2. Why Hardening is done? Procedure of casting?

Question

Accepted Answer

Hardening is done to increase the strength and durability of materials. Casting involves pouring molten metal into a mold.

Hardening is a heat treatment process that involves heating and cooling a material to increase its strength and durability.
Casting is a manufacturing process in which a liquid material, such as molten metal, is poured into a mold and allowed to solidify.
The procedure of casting involves preparing the mold, melting the material, pouring it into the mold, and allowing it to cool and solidify.
Examples of materials that can be hardened include steel, aluminum, and titanium.
Examples of casting processes include sand casting, investment casting, and die casting.

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