Recent Inventions and Innovations in Induction Hardening of Gears and Gear-like Components

摘要

Presentation focuses on recent inventions and innovations (last 4-6 years) in induction hardening of gears and gear-like components, including but not limited to: (1) "Know-how" in controlling distortion of induction hardened gears. (2) Simultaneous dual-frequency induction hardening. (3) Advanced induction hardening process recipes when hardening small and medium size gears. (4) Novel inductor designs to minimize a distortion when induction hardening of hypoid and spiral bevel gears. (5) IFP technology for induction gear hardening. (6) Induction tempering and stress relieving of gear-like components with improved temperature uniformity. Presentation also provides a review of basic principles and applications devoted to induction hardening small, medium and large size gears using tooth-by-tooth techniques and encircling method.