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 […]
