REM’s ISF® Process

Changes Ahead in the Roughness Standards

Posted by on Friday, May 15th, 2020 in

I have written numerous articles on tooth flank surface roughness measurement. This is such a page-turner of a subject!...

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Materials Matter : Roughness Measurement: Optical vs. Contact Stylus Profilometry

Posted by on Sunday, April 19th, 2020 in

Optical profilometry will become an important tool for predicting gear performance with more research and development of an objective lens to fit into tooth spaces....

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Materials Matter : Roughness Measurement Tips: Calibration, the Razor Blade Test

Posted by on Tuesday, February 25th, 2020 in

If a problem is found with a contact stylus profilometer during routine check with a Rubert-Song specimen, do a little troubleshooting before sending it off for calibration and recertification....

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Physical Characteristics of the Vibratory Bowl and How They Affect Processing Efficiency

Posted by on Friday, July 19th, 2019 in

Vibratory bowls are outfitted with hot-poured polyurethane liners and their durometer hardness is an oft-cited characteristic. But what is durometer hardness and how is it useful?...

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Measuring Tooth Flank Roughness

Posted by on Wednesday, January 23rd, 2019 in

Gear performance has continuously increased over the past two decades. Improvements in metals, heat treatments, geometry, and lubrication are just a few of the sources of these improvements....

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Surface Treatment of Powder-Bed Fusion Additive Manufactured Metals for Improved Fatigue Life

Posted by on Friday, January 11th, 2019 in

High-cycle fatigue (HCF) tests were conducted on samples fabricated by two powder-bed additive manufacturing techniques....

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Materials Matter : Surface Finishing Rotorcraft Gearing

Posted by on Wednesday, October 3rd, 2018 in

Rotorcraft gearboxes are designed with the utmost precision to withstand the tremendous demand and loads required to convert thousands of horsepower and RPM into hundreds of RPM and lift torque....

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Materials Matter : The State of the Art of Wind Turbine Gearboxes

Posted by on Wednesday, September 5th, 2018 in

Much has been written here about the global growth in the wind turbine industry. Today, more than 341,320 wind turbines are operating worldwide. In particular, the number of offshore installations has exploded in the past seven years....

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Gear Expo Live! Ask the Expert with Mark Michaud

Posted by on Friday, February 23rd, 2018 in

Gear Technology speaks with Mark Michaud, REM Technical Fellow of REM Surface Engineering, is the inventor and pioneer of REM […]...

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Materials Matter: Nitriding’s “White Layer” and Isotropic Superfinishing

Posted by on Thursday, August 24th, 2017 in

Developed in the early 20th century, nitriding has evolved into a standard process across many industrial applications. Often considered the simplest technique for case hardening, the process is commonplace in aircraft manufacturing, bearings, automo...

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Repairing Wind Turbine Gears and Assemblies with Isotropic Superfinishing

Posted by on Tuesday, June 13th, 2017 in

As the wind turbine industry matures, the importance of operations and management (O&M) costs grows. In the early years of large kilowatt and small megawatt class wind turbines, pre-mature gearbox failure due to gear fatigue was very common and was a...

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Future Advanced Rotorcraft Drive System (FARDS) Full Scale Gearbox Demonstration

Posted by on Tuesday, June 6th, 2017 in

The Future Advanced Rotorcraft Drive System (FARDS) program focused on improving the performance and affordability of current aircraft drive systems....

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