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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
You can’t overlook the process
Cycle verification identifies thermal nonconformance, ensures deviation from requirements is reported
Atmosphere furnace control
Proper temperature is crucial to part quality, but don’t overlook its effect on atmosphere control
Understanding gas composition
Evaluating furnace atmospheres for proper gas composition is the key to desired performance results
AMS2750E as it applies to Nadcap
Thorough knowledge of AMS2750E will speed implementation of new standard as it applies to NADCAP requirements
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...
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...
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...
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...
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...
