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...
Heat treatment of PM parts by hot isostatic pressing
Several advantages can be seen by using pre-stressed wire-wound hot isostatic presses for consolidating of metal powder.
Energy and material efficiency of steel powder metallurgy
Concern about global warming motivates the reduction of greenhouse gas emissions from manufacturing, but the environmental impact of the whole powder metallurgy production chain...
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...
Case Study: Cost effective, low distortion carburizing of internal helical ring gear for transmissions
There are many critical factors that are assessed when designing a gear that will be used in demanding applications such as engines or transmissions....
Buying a New Lab or Industrial Furnace
When the time comes to purchase a new lab or industrial furnace, there are several points that need to be considered before going out...
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...
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...
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,...
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...
Plasma/ion nitriding for enhancing component properties
Thermochemical surface treatments, such as plasma/ion nitriding, are effective ways of enhancing the mechanical properties of ferrous and titanium alloy parts . Through the...
Freezing Out the Competition
Most companies are looking for a secret that can help them keep a step ahead of the competition — a little edge to run...
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...
Intelligent Gas Carburizing with Super IQ ™
Atmosphere furnace or vacuum furnace, which to use? In carburizing, for instance, the workhorse furnace is the atmosphere gas carburizing furnace with integral oil...
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...
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...
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...
Optimizing Gas Supply for Industrial Lasers
Laser cutting of metals and other materials has grown rapidly due to developments in laser power, advancements in CNC automation, and decreasing costs. The...
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...
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...
Combining cleanness, strength, and toughness for affordable power densification in steel components
Increased power density in mechanical power transmission components means greater durability — allowing existing designs to achieve greater capacity or reduced size and mass...
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...
Effects of the Composition of Ca-Rich Inclusions on Tool Wear Mechanisms During the Hard-Turning...
This study describes the influence of the steel characteristics of Ca-treated carburizing steel grades during hard part turning of synchronizing rings in gearbox production....
Using vanadium alloys
Vanadium is a commonly used alloying element in high strength low alloy (HSLA) steels because it improves strength and wear resistance through the precipitation...
Additive manufacturing and gas technology applications
As the demand for additive manufacturing (AM) products has steadily increased, so have the many enabling technologies including laser powder bed fusion, laser metal...
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...
Single-piece flow case hardening can be worked into in-line manufacturing
Case hardening by carburizing is the most common heat treatment in mass production, which relies on atmosphere or vacuum carburizing followed by oil or...
Vacuum Diffusion Pumps
Vacuum diffusion pumps come in a variety of sizes and are capable of producing high vacuum in a range from 10-2 to 10-10 torr....
A Case for Acetylene Based Low Pressure Carburizing of Gears
Low pressure carburizing (LPC) is the technology of choice for the precise carburizing of high-performance gearing . To achieve absolute process repeatability and the...
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...
Improved Materials and Enhanced Fatigue Resistance for Gear Components
For decades, the gear industry has addressed the challenge to produce high-performance components in a cost-effective manner. To meet design intent, vehicle transmission components...
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...
Single-Piece, High-Volume, and Low-Distortion Case Hardening of Gears
Global output of the automotive industry reached 86 million vehicles in 2014. Each vehicle is fitted with a transmission gearbox (see Figure 1). Ninety...
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...
Noise in instrumentation circuits
How to control and understand “noise,” as well as installation considerations.
Hybrid Forging: Advances in Open Die and Closed Die Forging
Today’s high-strength material users are increasingly obliged by everyday economic and competitive realities to seek alternatives to their current manufacturing processes. The reality that...
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...
Vacuum heat treatment for additive manufacturing
Additive manufacturing means any technology capable of obtaining a final component starting from a 3D CAD file and adding material layer by layer. At...
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...
