit the working life of a component.

In case of the conventional process, molten metal is filled in the shell via gravity pouring. When the metal cools down, the pouring cup, sprue, gates and parts turn into one solid casting.

When the metal gets cooled and solidified, next the ceramic shells are broken with the help of water quenching.

The parts are traditionally cut away and separated from the main sprue with the help of a friction saw of high speed.

The metal castings that are identical to that of the original one is finally complete post minor finishing operations.

Small sample is taken from the molten metal and it is quickly solidified by the help of quenching it in the water. It is then tested in Spectrometer to know it’s chemical properties.