Heat treatment of gears
Often the options of heat treat may feel pre-defined when looked at from a gear designer’s perspective. There are options, but both gear designers...
An interpretable machine learning based approach for process to areal surface metrology informatics
Surface metrology parameters represent an important class of design variables, which can be controlled because they represent the DNA or fingerprint of the whole...
Women in manufacturing: Diversifying the industry
You don’t have to go very far back in time to find a point where the role of women in the manufacturing sector was...
Using FAST-forge to produce near net shape forgings from surplus AM powder
Titanium alloys are used extensively in the aerospace sector due to the good combination of high strength-to-weight ratio and corrosive resistance. Many aerospace components...
The importance of preventative maintenance
For those of you who work in heat treat every day, this will be nothing new; however, it will be an attempt to assist...
AC7102 Checklist Review, Part 5
Editor’s note » This is the final article of a five-part series that deconstructs the requirements of AC7102. Each article has appeared every other month...
The next level of hot isostatic pressing
Over recent years, the development of in-HIP heat treatment (High Pressure Heat Treatment) has led to some interesting developments, which are now changing the...
Use of plasma nitriding to improve the wear and corrosion resistance of 18Ni‑300 maraging...
Selective laser melting (SLM) is one of the most promising additive-manufacturing (AM) technologies . It is a powder-bed fusion process, where a high-power laser...
How to properly debind parts produced by metal AM
Additive manufacturing is a manufacturing technology that is gaining more and more ground among metallurgists. The process involves all the techniques used to create...
Titanium alloy microstructure fingerprint plots from in-process machining
Titanium alloy components require several machining stages of forged billets, which are supplied in a range of annealing conditions. Generally, the machining performance is...
Enabling a better custom ceramic fabrication
Ceramic structures filled with tiny macroscopic pores play an important role in industrial and biomedical products, but they’re also notoriously difficult to fabricate.
A Cornell...
AC7102 Checklist Review, Part 4
Editor’s note » This is the fourth of a five-part series of articles that will deconstruct the requirements of AC7102. Each article will appear every...
The subtleties of induction processing
Inductoheat was recently asked to conduct three technical video seminars on modern induction thermal technologies for automotive industry:
• The first seminar was April...
Improving the mechanical properties of medium carbon steel
Quenching is one of the major processes of heat treatment of medium carbon steel that aims at improving its mechanical properties. However, the effectiveness...
Carburizing clean with Method 4
The existing model for removing soot from a furnace is a burn-out consisting of three methods:
Method 1: Remove the load, lower the furnace temp,...
Focusing on advanced PM manufacturing methods
“Times and conditions change so rapidly that we must keep our aim constantly focused on the future.” — Walt Disney
How appropriate. Over the years,...
Microstructure and properties of tungsten-heavy alloy connections are formed during sintering with the participation...
Tungsten heavy alloys (THA) are used in the defense industry for subcaliber bullet cores due to their high density and strength. Typically, methods of...
AC7102 Checklist Review, Part 3
Editor’s note » This is the third of a five-part series of articles that will deconstruct the requirements of AC7102. Each article will appear every...
Using the correct thermocouple
The principles behind how and why a thermocouple functions were beginning to be understood in the early 1800s with most significant developments taking place...
Preventing eutectic reactions and diffusion bonding in vacuum processing
The purpose of this article is to explain reactions that can occur during a vacuum processing cycle and different methods of preventing these reactions....
Effect of heat-treatment conditions on the mechanical properties and machinability of Ti15SnxCu alloys
In the current work, the microstructure, mechanical properties and machinability of Ti15SnxCu alloys (x = 0 to 2 wt. %) were investigated. The alloy...
The advantages of pulse plasma nitriding
In the gear manufacturing industry, when case-hardening, tempering, or nitriding the surface of steel, whether for gears or gearboxes, the options have traditionally included...
Oxide-oxide ceramic matrix composites enabling widespread industry adoption
Oxide-oxide ceramic matrix composites are gaining increasing attention as a mainstream material option for high-temperature components in the aerospace and advanced energy sectors. As...
AC7102 Checklist Review, Part 2
Editor’s note » This is the second of a five-part series of articles that will deconstruct the requirements of AC7102. Each article will appear every...
Optimizing process operations
In integrated control system is the most effective way to enhance any complex industrial manufacturing process. A well-designed control system not only ensures greater...
A posteriori reconstruction of the temperature distribution in surface hardened tempering steel
Process control in surface hardening depends greatly on the repeatability of the results. Induction heating facilities stand out in this aspect but challenges arise...
Case Study: New temperature control system delivers precision, efficiency, and flexibility
Clifford-Jacobs is a nearly century-old producer of die forgings. When the company needed to improve its process controls on its heat-treating furnaces, it turned...
Combustion behavior and mechanism of Ti14 titanium alloy
The combustion behavior and mechanism of Ti14 titanium alloy are studied by promoted ignition combustion tests at different oxygen pressures. The burning velocity increases...
Innovation for saving energy and improving output
The harsh economic climate of 2020 had a direct impact upon ferrous and non-ferrous metal producers, as well as those companies involved in the...
AC7102 Checklist Review, Part 1
Editor’s note » This is the first of a six-part series of articles that will deconstruct the requirements of AC7102. Each article will appear every...
Electrical heating in vacuum applications
Applying electrical heat to materials under vacuum can be an important manufacturing process to ensure product quality when drying, high-purity processing or other vacuum...
Can sub-zero treatment at minus-75°C bring any benefits to tool manufacturing?
Vanadis 6 ledeburitic tool steel was subjected to sub-zero treatment at minus-75°C for different durations and for different subsequent tempering regimes. The impact of...
Stronger ‘shaped’ wire belt stands up to rigors of heat treating
Whether for automotive, aerospace, or heavy equipment, manufacturers using heat treatment — which can reach temperatures up to 2,400°F and vary from a few...
COVID-19’s effect on PRI / Nadcap
At this point in 2020, we have all felt the effects of the COVID-19 pandemic both personally and professionally. As of the writing of...
Performance and Properties of a new Alternative Gear Steel
In the ongoing strive for light weighting or power densification, high-performance clean steels are showing a significant improvement. As a next step, gear steels...
Maintaining uniform target temperature
There are various processes where temperatures and other operating parameters in the oven must be controlled accurately in real-time with minimal delays. Taking a...
Rex Heat Treat
Rex Heat Treat has been involved in projects that have plumbed the depths of the Gulf and explored the landscapes of Mars, and yet,...
Low pressure carburization modeling with carbide formation and dissociation
Low pressure carburization (LPC) processes are becoming more widespread throughout industry due to the reduced cycle times and the control over the carbon profile...
Case study: Insights on a Nadcap accreditation
How did you first hear about Nadcap, and why did your company decide to pursue Nadcap accreditation in the first place?
Braddock Metallurgical was partnered...
Ceramic fiber module lining installation on a curved vessel wall
Ceramic fiber modules have been implemented in thermal oxidizer units (TOU) and vessels for more than 50 years, and they have become ubiquitous as...
