Thursday, July 29, 2021

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...

Bringing forging equipment online to meet expanding production requirements

When forging operations need to expand production to meet increased demand for existing parts or to add new product lines, selecting from the available...

Advantages of wire-arc additive manufacturing

The concept of additive manufacturing has been around for a century, but with the advent of sophisticated software and robotics, the process is fast...

Does nitriding improve the corrosion and wear properties of additive manufactured stainless steel?

Many industrial processes require a stable heat source to generate end-products. Heat transfer fluids (HTFs) are commonly used in such processes as heat carriers...

A study of temperature effect on properties of nitride layers on X37CrMoV51 tool steel...

The paper concerns the effect of annealing time and temperature on the properties of the nitride layer on X37CrMoV51 tool steel used in the...

The cutting edge of thermal processing in a forge environment

Scot Forge is a 128-year-old, 100-percent employee-owned forging company that works in multiple markets from large defense, aerospace, power generation and mining projects to...

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...

Case study: Determining the cause of cracking using computer modeling

During an induction-hardening process, the part surface is heated using a medium- to high-frequency inductor. Once the desired depth of austenitization is reached, the...

4D high-pressure gas quenching

Thermal processing and quenching of steels for hardening is a well-established practice performed by various techniques over the centuries. A common thread has been...

Heat Treatments and Critical Quenching Rates in Additively Manufactured Al–Si–Mg Alloys

Laser powder-bed fusion (LPBF) has significantly gained in importance and has become one of the major fabrication techniques within metal additive manufacturing. The fast...

Commercial sintering of chromium powder metallurgy (PM) steels

Chromium was introduced as a potential alloying element for powder metallurgy (PM) steels in the 1990s. Since then, numerous chromium-containing alloy systems have been...

Laser sintering of thermoset polyimide composites

Selective laser sintering (SLS) is an additive manufacturing technique that builds 3D models layer-by-layer using a laser to selectively melt cross sections in powdered...

Going viral: Outside-the-box research into sterilizing N95 masks for re-use

With the COVID-19 pandemic still raging across the country and the world, the need for personal protective equipment for medical professionals has pushed the...

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...

Heat work to the fore

Sporting its new tagline — Enabling a Clean, Efficient & Electrified Future — the highly regarded Ceramics Expo will once again head for Cleveland’s...

Spectroscopic study of plasma nitrocarburizing processes with an industrial-scale carbon active screen

The active screen plasma nitrocarburizing technology is an improvement of conventional plasma nitrocarburizing by providing a homogeneous temperature distribution within the workload and reducing...

Pyrometry – A Different Take

Any article on pyrometry, as it applies to AMS2750 and thermal processing, usually gets a lot of attention. Typically filled with interpretation, clarification, and...
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