Simulation of Gas Quenching of Steel Parts
One major difference between immersion quenching and gas quenching is the presence of boiling during the early stages of quenching in oil or water....
Deep Cryogenic Treatment
What is deep cryogenic treatment? Deep cryogenic treatment (DCT) of steels and other materials is a distinct process that uses the application of extreme...
How Gears Fail
Heat treatment plays an important — some would say critical — role in gear manufacturing. Therefore, there is a need to better understand, from...
Recent Inventions and Innovations in Induction Hardening of Gears and Gear-like Components
This paper focuses on recent inventions and innovations (from the past four-six years) in induction hardening of gears and gear-like components, including, but not...
Heat Treat Process For Gears
Heat treatment is a critical and complex element in the manufacturing of gears that greatly impacts how each will perform in transmitting power or...
Typical Heat Treatment Defects of Gears and Solutions Using FEA Modeling
Steel gears are heat treated to obtain enhanced properties and improved service performance. Quench hardening is one of the most important heat treatment processes...
Tighter Control Through Understanding What Your TUS Reports Are Telling You
Temperature uniformity is the temperature variation (usually expressed as ± degrees) within the qualified furnace work zone (Figure 1) with respect to a set...
Gas vs. Liquid Quenching: A Direct Comparison in Hardenability to Reduce Distortion
Introduction
Hardenability is the ability of steel to partially or completely transform from austenite to some fraction of martensite at a given depth below the...
Austempering: An Old Process with New Potential for Gears
The Austemper heat treat process was first developed in the 1930’s. Its application was initially limited to low volume, relatively small steel components. This has...
How to Avoid Heat Treatment Problems When Launching New Gear Programs
So you’ve just secured an exciting new gear-manufacturing project and it’s time to start production planning. Heat treatment, such as carburizing, hardening and tempering,...
A Case for Acetylene Based Low Pressure Carburizing of Gears
Low pressure carburizing (LPC) is the technology of choice for the precise carburizing of high-performance gearing . To achieve absolute process repeatability and the...
New Simulation Software Tool Successfully Used in Carburizing Gears
In 1999 when the Center for Heat Treat Excellence (CHTE) was formed, the idea was to develop collaborative research between the industrial sector and...
Contour Hardening Bevel, Hypoid, and Pinion Gears
Traditional gear heat treatment involves gas carburizing in batch or continuous furnaces for an extended time, and then oil quenching. The gears are typically...
Maintenance Procedures for Vacuum Furnaces
More gear manufacturers need to add vacuum furnace machines to the shop floor and include this procedure in the overall manufacturing process. As vacuum...
Rapid Stress Relief and Tempering
Stress relief and tempering are important processes, but they are still conducted much as they have been for the past 50 years. However, advanced...
Variety of Furnaces Can Be Used for Heat Treatment of Gears
Gear heat treatment can be done in a wide variety of different types of industrial furnaces, each with its own unique characteristics. This article...
