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Articles
Advancing rocket propulsion through Additive Manufacturing, novel surface finishing technologies and public-private partnerships
Whilst Additive Manufacturing is undoubtedly having a huge impact on the design and manufacture of rocket propulsion systems, most notably combustion chambers and nozzles, the Achilles’ heel of all AM process is currently as-built surface finish.
Technical Papers
Gear Repair for Helicopters and Wind Turbines via Isotropic Superfinishing
The wind turbine, aerospace, and helicopter gear industries recognize the importance of surface finish and surface texture for maximizing component and system performance.
White Papers
Materials Matter: Wind Turbine Gear Repair
Wind turbine gearbox durability has improved significantly over the past ten years. The days of early gearbox failure due to epidemic micropitting are largely in the past.
White Papers
Materials Matter: Power Density and Isotropic Superfinishing
Power density, also described as load-carrying capacity, is simply the amount of load that can be safely transferred by a gear or other power transfer component without failure.
White Papers
Materials Matter: Roughness Measurement of Precision Gear Teeth
Over the past 25 years, industries such as power generation, aerospace, automotive, and others have continuously increased the operational demands of gearboxes.
White Papers
Materials Matter: Gear Surfaces and Operational Performance
In the search for increased performance and durability, gear and bearing design has sought to make use of improved steel grades combined with enhanced heat treatment techniques.
White Papers
Materials Matter: Isotropic Superfinishing
Increasingly stringent operational requirements from customers coupled with enhanced global technical standards have heightened the focus of gear designers on a wide array of parameters that historically would have been of secondary consideration; one such design parameter is surface finish.
White Papers
Materials Matter: Optimizing Performance with Surface Finish and Lubrication
Materials and manufacturing processes have evolved to generate lighter, stronger, and more robust components to meet the demand for more efficient, highly loaded mechanical systems.
White Papers
Materials Matter: The Gear Drawing Roughness Specification
In the January Materials Matter column, “Roughness Measurement of Precision Gear Teeth,” the importance of accurate and repeatable roughness measurement of precision gear teeth flanks was explained.
Technical Papers
Superfinishing and its Effect on Micropitting
Micropitting is a prominent failure mechanism for both highly stressed case carburized gears and bearings that operate consistently in low speed, low load environments where boundary conditions predominate.
Technical Papers
The Impact of Surface Condition and Lubricant on Gear Tooth Friction
Frictional losses in gear boxes are of significant interest to gear box designers as these losses transform into heat. The direct result is a reduction in the fuel efficiency of the vehicle involved.
Technical Papers
An Evaluation of the New Rapid ISF® Process for Rear-Axle Gears
The benefits gained by Superfinishing rear-axle gearsets using traditional chemically accelerated vibratory finishing is well documented.
Technical Papers
Superfinishing Rear Axle Gears – A Significant Step Toward Reducing Automotive Greenhouse Gas Emissions
New regulations make it imperative that the European and US automotive industries meet strict, lower greenhouse gas emission standards.
Technical Papers
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 a variety of gear steels.
