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American Gear, Inc.

Consistency of quality and over thirty years of expertise and experience produce AMERICAN GEARS… fine and medium pitch small gears. […]

Arrow Gear Company

Arrow Gear Company is among the most technologically advanced gear companies in the world. Our modern facility of over 145,000 […]

Contact Ratio Optimization of Powder-Metal Gears

Powder metal (PM) alloys are becoming more of a solution for high-performance gears, not only because of part price but […]

Gear Design Relevant Cleanness Metrics

The “Metallurgical Specifications for Steel Gearing” information sheet (AGMA 923-B05) [1] details non-metallic inclusion limits to meet AGMA grade expectations […]

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, […]

High Temperature Vacuum Carburizing Drives Alloy Development

Vacuum carburizing (low pressure carburizing, or LPC) is a process used to impart hardness, wear resistance and increased fatigue life […]

Molecular Decomposition Process = Electrochemical Assisted Precision Form Grinding

Introduction Molecular decomposition process is an electrochemical grinding process that has been refined to enable: • The removal of increased […]

Forging: 101

Introduction PeripWhen buyers must select a process and supplier for the production of a critical metal component, they face an […]

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 […]

From Many, One

In June 2013, a $1B industrial equipment manufacturer was on a cost savings mission for an assembled worm gear that […]

Casting, Forming, and Forging

There are many methods for manufacturing gears, including: Metal removal processes (hobbing, shaping, milling, shaving, grinding, honing, and lapping) Various […]

Comparative Corrosion Characteristics of Ground and Superfinished Gear Steels

The described effort was undertaken to assess the impact of the isotropic superfinishing (ISF®) process on the corrosion resistance of […]

Comparing Castings and Forgings

Material selection is one of the most crucial decisions made in the design, manufacture, and application of large structural components. […]

Rolling Contact Fatigue of Surface Densified PM Gears

Surface densification provides the opportunity for PM technology to advance into the manufacture of highly stressed product groups, such as […]

Engineered Systems for Forging Operations

Forging is a diverse industry, and Seco has a number of different furnaces, atmosphere generating systems, and quenching systems to […]

High Performance Gears for Heavy Duty Transmissons

Planetary gears in heavy truck gearboxes are normally manufactured by forging a blank, turning, hobbing, shaving, and heat-treatment followed by […]

Engineered Heat Treatment for Stronger Aerospace Gears

It is well established that carburization of low alloy steels promotes compressive residual surface stress upon quenching, and that compressive […]

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