FRET-3 - test rig for measurement of fretting wear
Test rig FRET3 is used for fretting wear investigation of materials in concentrated contact. In standard arrangement there is a cylindrical moving specimen pressed against a stationary specimen of flat tested surface and driven by electromagnetic vibrator. The relative sliding motion between specimens is a high frequency, low amplitude linear oscillation in the direction of the cylinder movable specimen axis.
Schematic view of test head (click sketch to enlarge):
Photo of test head:
Measured or calculated quantities:
Examples of the research: