In fact, nothing can be made without heat treatment, the process of heating and cooling metals under tight control to improve their properties, performance and durability.Heat treatment softens the metal and improves formability. It hardens the part for strength. It can place a hard surface on a relatively soft part for added wear resistance. It forms a corrosion-resistant skin to protect components that would otherwise corrode. Also, it can harden brittle products.Heat treating parts is critical to the operation of automobiles, airc...
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