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, […]
Advanced Thermal Processing for Enhanced Gear Tribology
Abstract Vast empirical knowledge accumulated over centuries, in conjunction with recent advances in the areas of material science, tribology, and […]
An Experimental and Analytical Comparison of the Noise Generated by Gears of Austempered Ductile Iron (ADI) and Steel Materials
Over the years, there have been many claims made concerning the relative noise performance of austempered ductile iron (ADI) versus […]
Review of Microstructure and Properties of Non-Ferrous Alloys for Worm Gear Application and Advantages of Centrifugally Cast Gears
Worm gears are used for large gear reductions. Gear ratio ranges of 5:1 to 300:1 are typical. Generally, worm gear […]
Case Study: How Advanced Gearbox Testing Drove the Need for the Lost Foam Casting Process
For decades, powertrain test systems incorporated custom test stand gearboxes constructed with fabricated gearbox housings. In some cases, fabricated housings […]
State of the Art in Microstructure and Metallurgy Modeling
Anticipating the microstructure evolution during the manufacturing process has long been a major concern for specific industries such as aerospace. […]
Developing a Lighter, Stronger, and Cleaner Air-Melt Steel for Critical Applications
Steel components, particularly those used in critical applications such as bearings and fuel injection systems, are increasingly expected to be […]
A Comparison of Wrought Steel Gears and Surface – Densified Powder Metallurgy Gears
Automotive transmission gears are responsible for transmitting torque from the engine to the wheels. In the process of transferring torque, […]
Forging: 101
Introduction PeripWhen buyers must select a process and supplier for the production of a critical metal component, they face an […]
Numerical Modelling Of Hot Forming and Heat-Treatment of Annular Gears
During the last two decades, there has been very intense research activity in the field of finite element simulation in […]
A New Standard Under Development: Specifying Powder Metallurgy Gears
In the early nineties, I was working at a transmission manufacturing facility in Indiana that made lawn and garden transmissions. […]
Failure Analysis of H13 Gear Blank Forging Dies
Forging is defined as the process of working hot metal into a desired shape by impact or pressure1. The hot […]
Ductile Iron for Open Gearing – A Current Perspective
Gears made for applications in the mining and cement industries cover a wide range in terms of size and transmitted […]
Casting, Forming, and Forging
There are many methods for manufacturing gears, including: Metal removal processes (hobbing, shaping, milling, shaving, grinding, honing, and lapping) Various […]
Increasing Efficiency with Synchronized Systems
Every manufacturer is faced with the decision at some point: is it time to upgrade equipment and expand my capabilities? […]
New Opportunities with Open Die Forging
True, the unsteady recovery and realigning markets mean business is more difficult for the entire gear industry. Order volumes are […]
Optimizing Ring Gear Forging
The objective of this research was to develop an optimum preform/blocker forge geometry for a ring gear blank, which would […]
Comparing Castings and Forgings
Material selection is one of the most crucial decisions made in the design, manufacture, and application of large structural components. […]
