Materials Matter Archives - REM Surface Engineering

Expectations for a Chemically-Accelerated Super-finishing Process – Part 2/3

Posted by Justin Stephens on Montag, September 18th, 2023 in

In the previous article, we discussed the fact that chemically accelerated/assisted superfinishing, also known as isotropic superfinishing, was introduced into the gear industry more than twenty years ago. Since that time, it has become widely accept...

What to Expect From Chemically Accelerated Superfinishing Process

Posted by Danny Estrada on Mittwoch, August 30th, 2023 in

Isotropic superfinishing is a customizable manufacturing operation whereby tens or hundreds of gears can be simultaneously processed in the same […]...

Surfaces: More than just roughness

Posted by Danny Estrada on Montag, Juli 24th, 2023 in

As the manufacturing community changes and evolves, there is always a need to reevaluate how one thinks about things. New […]...

Tackling EV Noise Reduction

Posted by Danny Estrada on Dienstag, Dezember 13th, 2022 in

Ultimately, the next largest contributor will become the target as the transmission error is further minimized. This is typically vibro-acoustic […]...

Vibratory Bowl Media Attrition: Part 2

Posted by Danny Estrada on Montag, Juni 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 Dienstag, Mai 31st, 2022 in

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

Mechanical Paste Polishing vs. CAVF Finishing of Gears

Posted by Danny Estrada on Montag, August 3rd, 2020 in

A recent Materials Matter article compared generic deburring versus CAVF (chemically accelerated vibratory finishing.) Both techniques are conducted in a vibratory unit....

The Challenges of Generic Deburring vs. CAVF Deburring

Posted by Danny Estrada on Sonntag, Juli 19th, 2020 in

Relative to gear hobbing, shaving, and/or post heat-treat grinding to generate accurate tooth morphology there may come a time wherein vibratory deburring is a requirement to remove adherent burrs. ...

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 Freitag, Mai 15th, 2020 in

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

Materials Matter (DE)

Posted by Jac Sinex on Dienstag, Mai 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....

Rotorcraft Gearbox Regulations: LOL (not what you think)

Posted by Mark Michaud on Montag, März 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....

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

Posted by Mark Michaud on Dienstag, Februar 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....