What ISO 17025 certification means for the heat-treating industry
ISO 17025 standards within the heat-treating industry are important when it comes to methods of calibration.
This is especially important at BASF, a company whose...
New Simulation Software Tool Successfully Used in Carburizing Gears
In 1999 when the Center for Heat Treat Excellence (CHTE) was formed, the idea was to develop collaborative research between the industrial sector and...
Finite element modeling and simulation of vacuum brazing processes
Vacuum brazing is a black box process, so component distortion that occurs during heat treatment is difficult to prove experimentally. Thus, a novel FE-model...
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...
Some Basic Mathematical Elements On Steel Heat Treating: Modeling, Freeware Packages And Numerical Simulation
Every year since 2007, in June, a Modeling Week is held within the master program of the faculty of Mathematics of Universidad Complutense of...
Nitrogen gas quenching pressure effect on BS S155 alloy steel in vacuum furnace
The production of metal and alloy products requires the use of heat treatment. During the heat-treatment process, quenching is a crucial step. The quenching...
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...
Controlling Distortion in Heat Treatment Through Press Quenching
Introduction
Press quenching is a specialized quenching technique that may be utilized to minimize the distortion of complex geometrical components during heat treatment1. Distortion is...
Temperature sensor selection: The basics of temperature measurement using thermocouples
You are probably somewhat familiar with the thermocouple, or you wouldn’t be reading this article. But there are important points about thermocouples that must...
Understanding pyrometry 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...
Machining graphite components
The various forms and fixtures used in vacuum furnaces and various sintering operations nearly all require graphite. Machining some of these graphite components can...
Using polymer quenchants in an integral quench furnace
There have recently been several inquiries regarding the use of a polymer quenchant in a sealed or integral quench furnace. There are several drivers...
Hardening of Powder Metallurgy Parts 101
Powder metallurgy (PM) is unique in that one has the ability to create a process system (alloy, process steps, and secondary operations) specific to...
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...
Efficient Gas Heating of Industrial Furnaces
There are various types of high-efficiency gas burners and radiant tubes currently on the market, and economic tools can be used to assess investments...
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...
Plasma nitriding as a low-nitriding potential process
Plasma/ion nitriding is a process that can be easily applied to various high-alloy steels. Some of these steels — for example M-2, S-7, D-2,...
Aerospace Testing & Pyrometry
With its motto, “Profit from our knowledge because quality is our standard,” Aerospace Testing & Pyrometry keeps a laser focus on aerospace pyrometry compliance and a top priority on the customers it serves.
Analysis of Heat Treat Growth on Carburized Ring Gear and Multivariate Regression Model Development
In gear manufacturing and machine assembly, dimensional stability of each component and conformance to print requirements are of critical importance. During processing, dimensional changes...
New Cooling Tower Technology Augments HVAC and Industrial Processes
Recent developments in factory-assembled cooling-tower technology are increasing the applications for so-called “package” towers supporting HVAC and industrial processes. Although field-erected towers have been...
High-efficiency gas burners make good economic sense
Even though the price of natural gas is currently low, the investment in high-efficiency gas burners makes sense economically. This article discusses different types...
Diffusion bonded printed circuit heat exchangers for severe environments
Traditional plate or shell and tube heat exchangers have long been used in processing industries. Today, however, with many new applications involving high pressures,...
Infrared Temperature Measurement Theory and Application
An infrared thermometer measures temperature by detecting the infrared energy emitted by all materials at temperatures above absolute zero, (zero degrees Kelvin). The most...
Deep Cryogenic Treatment
What is deep cryogenic treatment? Deep cryogenic treatment (DCT) of steels and other materials is a distinct process that uses the application of extreme...
What pyrometer users need to know
Radiation thermometry, also known as infrared pyrometry, optical pyrometry, or simply pyrometry, is a non-contact temperature measurement technique that requires measurement of some portion...
A Time-Compressed Numerical Approach for Thermal Analysis of Preheating Process in Powder Metallurgy
Introduction
Recent developments have been made in the field of powder metallurgy of materials to obtain advanced properties as compared to conventional manufacturing of materials...
Optimizing Case-Depth Uniformity in the Vacuum Carburizing Process
Over the past few decades, the vacuum carburizing process has been proven to produce superior part quality. In addition, the use of vacuum technology...
A review of lubricant removal systems and the latest technology
Whether a component is produced through binder-jet additive manufacturing, metal injection molding, or conventional press and sintering, lubricant removal continues to be one of...
Cryogenic process and application to ferrous alloy
Cryogenics or sub-zero treatment is the third parameter required to achieve maximum hardness in ferrous alloys.
Experimental research of a small-scale industrial furnace with regenerative disc-flame burners
Regenerative combustion technology has many advantages such as fuel saving, high combustion efficiency and low emission, and it has been widely used for large-scale...
Reliable Vacuum Supply for Plasma Nitriding
Plasma nitriding is becoming more and more important for heat treatment.
Sintering experiments under way on International Space Station
Gravity is a nonuniform stress that influences sintering densification, microstructure evolution, final properties, and dimensional uniformity. An early conjecture was that in the absence...
Reimagining the steel production process
Steel has a major impact on everyone’s lives and our economy. It is crucial to cars, trucks, airplanes, buildings, and more. However, there is...
Advancements in powder DED
Powder DED, or directed energy deposition, has become a useful and economical tool within the world of metal-based additive manufacturing. Advancements within the process...
Understanding the Cooling Curve Test
When a hot component comes in contact with the liquid quenchant, there are normally three stages of quenching. There are exceptions to this, which...
Enhanced thermal sensitivity in a single metal thermocouple
Single metal thermocouples (SMTs) have recently been developed with a new design concept of width-engineering of metal segments. In such designs, two segments of...
Carburized steel mechanical properties: Case tensile strength
Editor’s note » This is part one of a three-part series on carburized steel mechanical properties.
Carburizing is a mature heat-treating process commonly used for...
The effects of sintering temperature and atmosphere on stainless steel
So far, unlike metal injection molding (MIM), conventional powder metallurgy technology (PM) has not been regarded as a method for producing structural elements from...
Inductive Fixture Hardening and Tempering Process for Dimensionally Accurate Parts
Automobile manufacturers increasingly require components with greater accuracy for use in sophisticated applications. To meet these increased requirements, press hardening was developed, and there...
Mathematical Modelling of the Vacuum Carburizing Process
CAs expectations regarding the quality and precision of products continue to grow, further advances in materials engineering are strictly associated with the use of...
