Abstract
Titanium alloys are widely used for applications requiring high strength at elevated temperature and high mechanical resistance. The main problems encountered when machining this kind of materials are the low material removal rate and premature tool wear. In the current study, the usual titanium alloy Ti-6Al-4V is machined under orthogonal cutting configuration without using lubrication (dry machining). Three rake angles of 0°, 15° and 30°, three cutting speeds of 15, 30 and 60 m/min, and three feeds of 0.1, 0.2, and 0.3 mm were selected. The chip load (V.f) is used to calculate the flow localisation parameter β. The later is a good indication on the chip shape. It has been found that the serrated chip shape starts at β of 4.70 which corresponds to chip load V.f of 0.0045 m²/min. In this case, a brittle failure is produced by the formation of Built-Up-Layers (adhesion wear) at the tool-chip interface.
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 callMore From: International Journal of Materials and Structural Integrity
Disclaimer: 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.
