Machinability Investigation when Drilling Titanium Alloys

Rahim, Erween Abdul and Sharif, Safian and Ahmad, Zainal Abidin and Mohruni, Amrifan Saladin and Syed, Mat Isa (2005) Machinability Investigation when Drilling Titanium Alloys. In: International Conference on Leading Edge Manufacturing in 21st Century (LEM2005), 19-22 October 2005, Nagoya, Japan.

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Investigation on the drilling of two alpha beta titanium alloy series, Ti-6Al-4V and Ti-5Al-4V-0.6Mo-0.4Fe was conducted using uncoated WC/Co carbide drill. Tool life, tool failure mode and surface integrity were examined when drilling both alloys at various cutting speeds. Results showed that Ti-6Al-4V exhibited a more superior machinability property in the drilling tests when compared to the Ti-5Al-4V-Mo/Fe alloy system. The tool wear progression when drilling Ti-6Al-4V was significantly lower than that of Ti-5Al-4VMo/Fe. Non uniform wear and chipping on the drill were the main tool failure modes when drilling both alloys. Examination on the microstructure of the sub-surface of the drilled surface, indicated that both materials suffered significant plastic deformation at all cutting speeds.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Titanium alloys, Drilling, Tool wear, Carbide drills
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ1-1570 Mechanical engineering and machinery
T Technology > TJ Mechanical engineering and machinery > TJ1125-1345 Machine shops and machine shop practice > TJ1180 Machining, Ceramic materials--Machining-Strength of materials-Machine tools-Design and construction > TJ1180.A34 Machining
Divisions: 03-Faculty of Engineering > 21101-Mechanical Engineering (S2)
Depositing User: Assoc.Prof Amrifan Saladin Mohruni
Date Deposited: 06 Jul 2019 09:15
Last Modified: 04 Dec 2021 06:02

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