Process Control and Scada
Heat treaters are always looking for methods to improve productivity without compromising quality. One method that many heat treaters have put in place is...
Classifying non-metallic inclusions in steels
In this column, we will discuss the different types of inclusions present in steels and discuss their physical metallurgy. As property requirements increase, and...
European Conference on Heat Treatment in Prague well attended
The European Conference on Heat Treatment and 5th International Conference on Heat Treatment and Surface Engineering in Automotive and Transportation Applications “Heat Treatment in...
Stress evolution during quench hardening of steel
Quench hardening of steel components involves complex, nonintuitive phenomena, particularly as it relates to the dimensional changes and stresses induced. Figure 1 shows a...
Industrial automation and labor in heat treating
There is a changing landscape on two fronts in the thermal processing market. Without a doubt, there are technological opportunities that companies can take...
Q&A with Greg Jennings
What’s a typical day like for you at Wisconsin Oven?
My typical day is quite a bit of fun. I’ve got three kids, and it’s...
Blistering of aluminum during heat treatment
In this column, we will discuss the blistering of aluminum during heat treatment, and methods to prevent its occurrence.
Introduction
High-temperature oxidation, or blistering, often occurs...
Q&A with Johann Klett
What makes up your recently launched expanded service team?
We’re focusing on several different services that we’re going to provide right off the bat starting...
From time/temperature to HTC
High-pressure gas quenching (HPGQ) involves quenching an austenitized part in an inert gas, resulting in a cleaner part and potentially reduced distortion compared to...
Compelling reasons normalizing produces high quality gears
In this day and age, adding steps to the gear manufacturing process is not highly desirable unless the benefits far outweigh the costs incurred....
Testing of Induction Hardened Work Pieces
Hardness testing is a simple and universally accepted practice for checking induction hardened parts and is performed in literally thousands of manufacturing facilities. There...
IHEA’s Fundamentals of Industrial Process Heating course starts April 8
The Fundamentals of Industrial Process Heating Online Learning Course has been a successful source of high-level learning for those in the industrial heat-processing industry...
Characterizing equipment using simple modeling tools
Often, the terms “digital twins” or ICME (Integrated Computer Materials Engineering) are used when talking about computer modeling of actual parts or the behavior...
Deadline approaching for ECHT2022 conference abstract submissions
Abstract submission deadline is January 31, 2022, for the 27th IFHTSE Congress in Salzburg, Austria, September 5-8, 2022, at the Wyndham Grand Salzburg Conference...
IHEA rings in 2023 with some great events
February
IHEA’s Fundamentals of Industrial Process Heating Online Course starts February 20: IHEA’s Fundamentals of Industrial Process Heating Online Learning Course has been a successful...
Q&A with Michael Hager
What’s a typical day like for you at Verder Scientific/Carbolite Gero?
Our office here in North America is primarily focused on sales, technical support, and...
Enhanced properties of metal matrix nanocomposites
Application of carbon nanotube (CNT) reinforced metal matrix nanocomposite (MMNC) has been increasing rapidly since the discovery of CNT in the 1990s. These novel...
Performing a Temperature Uniformity Survey
Performing a temperature uniformity survey (TUS) can be somewhat of a daunting process. After all, a TUS carries the weight of not only being...
Evaluating effect of heat treat on flank slope profile deviation of steel gears using...
The finish machining of a gear is undoubtedly one of the most important manufacturing steps. It sets the geometry, surface condition, and residual stress...
Anatomy of a Heat-Treating System
Ninety-eight 600-pound trays are in continuous process, 13 are in the pre-process queue, nine preheating, 14 in the boost carb, eight in the diffusion...
Check out IHEA webinars, online education
IHEA strives to provide a base of industry knowledge for our members and users in the industrial process heating industry. Many valuable resources can...
Gear inspection methods from heat-treat simulation
Gear design is a complex process, involving dozens of parameters, tolerances, and relationships to mating components. Generally, professional standards guide the gear designer to...
Q&A with Trevor Jones
As a quick refresher, remind our readers of Solar Manufacturing’s role in the heat-treat industry?
Solar Manufacturing is a premier vacuum furnace manufacturer that specializes...
Heat treatment of aluminum – Part II
In my article last month, I discussed the alloying elements used in aluminum alloys. In this article, I will be discussing the solution heat...
Quench tank agitation by submerged jets
In this column, I will discuss agitation by submerged jets.
Common methods of agitating quench tanks, and other types of tanks, are by sparging or...
Q&A with Raymond Daniel Noble
What are your duties with Noble Industrial Furnace? What is your typical day?
My duties include, but are not limited to, oversight of design and...
Learning from failure in bending stress
A couple of years ago, as I was finishing my graduate studies, I was lucky enough to participate in the Strong Bar competition put on...
Is there a furnace problem?
That question is much easier to answer if you learn the indicators, alarms, switches
Cold expansion an efficient strengthening solution
In flight, aerospace components are in a state of constant cyclic stress. The term “flying fatigue machines” is commonly used by those in the...
Learn from the best with educational offerings from IHEA
Process Heating Education Online
IHEA’s Fundamentals of Industrial Process Heating Online Learning Course continues to provide an excellent overview of the essential areas used...
AMS2750E as it applies to Nadcap
Thorough knowledge of AMS2750E will speed implementation of new standard as it applies to NADCAP requirements
Thermal expansion of mineral oil quenchants
In this column, I will discuss the thermal expansion of oil. This information is primarily important for initial fills of a quench tank.
Introduction
Oil, when...
Furnace Atmospheres
The makeup of a furnace’s atmosphere in the heat treating process varies depending upon the application. Sensor technology allows for the in-situ monitoring of...
Q&A with Andrew Bassett
How did ATP get started?
During the early 1990s, the National Aerospace and Defense Contractors Accreditation Program (Nadcap) began embracing all special processes, and we...
The meta-stable microstructure of martensite
In this column, we will discuss martensite and its formation.
Heat treating steel involves heating the component into the austenite range. Once the part is...
Lesley Frame elected vice president of IFHTSE 2024-2026
Lesley Frame, assistant professor, Materials Science and Engineering, University of Connecticut, recently was elected IFHTSE vice president for the 2024-2026 term in Yokahama and...
Stay up-to-date with conference updates
The Third International Conference on Quenching and Distortion Engineering in Vancouver, Canada, May 5-8, will be in conjunction with AeroMat 2025. This is a...
Site Safety
We live and work around fire all day. It’s pretty much taken for granted. We cook with it, and use it to heat our...
Q&A with Chuck Faulkner
What makes attending Heat Treat 2021 an important activity for heat treaters?
ASM Heat Treat 2021 is one of the premier events globally for the...
The value of in-person industry events
For most of us, it’s been a very long time since we’ve attended an in-person meeting. But the time has come where IHEA can...
