micropitting Archives - REM Surface Engineering

NASA SPINOFF – Some Engineering Is Only Skin Deep

Posted by Danny Estrada on Monday, January 31st, 2022 in

So he contacted REM Surface Engineering of Southington, Connecticut. Founded by CEO Justin Michaud’s grandfather as a decorative plating supply […]...

Post-Process Superfinishing of Additively Manufactured Components for Next-Gen Space Application

Posted by Danny Estrada on Thursday, November 4th, 2021 in

REM Surface Engineering and Additive Manufacturing The past decades have seen Additive Manufacturing (AM) develop from an idea to a […]...

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” […]...

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

Posted by Danny Estrada 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...

Case Study of ISO/TS 6336-22 Micropitting Calculation

Posted by Danny Estrada on Wednesday, May 5th, 2021 in

ISO/TS 6336-22 (Calculation of load capacity of spur and helical gears — Part 22: Calculation of micropitting load capacity) is the ISO technical specification containing a proposal for a calculation for the risk of micropitting in gear sets....

Mechanical Paste Polishing vs. CAVF Finishing of Gears

Posted by Danny Estrada on Monday, 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....

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....

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...

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....

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...