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...

Residual Stress Distribution in an Induction Hardened Gear

A vast majority of steel gears are heat treated in order to obtain the desirable properties of a final product such as a high...

Case Study: Laser Hardening

To increase the hardness of a steel material, there are basically three required steps in the hardening process. Step one is to heat the...

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...

Nitrocarburizing Gears Using the ZeroFlow Method in Large-Volume Production

Retort-based nitriding and ferritic nitrocarburizing have been around a long time. Modern day challenges include providing known, repeatable hardness and surface case structures with...

Ion Nitriding of Ferrous and Titanium Alloys for Gear Applications

Thermochemical surface engineering is effective in improving the performance of various gears made of ferrous alloys . The cost of machining typical gears during...

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...

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...

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...

Producing Quality Parts in an Atmosphere Furnace: How to Optimize Your Quenching and...

Throughout the manufacturing process, heat treatment is consistently viewed as a critical step for adding value to the parts produced. A part expensively manufactured...

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...

Stress Generation in an Axle Shaft during Induction Hardening

Introduction Induction hardening of steel components offers a fast heating rate, high efficiency, and the ability to heat locally. Induction hardening is a highly nonlinear...

Enhanced Properties of 17-7 PH Stainless Steel

Background Precipitation-hardening (PH) stainless steel grade 17-7 PH is classified as a semiaustenitic stainless steel used extensively in aerospace and finding new applications in the...

Investigations on Tooth Root Bending Strength of Case Hardened Gears in the Range of...

Gears are one of the critical components that determine the capability and reliability of drive systems. Thus the tooth root load-carrying capacity is one...

Reducing Gear Size for Compact Transmission Design by Selecting Steel Grade and Heat Treatment...

Gears are the most important components for transmissions. In many situations, the size of a transmission design needs to be reduced without decreasing power...

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...

Case Study: SECO/Warwick and ABB Instrument Transformers

Instrument transformers are a precision device designed to accurately meter either current or voltage on an electrical circuit. They also provide a means to...

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...

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...

Heat Treat 101: A Primer

Gears play an essential role in the performance of many products that we rely on in our everyday lives. When we think about gears,...

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...

Tooth-by-Tooth Induction Hardening of Gears (and How To Avoid Some Common Problems)

Tooth-by-tooth induction hardening of gears is a complex process. Variations of any of kind may be sufficient to cause the process to run out...

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...

Heat Treatment of Large Components

Large gear components can be offered in many applications such as marine, wind power, steel rolling mills, power plants, transportation, railroad, aircraft, cement crushers,...

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...

Increased Productivity Combining C/C Fixturing and LPC

Carbon/carbon and graphite materials are used in a variety of applications throughout the high temperature furnace industry. Entire vacuum hot zones are manufactured from...

Inductive Spin Hardening of Gears: A Survey of Key Features and Benefits

A large part of the misunderstanding of induction hardening seems to stem from an incomplete grasp of the basic induction heating process. This is...

Properties of Cases Treated with High-Temperature Vacuum Carburization

Carburizing continues to be one of the basic thermochemical treatments used for industrial steel. With the development of the industry, carburizing has evolved from...

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...

Cures for Heat Treaters Headaches

Heat treaters all over the world encounter similar problems with atmosphere furnaces. These problems not only cause operational headaches in the daily lives of...

Improving Production Safely with Integrated Heat Treat and Quenching Cell

These aspects are not just requested, but increasingly required by industrial clients looking to install new thermal systems or expand or enhance existing processes...

Simulation of Gas Quenching of Steel Parts

One major difference between immersion quenching and gas quenching is the presence of boiling during the early stages of quenching in oil or water....

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...

Gas vs. Liquid Quenching: A Direct Comparison in Hardenability to Reduce Distortion

Introduction Hardenability is the ability of steel to partially or completely transform from austenite to some fraction of martensite at a given depth below the...

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...

How Gears Fail

Heat treatment plays an important — some would say critical — role in gear manufacturing. Therefore, there is a need to better understand, from...

Recent Inventions and Innovations in Induction Hardening of Gears and Gear-like Components

This paper focuses on recent inventions and innovations (from the past four-six years) in induction hardening of gears and gear-like components, including, but not...

Heat Treat Process For Gears

Heat treatment is a critical and complex element in the manufacturing of gears that greatly impacts how each will perform in transmitting power or...

Typical Heat Treatment Defects of Gears and Solutions Using FEA Modeling

Steel gears are heat treated to obtain enhanced properties and improved service performance. Quench hardening is one of the most important heat treatment processes...

Austempering: An Old Process with New Potential for Gears

The Austemper heat treat process was first developed in the 1930’s. Its application was initially limited to low volume, relatively small steel components. This has...
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