Gear Carburizing & Quenching: Effective Case Depth Control
Effective case depth \( DS = k \times \sqrt{t} \)
Technical Library
Geyontech technical library — in-depth articles on gear design, gear hobbing, gear grinding, heat treatment (carburizing, nitriding)
Gear Carburizing & Quenching: Parameters and Defect Prevention
- Decomposition stage: Carburizing media (natural gas, propane, or kerosene) cracks at high temperature to produce active carbon atoms
Gear Carburizing & Quenching: Theory to Production Practice
$$d = (0.1 \sim 0.2) \times m_n$$
Gear Design Fundamentals: Types & Module Selection
A beginner's guide to gear design covering classification (spur/helical/bevel/worm/planetary), module selection principles, pressure angle …
Gear Drive Selection Guide: Spur, Helical, Bevel & Worm
Geyontech's in-depth analysis of four gear drive types (spur, helical, bevel, worm gear) covering engineering data, manufacturing processes, …
Gear Grinding Precision Control & Steel Selection Guide
In-depth grinding process guide: worm wheel vs form grinding comparison, grinding burn control, wheel dressing frequency and allowance …
Gear Manufacturing: Hobbing and Grinding Process Notes
Hobbing is the most widely used gear roughing process, covering over 70% of gear roughing operations. This note explains cutting parameters, …
Gear Manufacturing: Hobbing and Grinding Processes
Geyontech Daily Learning Session #3: Deep dive into gear hobbing (cutting parameters, accuracy grades, 3 common issues) and gear grinding …
Gear Material Selection & Heat Treatment Optimization Guide
38CrMoAl after nitriding reaches 900-1100 HV (~65-70 HRC) surface hardness — extremely wear-resistant but with a thin case (0.3-0.6mm), …
Gear Material Selection Guide: 20CrMnTi to 42CrMo
- Typical grades: 20CrMnTi, 20CrMo, 20CrNiMo
Gear Materials & Heat Treatment: Selection & Carburizing
Carburized gears account for over 80% of heavy-duty gears. The process route is: blanking → forging → normalizing → rough turning → …
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