Heat treatment is a method of changing a metal’s internal structure through precise heating and cooling cycles. This either makes the metal stronger or softer and easier to shape.
The main aim of heat treatment is to improve the metal’s hardness and strength. Not only that, but it also improves its ductility and resistance to rust. This process has been used for many years. Early blacksmiths used heating and cooling processes to forge tools and swords. Today, factories use high-tech equipment for the same process.
