Design Aspects Of A New Material Wear Tester
Author(s)
J. L. Loth, G. J. Morris & R. Ware
Abstract
Most material frictionhear testers are variations of the BOCLE@ tester. It uses a
rotating or oscillating spindle, loaded down with a weight. The spindle has one
or more 0.5 inch diameter balls at its end rubbing over a flat test sample. Wear
depends on the inaterlal properties of contacting surfaces: ball(s) and flat test
sample. The flat test sample is fixed inside a cup filled with lubricant. The ratio
of drag force to contact force provides the friction coefficient. Wear is reported
for either material, as weight loss rate, or rate of groove width increase. Wear
depends on contact surfaces physical properties, contact pressure, velocity,
lubricant and contact temperature. Problems associated with the BOCLE@ tester
are vibrations caused by the rotating or oscillating weight on the spindle,
d~fficulty in changing the spindle
Keywords
Related Book
Other papers in this volume
Warning (2)
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