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Metal Casting

Process of making a metal idol

by

Prof. Bibhudutta Baral,Divyadarshan C. S.andLija M. G.

Tools and Raw Materials

Metal casting is a process of making a metal idol which requires different types of tools and raw materials. Generally charcoal (for heating in furnace) is purchased from Delhi and Ludhiana of Punjab State. The main raw material for making the idol is Copper, purchased from Delhi. The artisan uses about 5kgs crucibles for melting the copper.

Copper:
Pure copper is used for making the idol.

Brass:
It is added to the copper to increase hardness of the material.

Chalk Powder:
It is added on the mold box.

Rod:
It is used to set and spread the mud evenly.

Charcoal:
Its used as fire base to provide heat.

Hammer:
It is used to remove the heated mold.

Tongs:
Its used for lifting the crucible.

Flask Tongs(Bonzi):
It is used for holding the heated crucible.

Chinta (lid):
It is used for closing the mouth of crucible.

Crucible:
It is used as a container for melting the copper.

Sand Mold Box:
It is used for molding/shaping the product.

Mitti (Sand):
Roasted black sand is used as filler material in mold box available near the institute.

Sugar Cane Paste:
Sugar Cane Paste is used mix with mitti (sand).

Hand Crank Blower:
This is for melting the copper.

Small Metal Funnel:
It is used for making hollow on the mold to pour melted copper.

Natural Colors:
Colors are used to paint the surface of the idols.

Resin:
Its used to fix the color on the surface of the metal cast.

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