Bending Fatigue
Scratching the Surface: How Surface Engineering Fills in the Gaps that AM Leaves Behind
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...
View MoreMechanical Paste Polishing vs. CAVF Finishing of Gears
A recent Materials Matter article compared generic deburring versus CAVF (chemically accelerated vibratory finishing.) Both techniques are conducted in a vibratory unit....
View MoreMaterials Matter : Roughness Measurement Tips: Calibration, the Razor Blade Test
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....
View MoreSurface Treatment of Powder-Bed Fusion Additive Manufactured Metals for Improved Fatigue Life
High-cycle fatigue (HCF) tests were conducted on samples fabricated by two powder-bed additive manufacturing techniques....
View MoreAH-64 Loss of Lubrication Study: Test of Isotropic Superfinished AH-64 (Apache) Engine Nose Gearbox Without Black Oxide Coating
Rotorcraft gearboxes are designed to 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....
View MoreFuture Advanced Rotorcraft Drive System (FARDS) Full Scale Gearbox Demonstration
The Future Advanced Rotorcraft Drive System (FARDS) program focused on improving the performance and affordability of current aircraft drive systems....
View MoreGear Corrosion During the Manufacturing Process
No matter how well gears are designed and manufactured, gear corrosion can occur that may easily result in catastrophic failure. Since corrosion is sporadic and a rare event and often difficult to observe in the root fillet region or in finely pitche...
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