Surface Finish and Mechanical Properties of Commercial Aluminas

摘要

In this work the influence of two different grinding procedures, longitudinal and planetary, on the mechanical properties of two commercial aluminas has been investigated. In order to check if the tech- nological history, as a consequence of the grinding procedures, can be reduced and/or eliminated, the investigation has been extended also to sample batches in which the surface subjected to tensile stress was finished by lapping. The experimental results, discussed in terms of machining parameters, have been analysed from the point of view of roughness, microstructure and flexural strength.