Final answer:
Tempering, also known as normalizing, is a heat treatment process for metals to enhance their mechanical properties.
Explanation:
Tempering is a process often used for metals to improve their mechanical properties, such as hardness and toughness. Another term for tempering is normalizing, where the metal is heated and then cooled in a controlled manner to achieve desired characteristics. This process is distinct from quenching, which involves rapid cooling to increase hardness, and annealing, which involves heating and slow cooling for softening the metal.
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