Full process of a knife quenching in water / old school quenching technique #howto | METAL WORKS

High-frequency quenching is a heat treatment process used to harden the surface of automatic transmission gears. By using induction heating, the gear is rapidly heated with high-frequency AC, generating eddy currents that heat the metal without direct contact. Once the desired temperature is reached, the gear is quickly quenched with water or oil, locking in a hardened surface while keeping the core tough. This enhances wear resistance, durability, and performance, making it a crucial process in