ABOUT THIS BOOK:

The wear and friction response of unfilled and composite polyoxymethylene (POM) sliding against hardened steel have been studied. A twin-transducer technique, wherein the thermal effects usually associated with wear measurements are compensated for, was used to determine the wear. The relationship between the formation of a transfer film and the sfiding speed and counterface surface topography were been examined for each polymeric material. It was found that unfilled POM did not transfer to a steel countersurface, while the composites of the POM tested did transfer. The friction and wear behaviour of unfilled POM depend strongly on the counter-face topography. For the composites of POM, the surface topography of the counterface does not markedly affect the coefficient of friction. The wear of the composites of POM, however, does depend on the surface topography of the counterface. Friction and wear results of POM + 15% polytetra~uoroethylene (PTFE) showed that this material would probabIy perform excehently under dry running conditions.