REM Archives - REM Surface Engineering

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

Posted by Danny Estrada 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 […]...

Metal Finishing for 3D Parts Webinar – Part 2

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

What options are available? While many can be put into operation as sintered, there are a number of reasons – […]...

Metal Finishing for 3D Printed Parts Webinar – Part 1

Posted by Danny Estrada 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 […]...

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!...

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

Posted by Mark Michaud 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....

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

Posted by Mark Michaud 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....

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...

Vibratory Media Compositions vs. Attrition and Density

Posted by Bill Nebiolo on Tuesday, October 1st, 2019 in

The third in our multi-part series on vibratory processing of gears is focused on understanding how media of different compositions have varying attrition rates and densities, and why these are important in vibratory finishing of gears. ...

AN ANALYSIS OF A LOSS OF LUBRICATION TEST OF ISOTROPIC SUPERFINISHED GEARS WITHOUT BLACK OXIDE COATING

Materials Matter : Surface Finishing Rotorcraft Gearing

Posted by Danny Estrada 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....

Gear Expo Live! Ask the Expert with Mark Michaud

Posted by Mark Michaud 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 […]...

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

Posted by Danny Estrada 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....

ISF Surface Versus Machined Surface

Posted by Danny Estrada on Wednesday, March 26th, 2014 in

Why ISF® Surfaces are superior to machined surfaced: As the load of the mating surface is increased, the lubrication film becomes thinner, and the asperities of the machine surface contact each other resulting in plastic deformation, metal debris an...