Abstract
SUMMARY A model of chip formation and an indentation model are constructed for the chisel edge region of a twist drill. From these models, predictions are made as to the shape of the wear zone about the chisel edge and equations derived for calculating the torque and thrust developed by the chisel edge given the geometry of the drill point, the cutting conditions and a shear stress factor for the work material. Using the chisel edge thrust equation, it is shown that as the drill feed tends to zero, the drill thrust approaches a finite value the magnitude of which is in reasonable agreement with that observed experimentally.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
