ISF Archives - REM Surface Engineering

Vibratory Bowl Media Attrition: Part 2

Posted by Danny Estrada on Monday, June 20th, 2022 in

What is the Attrition Rate of the Media You are Using? The key tidbit of information relative to predicting how […]...

Vibratory Bowl Gear Polishing Inefficiencies

Posted by Danny Estrada on Tuesday, May 31st, 2022 in

Media Volume Inefficiency The most common inefficiency in isotropic finishing is a low media level. Media is a wear item […]...

Isotropic Superfinishing for Gear Repair for Helicopters and Wind Turbines

Posted by Danny Estrada on Thursday, October 14th, 2021 in

Isotropic Superfinishing Isotropic superfinishing is a term that, in the broadest sense, describes any process that is achieves a “superfinish” […]...

Advancing rocket propulsion through Additive Manufacturing, novel surface finishing technologies and public-private partnerships

Posted by Christina Michaud on Tuesday, December 1st, 2020 in

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....

Metal Finishing for 3D Printed Parts Webinar – Part 7 – OPEN IMPELLER

Posted by Danny Estrada on Monday, July 6th, 2020 in

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Metal Finishing for 3D Parts Webinar – Part 2

Posted by Danny Estrada on Monday, July 6th, 2020 in

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Metal Finishing for 3D Printed Parts Webinar – Part 1

Posted by Danny Estrada on Monday, July 6th, 2020 in

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Gear designers and manufacturers will need to review and update their tooth flank roughness specifications based on the new ISO 21920 GPS family of standards.

Changes Ahead in the Roughness Standards

Posted by Mark Michaud 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!...

Report of the Condition of a General Electric Transportation Systems Gearbox

Posted by Mark Michaud 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...

Rotorcraft Gearbox Regulations: LOL (not what you think)

Posted by Mark Michaud on Monday, March 16th, 2020 in

The European Union’s CS-29 Amendment 7 places more stringent and rigorous testing requirements for certification of Category A type pressurized gearboxes under loss of lubrication conditions compared to the previous regulation....

Roughness Measurement Tips: The Scratch Pad

Posted by Mark Michaud on Thursday, January 16th, 2020 in

From the perspective of the shop floor environment, the previous Materials Matter column “Roughness Measurement Tips: 2 V 5” discussed the contact stylus 2-micron radius tip versus a 5-micron radius tip....

A Comparison of Surface Roughness Measurement Methods for Gear Tooth Working Surfaces

Posted by Mark Michaud on Friday, October 25th, 2019 in

Surface roughness is a critical parameter for gears operating under a variety of conditions. It directly influences friction and contact temperature, and therefore has an impact on various failure modes such as macropitting, micropitting and scuffing...