gear surface

Scratching the Surface: How Surface Engineering Fills in the Gaps that AM Leaves Behind

Posted by on Wednesday, May 12th, 2021 in

Prior to 3D printing’s arrival on the manufacturing scene, the US military supply chain was often met with lengthy and arduous timelines for critical asset production. This not only stalled the manufacture and repair of essential equipment within t...

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Metal Finishing for 3D Printed Parts Webinar – Part 8 – LATTICE BRACELET

Posted by on Tuesday, July 7th, 2020 in

Metal Finishing for 3D Printed Parts While many can be put into operation as sintered, there are a number of […]...

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Metal Finishing for 3D Printed Parts Webinar – Part 5 – FINGER SPLINTS

Posted by on Monday, July 6th, 2020 in

Metal Finishing for 3D Printed Parts While many can be put into operation as sintered, there are a number of […]...

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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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Report of the Condition of a General Electric Transportation Systems Gearbox

Posted by on Tuesday, April 14th, 2020 in

Wind power plant operation and maintenance (O&M) costs remain an appreciable contributor to the overall cost of wind energy, with a capacity-weighted average of $11/megawatt-hour (MWh) for projects installed since 2000 and $9/MWh for projects install...

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Materials Matter: How to Set Up a Vibratory Bowl for Gear Finishing

Posted by on Friday, July 19th, 2019 in

The vibratory bowl is toroidal-shaped, consisting of a center hub surrounded by an OD wall. Direct drive machines have a motor and driveshaft set inside the center hub....

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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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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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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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The Rapid ISF® Process

Posted by on Thursday, August 23rd, 2012 in

REM Surface Engineering's automotive process, Rapid ISF® (Isotropic Superfinishing), is able to produce a planar surface of Ra .1 µm or less in 4 minutes. The Rapid ISF Process increases fuel efficiency and power density and is compatible with a ju...

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Materials Matter: Comparing Surface Roughness Parameters

Posted by on Thursday, January 5th, 2017 in

Effective gear design must account for a range of potential failure modes. As discussed in previous Materials Matter columns, gear failure modes can be fatigue-based and progressive (such as micropitting) or sudden (such as scuffing)....

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Materials Matter: Lambda Ratio

Posted by on Friday, October 21st, 2016 in

The lambda ratio was originally developed to quantify the quality of lubricant operating regimes relative to bearing performance....

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