Journal
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
Volume 46, Issue 8, Pages 7087-7123Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13369-021-05420-1
Keywords
Titanium alloys; Turning; Milling; Ultrasonically assisted machining; Laser-assisted machining; Cooling systems
Categories
Funding
- Ministry of Higher Education, Malaysia [FP051-2019A]
- KFUPM [DF191046]
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Titanium and its alloys are lightweight materials with high toughness and corrosion resistance, widely used in various industrial applications. Due to the difficulty in machining, various techniques such as laser-assisted machining and different cooling systems are required to improve the machinability of titanium alloys.
Titanium (Ti) alloys are produced with the combination of titanium and alloying elements. Titanium and titanium alloys are lightweight materials with high toughness, corrosion resistance and tensile strength at high temperatures. Titanium and its alloys have been widely used in several industrial applications, such as marine, biomedicine, chemical, energy and other industries. However, machining of Ti alloys is extremely difficult due to the high cutting temperature, high tool wear, and built-up edge formation. Therefore, this research aimed to extensively review the impact of machining inputs on the machining force, chip formation, cutting temperature, tool wear, mechanical properties (residual stress, fatigue and hardness) and surface integrity (surface roughness, surface defect and microstructure) during turning and milling of Ti alloys. Moreover, laser-assisted machining, ultrasonically assisted machining and different cooling systems were reviewed and discussed. It was found that these techniques can significantly improve Ti alloys' machinability. They can improve the surface integrity, tool life and mechanical properties as well as reducing the machining force and cutting temperature. The findings of this research can help manufacturers and researchers who work on machining processes, specially machining of Ti alloys.
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