Flame Hardening Gears

Long gone are the days when a machine operator sat in a dark corner of the shop staring at the cherry red glow of...

Vacuum Carburizing Large Gears

Throughout the machining process, great care is taken to achieve and maintain critical dimensions. The gears are then handed over for heat treatment. Exposing...

Advantages of Induction Hardening with No Soft Zone on Large Bearings

Large bearings are required to carry large axial and radial forces and their resulting torques. Typical applications include general machinery and construction equipment, as...

Case Study: Phoenix Contact and Ipsen

Ipsen supports its equipment across the globe using the mGuard VPN router from Phoenix Contact, which allows secure remote access via the Internet. Ipsen designs...

Take Another Look at Deep Cryogenic Treatment

What is happening in the world of Deep Cryogenic Treatment (DCT)? Research into this field is exploding. Research is coming from companies and major...

Rapid Stress Relief and Tempering

Stress relief and tempering are important processes, but they are still conducted much as they have been for the past 50 years. However, advanced...

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...

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...

How to Avoid Heat Treatment Problems When Launching New Gear Programs

So you’ve just secured an exciting new gear-manufacturing project and it’s time to start production planning. Heat treatment, such as carburizing, hardening and tempering,...

Selecting Industrial Vacuum Pumps

An analytical guide to the down-select process.

Detrimental Effects of Sulfur on Transverse Impact Properties in Steel Forgings

Anyone who has supplied or processed forgings for the power generation, oil and gas, or shipbuilding industries, among others, is familiar with Charpy impact...

Getting the thermal treat results you want

How aggressive quenching and other drivers lead to high performance

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...

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...

Tighter Control Through Understanding What Your TUS Reports Are Telling You

Temperature uniformity is the temperature variation (usually expressed as ± degrees) within the qualified furnace work zone (Figure 1) with respect to a set...

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...

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.

Company Profile: Lindberg/MPH

Lindberg/MPH has been around for over 100 years. During that century, it has changed hands and names, but since it became part of Thermal...

Optimizing Temperature Measurement in Heat-Treatment Operations

Quality and efficiency in heat-treatment operations requires accurate temperature measurement. Specifying thermocouple wire and thermocouples carefully will lead to greater temperature measurement accuracy and...

Process control, monitoring, and quality assurance specifics for induction heating

Controlling the induction-hardening process is a demanding application compared to most other thermal processes. The first and foremost requirement is to precisely control the...

Coupling CFD and Oil Quench Hardening Analysis of a Gear Component

Today, powertrain development is driven in the direction of weight reduction by replacing heavier components with low-cost or higher strength alloys for industries such...

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...

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...

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...

Filler metal control in sinter brazing

The control of the filler metal at the braze joint of a sinter brazed product has significant impact on the quality and yield of complex shapes.

Heat Treating Education

In a recent paper by Janusz Kowalewski of Ipsen at the 3rd International Conference on Heat Treatment and Surface Engineering in Automotive Applications held...

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...

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...

Contour Hardening Bevel, Hypoid, and Pinion Gears

Traditional gear heat treatment involves gas carburizing in batch or continuous furnaces for an extended time, and then oil quenching. The gears are typically...

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...

Cryogenic process and application to ferrous alloy

Cryogenics or sub-zero treatment is the third parameter required to achieve maximum hardness in ferrous alloys.

The Future of Kiln Lining

Lining iron and steel furnaces is critical to extend the life of the furnaces and to protect the purity of the metals being heat...

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...

Temperature and accuracy

Three basic steps that can help in selecting the right thermocouple wire.

Advanced Robotics Combined with Eddy Current Testing Offers Verification Methods for Heat-Treated Gears

Eddy current is a nondestructive testing technique proven for use in heat treatment and material structure verification. Modern multifrequency eddy current instruments can test...

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...

Extending Performance

Metal gears and precision components of all types are in growing demand for robotics, particularly in industrial sectors such as automotive, aerospace, and machinery....

CASE STUDY: Company: Praxair Distribution, Inc. Customer: ALD Thermal Treatment, Inc.

In the past several years, heat treating companies have experienced a significant supply disruption in generated acetylene. Additionally, generated acetylene may not offer the...

Nonlinear electromagnetic acoustic testing method for tensile damage evaluation 

This paper describes an approach for measuring material plasticity using contactless electromagnetic acoustic method. Harmonic generation from noncumulative fundamental longitudinal wave in specimen is...

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...