3.3 Common Heat Treatment Processes and Their Applications..............................................................................47 3.3.1 Types of Heat Treatment Processes.............................48 3.3.2 Annealing....................................................................49 3.3.3 Normalising.................................................................52 3.3.4 Hardening and Quenching...........................................54 3.3.5 Tempering....................................................................55 3.4 Surface Hardening Processes: Gas Carburising, Nitriding, Cyaniding..................................................................................56 3.4.1 Carburising..................................................................57 3.4.2 Cyaniding....................................................................58 3.4.3 Nitriding......................................................................58 3.4.4 Carbonitriding.............................................................59 3.5 Induction and Flame Hardening................................................59 3.5.1 Induction Hardening....................................................59 3.5.2 Flame Hardening.........................................................60 3.6 Heat Treatment Processes in the Automotive Industry.............61 3.7 Summary...................................................................................62 3.8 Review Questions.....................................................................62
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