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....
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...
AMS2750F contains key pyrometric changes
By now, most heat treaters should have had some time to read the new revision of AMS2750. The changes are extensive and, since it...
Process quality control in heat treatment
In thermal processing, process quality control is imperative to produce and control conforming product and overall conformance. In this article we will be examining...
Pyrometry, Industry Standards, & Temperature Uniformity Surveys
In its simplest sense, pyrometry is the measurement of temperatures. Practically speaking, in the business of heat treatment, the term also refers to the...
Gas Nitriding
In general, nitriding of parts involves a thermal process that provides a tough, corrosion-resistant, and wear-resistant surface with less distortion compared to other case...
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...
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...
The importance of contract review
Within any aspect of our business structure, understanding the specific requirements needed to produce product that conforms to customer requirements is important. These requirements...
AMS2750E, Nadcap requirements
When I consult, I will periodically perform a gap analysis on a supplier’s heat-treat process to either obtain Nadcap approval or as a check-and-balance...
Understanding gas composition
Evaluating furnace atmospheres for proper gas composition is the key to desired performance results
Atmosphere furnace control
Proper temperature is crucial to part quality, but don’t overlook its effect on atmosphere control
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...
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...
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...
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...
Furnace atmospheres and temperature
Getting the Right Protective and Carburizing Atmosphere
The makeup of a furnace’s atmosphere in the heat treating process varies based upon the application. For carburizing,...
AMS2750 pyrometry revisions tweak a crucial process
AMS2750 pyrometry is a daunting heat-treat special process requirement in the aerospace industry. It’s a literal definition implying measurement of temperature, but it also...
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...
An argument in support of Nadcap
I think it is safe to assume that the majority of Thermal Processing readers have, in some capacity and at some point in their...
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...
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...
Getting Control — Let’s Start with PID
It does not matter what thermal treatment work piece requires, proper control is the foundation for repeatability and quality processing. For heat-treating processes, there...
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...
Thermal Process Modeling
Thermal process modeling has been a hot topic in the heat treating community over the past few years. The project conducted by ASM International...
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...
Quality Counts: Producing Endothermic Gas Efficiently
One of the critical elements in the carburizing process is the ability to create a base atmosphere suitable for the parts placed inside a...
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...
Heat treating from the operator’s perspective
Often, a customer visit involves a walk through the facility. Comments are made about how clean it is or how well organized a process...
Quality management is vital in heat-treating
Quality management in the thermal-processing industry is essential to not only conformance, but also as a check-and-balance to both systems and operations. Quality at...
Method means comparing checklists vs. procedure
Whether commercial heat-treating or captive, procedures are essential to the production of conforming product and its repeatability. Procedures can be challenging to write at...
AMS2750E as it applies to Nadcap
Thorough knowledge of AMS2750E will speed implementation of new standard as it applies to NADCAP requirements
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...
Process automation and controls for carburizing
Process control can be defined as the ability to meet certain parameters over time using inputs from the process and controlling outputs for desired...
‘Say what you do, do what you say’
In the special process world of the aerospace industry, companies with requirements of aerospace manufacturing must rely on the accreditation of AS9100 and the...
Control technology
There are many demands for precision manufacturing of steel components. Heat treatment is a critical step in nearly all manufacturing processes to achieve required...
The paradox of work and happiness
There are obviously a lot of factors that go into making a company successful. Probably the biggest factor is the people who work there....
The art of leading the heat-treat team
Leadership is about guiding the team toward the best opportunities and taking action toward getting the required task done. But success can come down...
The State of Process Controls
It is hard to find a market segment that has not benefited from technology advancements. Heat-treating process control is no different. While there are...
Compliance via internal procedures
Verification of compliance is two-fold; witnessing operations being performed in accordance with internal procedures. As long as procedures are followed, the challenge in conformance...
