An experimental study of the action of CCl4 in cutting and other processes involving plastic flow

Abstract Special metal cutting and materials tests are described for ascertaining the action of CCl4 on specimen surfaces. The experiments performed seem to support the idea that micro-cracks are formed when metals are plastically deformed in shear to high values of strain. CCl4 appears to prevent rewelding of these cracks when a compressive stress is present on the shear plane. The experimental results suggest a pre-treatment of surfaces to be burnished and a new classification of types of sliding contact.