Abstract
The serrated chip produced in high-speed machining of martensitic precipitation-hardening stainless steel is inevitably tore up into isolated segments due to adiabatic shear fracture with the further increase of cutting speed. The induced mechanism of adiabatic shear fracture and the corresponding damage process in high-speed machining are investigated through quick-stop tests and chip morphology examinations. The isolated segments generated due to adiabatic shear fracture which is found in the rate-related process of adiabatic shear evolution is a cyclic process of energy convergence and release with ductile-brittle damage transition. The fracture energy of adiabatic shear band approaches a stable saturation limit with the increases of cutting speed and feed. On the basis of saturation limit model, the critical fracture energy is predicted by cutting conditions and compared with the experimental results.
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.
