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Heat processing, also known as heat treatment, refers to a group of industrial and metalworking techniques used to alter the physical properties of materials through controlled heating and cooling. This process is essential in manufacturing as it can improve material strength, hardness, toughness, and wear resistance. Common applications include annealing, hardening, tempering, and case hardening of metals. In the food industry, heat processing is used for preservation, pasteurization, and sterilization to extend shelf life and ensure safety. The aerospace, automotive, and construction industries rely heavily on heat treatment to enhance the performance of critical components. Heat treatment processes are carefully controlled based on material composition, desired properties, and application requirements. Improper heat treatment can lead to material defects, making expertise and precision crucial in this field. The development of advanced heat treatment technologies continues to play a vital role in material science engineering and manufacturing innovation.