A technical guide to quenching
From a quality perspective, verification of the conformance of quench requirements can be accomplished by examining a furnace chart that shows the quench trend....
Allocating space for case hardening furnaces
When selecting neutral or case hardening furnaces that require pits and have vertically mounted radiant tubes, facility managers must make sure that the equipment...
IHEA Combustion Safety Training: One-Day Safety Standards and Codes Seminar
Explosions and fires in industrial heating systems can result in injury or loss of life, as well as loss of property and production. Understanding...
Q&A with Susan Heinauer
Thermal Processing welcomes its newest sales representative to its staff, Susan Heinauer. She has more than 20 years of experience in sales and promises...
Microstructural effect of Alloy 718 on fatigue strength
Gas turbine engines are widely used in aviation, power generation, and oil and gas industries. They are used in land, air, and marine. The...
Q&A with Steve Mueller
Now that you are with Linde, what’s a typical day like for you?
We (Praxair) merged with Linde, and we are now all under the...
Good habits, a solid system can help avoid mistakes
The contract is the first piece of paper you receive with incoming parts prior to processing. This is the purchase order (PO) that details...
Q&A with Lauren Jones
Why is it important to invest in the future of heat-treating?
Nearly every metal component undergoes some type of heat-treating application. Vacuum furnaces contribute to...
IHEA grows its sustainability and decarbonization initiatives
With the popularity and success of this summer’s Sustainability & Decarbonization webinar series, the Industrial Heating Equipment Association (IHEA) announces an expansion of the...
Troubleshooting induction hardening problems – Part III
In previous columns, I have provided some detail on the sources of problems with induction hardening. While I have tried to be inclusive, there...
Q&A with Roseanne Brunello
What do you and Mountain Rep do for the heat-treat industry?
Mountain Rep is a manufacturing rep firm that has been in business for 35...
Q&A with Joe Stambaugh
Pease tell us a little about your background and company.
My education was in electromechanical technologies. I have spent my 40-year career working in the...
Member spotlight: Chiz Bros. provides exceptional customer service and engineering expertise
Chiz Bros. Refractory & Insulation Specialists is excited to become a member of IHEA this year. Founded in 1968, the company began as a contractor in...
Heat treatment of aluminum Part VII – Hardness and conductivity
In the previous article, we discussed the artificial aging of aluminum. Once we have heat treated the parts, we need to verify the properties....
Salzburg conference to commemorate IFHTSE’s 50th year
The 27th IFHTSE Congress will be in Salzburg, Austria, September 5-8, 2022. This is going to be a very special event, as it will...
Carburizing
While some heat treatments are used to soften the material or improve its machinability, most are processed to obtain strengthened or hardened properties. The...
Q&A with Jeff Opitz
Tell us about GraphiteInsulation.com?
GraphiteInsulation.com is a vehicle for us to narrow our focus to graphite insulating products, mostly used for vacuum heat treatment...
Keeping your burners tuned
The backbone of any atmosphere furnace is the heating system. The heating system plays an essential role in keeping the furnace operating at peak...
The metallurgical R&D laboratory
Remembering old-school lab work is a blast from the past
Hardenability – the influence of tramp elements
Hardenability is the property of a material to deeply harden, and not the ability to get hard . This basic concept has driven much...
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...
Fatigue failures in nickel-based austenitic Superalloy 718
Superalloy 718 is widely used for aerospace, nuclear, power generation, metal processing, medical, material processing, and chemical and petrochemical industries due to its excellent...
Cooling rate after tempering
In this column, I will discuss the effect of cooling rate after tempering.
Introduction
During heat treatment of steel, the process is generally austenitize, quench, and...
Revisiting the 1:1 Rule for oil quenchants
The rule of thumb “one gallon of oil to one pound of parts and fixtures” has been in the literature for a long time....
Member spotlight: Karl Dungs markets combustion controls
Karl Dungs, Inc, a subsidiary of Karl Dungs GmbH & Co. KG, was established in 1997 as the Dungs sales channel for the North...
QA 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...
Quench Factor analysis used to predict properties of quenched and aged aluminum
In this column, we will start to discuss the application of Quench Factor Analysis (QFA) to predicting properties of quenched and aged aluminum.
Quench Factor...
Be attached to process, not results of Nadcap audit
The dreaded Nadcap audit. The daunting AC7102 main checklist with 10 job audits. The strict requirements of AC7102/8 pyrometry adhering to AMS2750. The additional...
At your own pace, in your own space: IHEA offers Fundamentals of Industrial Process...
Registration is open now for IHEA’s Fundamentals of Industrial Process Heating Online Learning Course beginning April 15, 2019. The course is ideal for students...
4th International Conference on HTSE of Tools and Dies successfully held online
This first online global IFHTSE conference was hosted by member China Heat Treatment Industry Association (CHTA) and co-organized by Harbin Institute of Technology and...
Q&A with Max Dubin
What’s a typical day like for you at Across International?
As sales development, I act as the intersection between the products our engineers design, our...
Non-Martensitic Transformation Products (NMTP)
Whether formed during a conventional quench and tempering process, carburizing, or induction hardening, non-martensitic transformation products (NMTP) are widely considered undesirable microstructural features. However,...
IHEA offers 2021 Virtual Spring Safety Standards & Codes Seminar
After the success of a series of virtual seminars last fall, the Industrial Heating Equipment Association (IHEA) has scheduled a virtual Safety Standards &...
Zoltán Koloszváry appointed honorary president of IFHTSE
For the first time in 30 years, IFHTSE has appointed an honorary president. Honorary presidents have rendered outstanding and continuous service to the Federation...
Stress modeling of the WAAM process
A thermal model was previously developed and executed to simulate the Wire Arc Additive Manufacturing (WAAM) process, using the Goldak Flux Distribution to model...
Celebrating 50 years of IFHTSE in 2022
The 27th IFHTSE Congress will be in Salzburg, Austria, September 5-8, 2022, at the Wyndham Grand Salzburg Conference Center. This is going to be...
A brief history of the non-ferrous alloy aluminum
Non-ferrous alloys have caught my interest throughout my career, particularly aluminum. From its resistance to corrosion to its sensitivity at elevated temperatures, it is...
Why is modeling the immersion process so important?
Liquid quenching of long steel components can introduce significant distortion if the component is not lowered into the liquid quench bath properly. Whether the...
Heat treatment of aluminum, Part V
After quenching and any straightening, the supersaturated solid solution of aluminum wants to reach equilibrium. It does this through the process of precipitation hardening....
The Right Prepared Atmosphere
Furnace atmospheres are critical to meeting metallurgical specifications defined by control processes. The makeup of a furnace’s atmosphere in the heat-treating process varies based...
