Wednesday, July 15, 2020

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...

The heat treatment of aluminum – Introduction

Aluminum’s many desirable properties, such as high strength-to-weight ratio, good corrosion resistance, ease of processing, and low cost, make it a very widely used...

Gap analysis can guide procedure changes

Well-designed procedures are crucial to any business operation, whether it’s a simple task of following a procedure to construct a cardboard box, or something...

Nonlinear distortion response during gas quenching

High-pressure gas quenching (HPGQ) is touted as a way to reduce distortion of difficult-to-quench geometries. Quench pressures and quench gas flow velocities are chosen...

The art of heat treat: The framework

I was once taught that heat treat is an art as much as it is a science in achieving the results required for the...

Q&A with Robert Antolik

What’s a typical day like for you at Applied Test Systems (ATS)? Things have changed quite a bit lately due to COVID-19. But, in general,...

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...

Understanding the technology is key to proper use

I teach pyrometry courses throughout the year and, when I do, I include a thermocouple tutorial video from YouTube. In this video the function...

Troubleshooting induction hardening problems: Part 2

Last month, I began a two-part article about troubleshooting induction hardening problems and discussed possible corrections. This month, I will discuss biological and odor...

Surface stress is key in rolling contact fatigue

Most bearing failures can be attributed to some form of rolling contact fatigue. Many factors influence rolling contact fatigue, but two main factors are...

Troubleshooting induction hardening problems: Part 1

Induction hardening is a unique method used to harden steels. The process uses a power supply, RF generator, induction coil, and quenching mechanism (spray...

Willingness to change course leads to satisfying career

Editor’s note: Beginning with the March issue of Thermal Processing, we added Tony Tenaglier, a heat treat process engineer at Hitchiner Manufacturing, as a...

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...

Predicting hardness by the Grossman H-Value

In the last article, we described a method of calculating the Grossman H-Value . In the article before last, we described a method of...

The life of a heat treat process engineer

Editor’s note: Beginning with the March 2020 issue of Thermal Processing, there will be multiple contributors to the Quality Counts column. Conrad Kacsik’s Jason...

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...

Q&A with Chris Stevens

What’s a typical day like for you at Dalton Electric? It starts and ends with our customers. Our value proposition to our Dalton users is...

Simulation tools to effectively calculate process

One common goal for a wide range of industries has been to increase power density in shaft and gear components. The steel producing industry...

Determining Grossman H-value from cooling curve data

In the last article, I described how the Jominy end quench test could be used to predict hardness for a series of different round...

Quality review: Heat-treat related certifications

As heat treaters, we must admit that, at the end of the day, what we feel we are paying for is a certification that...

Determining austenite grain size

Grain size is a critical metallurgical characteristic, significantly influencing design parameters such as strength and toughness. Austenite grain size (often referred to as prior-austenite...

Q&A with Justin Sims

Who is Dante Solutions, and what do you do with the company? Dante Solutions is an engineering company with a main focus on improving heat...

Determining heat-treat operator training

With the fast pace of change in the heat-treat industry, it is understandable that more automation is in demand. This automation inevitably improves repeatability...

Understanding the Jominy end quench test

The Jominy end quench test (ASTM A255 ) is an extremely simple and useful test that is applicable to many materials besides steel...

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...

ASTM E18 and Nadcap: Rockwell hardness testing

Rockwell hardness testing is a common way to ensure the material response to heat treat is conforming and is required by applicable industry and...

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...

Q&A with Jeff Marshall

What does MHV do for the heat-treat industry? We make our customers more competitive, which is good both for the customers and for the industry...

Microstructural evolution, its effect on Ti6Al4V alloy

Titanium alloys are extensively used in aerospace, petrochemical, marine, and medical applications, thanks to their superior strength-to-weight ratio at elevated temperature, corrosion resistance, and...

Purchasing a furnace: Quality concerns to consider

For any heat-treater, whether captive or commercial, purchasing a furnace is the largest investment that can be made. It is important to establish a...

Developing a superalloy with superior heat resistance

Demand for superior machinery that can operate effectively under extreme conditions is driving the development of newer alloys. One significant example is the preparation...

Achieving results through cold treatment

Cold treatment is a sub-zero thermal treatment process primarily used to reduce the retained austenite content of alloy and high carbon steels. Cold treatment...

Q&A with Heat Treat 2019 attendees

HEAT TREAT 2019, is scheduled to hit Detroit, Michigan, October 15–17. The show will bring thousands of industry experts and insiders to the motor...

Quality staff: Understanding the technical side

Last month, we examined the history and heat-treatment of aluminum and how it applies to the quality functions of the industry. This month, we...

Q&A with David Wolff

What’s a typical day like for you at Nel Hydrogen? I’m in field sales and work with customers to make sure their process needs that...

Creep deformation mechanisms in 9CrMo steel

The Generation-IV reactors in nuclear power plants are expected to address the growing energy demand by producing electricity and, at the same time, mitigating...

Aluminum heat-treating has unique challenges

From a metallurgical and quality perspective, aluminum heat-treating presents unique challenges when compared to carbon-based steels. This article will examine the aspects of aluminum...

Q&A with Adam Jacobson

What’s a typical day like for you at JN Machinery? We’re a small company, so, it really depends on what’s going on as far as...

Combatting undesirable NMTP formations

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,...

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....
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