Cutting elements for use in a rotary drill bit are configured to facilitate positioning of the cutting elements at a positive rake angle with respect to the formation to enhance compressive stresses in the cutting element and to reduce cutting loads on the cutting elements. The cutting element generally...http://www.google.fr/patents/US6527065?utm_source=gb-gplus-shareBrevet US6527065 - Superabrasive cutting elements for rotary drag bits configured for scooping a formation
Superabrasive cutting elements for rotary drag bits configured for scooping ...
