Recent progress in three areas of induction-heating technology

This paper introduces recent research progress of induction heating technology at Baosteel, specifically the development of full coil static induction heating technology of the...

Troubleshooting and Prevention of Cracking in Induction Hardening of Steels: Lessons Learned – Part 1

Newly employed heat-treat engineers, designers and practitioners may need an appreciable amount of time to gain the required knowledge and experience in understanding the...

Case Study: Laser Hardening

To increase the hardness of a steel material, there are basically three required steps in the hardening process. Step one is to heat the...

Selection of Oil Quenchants for Heat-Treating Processes

Modern quenching oils offer a wide range of capability and performance. The selection of the proper quench oil is critical for proper heat-treating operations....

Gas carburization techniques

A comparison of conventional and accelerated methods for surface hardening

Troubleshooting and Prevention of Cracking in Induction Hardening of Steels: Lessons Learned –...

One of the most common applications of induction heat treatment is the hardening of steels, cast irons, and powder-metallurgy materials, developing an attractive blend...

Additive manufacturing and gas technology applications

As the demand for additive manufacturing (AM) products has steadily increased, so have the many enabling technologies including laser powder bed fusion, laser metal...

Infrared Temperature Measurement Theory and Application

An infrared thermometer measures temperature by detecting the infrared energy emitted by all materials at temperatures above absolute zero, (zero degrees Kelvin). The most...

Principles of pyrometry

Regarding comprehension, on a scale of 1 to 10, AMS2750E is about a 12. Practically speaking, when an engineer, quality person, or operator picks...

Plasma/ion nitriding for enhancing component properties

Thermochemical surface treatments, such as plasma/ion nitriding, are effective ways of enhancing the mechanical properties of ferrous and titanium alloy parts . Through the...

Intelligent Gas Carburizing with Super IQ ™

Atmosphere furnace or vacuum furnace, which to use? In carburizing, for instance, the workhorse furnace is the atmosphere gas carburizing furnace with integral oil...

The versatility of the pit furnace

Top-loading furnaces, commonly referred to as pit furnaces, have played a major role in the heating treating landscape for the last century or longer....

Reducing measurement error when making thermocouple transmitter connections

The thermocouple (TC) is a thermo-electric device used to measure temperature and nearly two-thirds of U.S. temperature measurement makes use of thermocouples. Most industrial...

An In-Depth Look at Polymer Quenchants

Quenching of various alloys to achieve mechanical properties has been an area of scientific research for many years. Using polymer quenchants has proven to...

Filament-Wound Composites Have Specialized Curing Requirements

Filament winding is a manufacturing method for making tubular and cylindrical shapes of extreme strength and light weight. The technology involves wrapping a mandrel...

New Cooling Tower Technology Augments HVAC and Industrial Processes

Recent developments in factory-assembled cooling-tower technology are increasing the applications for so-called “package” towers supporting HVAC and industrial processes. Although field-erected towers have been...

Induction hardening of cast irons

The success in induction hardening of cast irons and repeatability of obtained results are greatly affected by a potential variation of matrix carbon content.

The Advantages of an All-Metal Vacuum Furnace Hot Zone

For more than 70 years, the vacuum furnace has been available for metal processing requirements, and is widely accepted as the ideal equipment for...

Understanding the Cooling Curve Test

When a hot component comes in contact with the liquid quenchant, there are normally three stages of quenching. There are exceptions to this, which...

Optimizing Temperature Measurement in Heat-Treatment Operations

Quality and efficiency in heat-treatment operations requires accurate temperature measurement. Specifying thermocouple wire and thermocouples carefully will lead to greater temperature measurement accuracy and...

Gas Nitriding of Titanium

Interest in solution gas nitriding and diffusion of nitrogen into the surface of titanium alloys as a means to inhibit adhesive wear (galling) while...

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...

Enhanced Properties of 17-7 PH Stainless Steel

Background Precipitation-hardening (PH) stainless steel grade 17-7 PH is classified as a semiaustenitic stainless steel used extensively in aerospace and finding new applications in the...

Energy and material efficiency of steel powder metallurgy

Concern about global warming motivates the reduction of greenhouse gas emissions from manufacturing, but the environmental impact of the whole powder metallurgy production chain...

Getting the thermal treat results you want

How aggressive quenching and other drivers lead to high performance

Controlling Distortion in Heat Treatment Through Press Quenching

Introduction Press quenching is a specialized quenching technique that may be utilized to minimize the distortion of complex geometrical components during heat treatment1. Distortion is...

Case Hardening Basics: Nitrocarburizing vs. Carbonitriding

Confusion surrounding the case-hardening techniques of nitrocarburizing and carbonitriding prove the point that it's easy to get lost in the nomenclature behind heat-treating processes. That...

Freezing Out the Competition

Most companies are looking for a secret that can help them keep a step ahead of the competition — a little edge to run...

Hardening of Powder Metallurgy Parts 101

Powder metallurgy (PM) is unique in that one has the ability to create a process system (alloy, process steps, and secondary operations) specific to...

Aerospace Testing & Pyrometry

With its motto, “Profit from our knowledge because quality is our standard,” Aerospace Testing & Pyrometry keeps a laser focus on aerospace pyrometry compliance and a top priority on the customers it serves.

Benefits of graphite and C/C fixturing

More heat-treating engineers are making the switch to graphite fixturing using carbon composite materials.

Stress Generation in an Axle Shaft during Induction Hardening

Introduction Induction hardening of steel components offers a fast heating rate, high efficiency, and the ability to heat locally. Induction hardening is a highly nonlinear...

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...

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...

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...

Ion Nitriding of Ferrous and Titanium Alloys for Gear Applications

Thermochemical surface engineering is effective in improving the performance of various gears made of ferrous alloys . The cost of machining typical gears during...

Selecting the correct industrial ovens for finishing applications

Finishing is defined as “completing the manufacture or decoration of a material or product by giving it an attractive surface appearance.” In industrial applications,...

High-efficiency gas burners make good economic sense

Even though the price of natural gas is currently low, the investment in high-efficiency gas burners makes sense economically. This article discusses different types...

Heat treatment of PM parts by hot isostatic pressing

Several advantages can be seen by using pre-stressed wire-wound hot isostatic presses for consolidating of metal powder.

Filler metal control in sinter brazing

The control of the filler metal at the braze joint of a sinter brazed product has significant impact on the quality and yield of complex shapes.

X