Flame Hardening
Heat treating gears increases their durability and strength, and there are many heat treating options to suit different applications. To […]
High Temperature Vacuum Carburizing Drives Alloy Development
Vacuum carburizing (low pressure carburizing, or LPC) is a process used to impart hardness, wear resistance and increased fatigue life […]
Induction Hardening for Wind Turbine Bearing Rings
It seems nothing — not even a worldwide financial crisis — can stop the rise of wind energy. The 2008-12 […]
Forging: 101
Introduction PeripWhen buyers must select a process and supplier for the production of a critical metal component, they face an […]
Influence of Central Members Radial Support Stiffness on Load Sharing Characteristics of Compound Planetary Gearsets
Abstract In this study, a non-linear dynamics model of Ravigneaux compound planetary gearsets which adopts the intermediate floating component is […]
Application of ICME to Optimize Metallurgy and Improve Performance of Carburizable Steels
Introduction QuesTek Innovations LLC (“QuesTek”) of Evanston, IL uses its proprietary Materials by Design® expertise and technology in conjunction with […]
Numerical Modelling Of Hot Forming and Heat-Treatment of Annular Gears
During the last two decades, there has been very intense research activity in the field of finite element simulation in […]
A Study on Contact Fatigue Performance of Nitrided and TiN Coated Gears
The developing trend of gears focusing on high-speed, heavy-duty, lightweight, and small sizes makes hardness promotion of gear face through […]
A New Standard Under Development: Specifying Powder Metallurgy Gears
In the early nineties, I was working at a transmission manufacturing facility in Indiana that made lawn and garden transmissions. […]
Enhancing Control of Distortion Through One-Piece-Flow Heat Treatment
Proper distortion control has become even more important than in previous days. Distorted gear components cause noise in the transmission […]
Casting, Forming, and Forging
There are many methods for manufacturing gears, including: Metal removal processes (hobbing, shaping, milling, shaving, grinding, honing, and lapping) Various […]
Crack Testing and Heat Treat Verification of Gears Using Eddy Current Technology
While eddy current technology was initially developed for testing of bar, tube, and wire, advances in electronics, automation, and coil […]
Electric Furnaces Complement Heat Treat Requirements for Gears
Furnaces heated by electric elements routinely harden, anneal and stress relieve gears. Today’s heating elements operate at higher temperatures, last […]
Processing New Gear Steels
Carburized steel gears are widely used for power transmission in rotorcraft, transportation vehicles, agricultural and off-road equipment, industrial rotating equipment, […]
Cryogenic Treatment of Gear Steel
Case carburized steel (En 353) is the material commonly used for making crown wheels and pinions. The reasons for the […]
Gas Carburizing vs. Contour Induction Hardening in Bevel Gears
This paper examines the impact on distortion of two processes using traditional gear measurement techniques. It will discuss design considerations […]
Gear Hardening Goes Green
In his annual message to Congress in December of 1862, President Abraham Lincoln concluded with the words “We can succeed […]
Cryogenic Treatment of Gears
Most companies are looking for a secret that can help them keep a step ahead of the competition… a little […]
Retained Austenite Stabilization
The phenomenon of retained austenite stabilization in tool steels is well documented [1,2]. When a steel with a martensite finish […]
Dimensional Stability in Cryogenic Treatments
When cryogenically treated, case carburized steel (En 353) showed tremendous improvement in wear resistance [1]. This is due to the […]
