Potential of nitrogen atomized alloy 625 in the powder bed fusion laser beam process
Powder-based metal additive manufacturing processes like powder bed fusion — laser beam use gas-atomized metal powders as feedstock material. Typically, for nickel-based alloys such...
Carburized steel mechanical properties: Bending ultimate and impact strength, test bars vs. actual parts
Editor’s note » This is part two of a three-part series on carburized steel mechanical properties.
In part one, it was determined the carburized case...
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...
The PLC-based industrial temperature control system: Design and implementation
Targeting the problem of slow response and low accuracy of the automatic temperature control system for material processing and boiler heating, a new design...
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...
A new low-pressure carburizing solution in a pit vs. traditional pit carburizing methods
Pit Low Pressure Carburizing (LPC) for case hardening of large gears is a new approach to a traditional technology. Today’s manufacturing environment demands process,...
Mechanical properties and thermal conductivity of lightweight and high-strength carbon-graphite thermal insulation materials
Thermal insulation composites are widely used in civil and military applications; however, it is difficult to achieve the synergy of multiple technical objectives such...
How to tame a plasma: Power-delivery solutions for top process issues
Film quality, throughput, yield, etch uniformity, and sidewall control all depend on the ability to ignite, maintain, and control a stable plasma. Precise, nimble...
Considerations for selecting vacuum furnace hot zone insulation materials
Over the years, there have been many variations of hot zone insulation designs for vacuum furnace hot zones and can include the following configurations...
Cryogenic processing for longer tool life
In almost every industrial trade magazine, there will appear an occasional article about “cryogenics.” Thermal Processing has devoted an annual issue to cryogenic processing...
Integrated rupture disk assemblies for cryogenic equipment and storage systems
Today, cryogenics is used to provide convenient storage of large quantities of industrial gases such as nitrogen, oxygen, carbon dioxide, argon, helium, and hydrogen...
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,...
Heat treatment of steel measurement of hardness and tensile strength
The heat treatment of steel changes its microstructure, its hardness, and its tensile strength. These issues are of utmost importance as they are closely...
Investigating a new cooling technology for electric vehicles
The electric vehicle (EV) revolution is well underway: It’s estimated the number of EVs populating U.S. roads alone will double by 2024. And though...
4D Quench: Taking aerospace to new heights
When providing heat treatment for aerospace gears and bearing components, manufacturers are traditionally left with three choices for thermal processing: continuous flow atmospheric furnaces...
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...
Industrial ion nitriding of TMS 80 micro alloyed steel parts at various plasma power...
Control of the ion nitriding process is typically based on temperature of the work piece, composition of the gas mixture, gas pressure, nitriding time,...
Additive manufacturing and its road to industrial maturity
The American Gear Manufacturers Association’s (AGMA) Emerging Technologies Committee (ETC) recently organized a show floor tour of the Rapid + TCT Exhibition (Rapid). The...
Additive manufacturing: New frontiers for production and validation
Over the last few decades, additive manufacturing (AM)/3D printing has fundamentally changed the way that manufacturers approach product development. Industry is now almost universally...
Choosing between HFC and HFDu hydraulic fluids
While both HFC and HFDu hydraulic fluids reduce fire risk, improve operation safety, and enhance environmental performance, significant differences exist. Standing at 50 to...
Carbo-nitriding of forging dies
Forging dies have to resist high mechanical and thermal loads. Therefore, they are usually nitrided. Former investigations showed that the abrasive wear at the...
Quenching: A long and varied history
There have been many myths concerning the quenchants used by ancient blacksmiths in the heat treatment of swords and knives. Various liquids have been...
Preventing oxidation in the manufacturing of copper-titanium alloys
Due to their resistant and highly conductive properties, copper-titanium alloys become increasingly important in the field of industrially manufactured electrical components such as connectors,...
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,...
Microstructure and tensile properties of Al PM prepared by novel low-pressure sintering
This article proposes a novel low-pressure sintering process contraposing to characteristics of pre-alloyed aluminum powders and analyzes its feasibility. The low pressure was set...
Case study: Partnering with the medical industry
The high-tech medical industry is one of the most demanding in terms of standards, procedures, and technical parameters that must be met by the...
The tribology of dental ceramics
Ceramics are widely used in dentistry due to their ability to mimic the optical characteristics of enamel and dentine, as well as their biocompatibility...
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...
Gas solutions for sustainable metal AM
Sustainability is a key value driver and focus for industrial manufacturing, and additive manufacturing fulfills that need in more ways than one.
Additive manufacturing,...
Carbon-neutral insulation for high-temperature applications
In January 2022, Mantec Technical Ceramics, based in Stoke-on-Trent, U.K., launched carbon neutral versions of its super-insulative Ultralite material, and this has been met...
Sophisticated control systems for optimal process operations
A comprehensive control system, whether designing a new controls package or updating your existing system to a new controls scheme, is the most effective...
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...
The science of diffusion bonding or joining together dissimilar metals
Metal diffusion bonding is an essential joining method for achieving a high-purity interface when two similar metals require superior structural integrity. The process involves...
Heat-transfer fluids: Growing in visibility and importance
The growing use of electronics in many applications is leading researchers to better understand the reasons for using heat-transfer fluids. Electronics generate substantial amounts...
Combustion optimization in gas burners of reverberatory Furnaces during nickel-alloy melting
In recent years, due to climate change, environmental sustainability programs have been created that require the search for alternatives to reduce air emissions and...
Effect of heat and cryogenic treatment on wear and toughness of HSS AISI M2
Despite the promising results obtained with cryogenic treatment of tool steels, there are still contradictions regarding its benefits, and there is no consensus regarding...
The impact of complete lubricant removal on the mechanical properties and production of PM...
The greatest hurdle in the production of powder metal components is lubricant removal. Over the years, equipment and processes have been developed to aid...
Vacuum heat treating and aluminum alloys
This study investigated the interface morphology, microstructure composition, and connection strength of 7A52 aluminum alloy-Al2O3 ceramic brazed joints under heat-treatment conditions. Alumina ceramics were...
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...
