Machinability of Titanium Alloys

Dear Colleagues,

Titanium alloys are widely used for applications requiring an excellent mechanical resistance and high strength at elevated temperature. These alloys have high mechanical characteristics that allow better performance in commercial aircraft, and a significant gain compared other materials.

In manufacturing production, titanium alloys are classified as hard to cut materials. The main problems encountered when machining these materials are the low material removal rate and the short tool life because of the excessive wear exhibited during the chip formation process. The first findings of machining titanium alloy are manifested by low cutting speeds. This causes high cycle times and reduced tool life, and then generates an increase in manufacturing costs. In view of all this, productivity gets affected; increasing productivity is a big challenge and needs the good understanding of the mechanism of material removal

This Special Issue concentrates on recent machinability studies (theoretical and experimental) involving cutting forces, surface roughness, cutting temperature, tool-wear, coating, chip formation process, microstructure and any other machinability parameters aimed at improving the machinability of titanium alloys.

Recently, there has been a growing interest and tendency to employ more friendly processing techniques to play a key role in performing successful and efficient machining operation. Significant advances have been made in understanding the cutting tools, machine controls, different machining methods, and also in understanding the cooling/lubrication effect when machining at higher cutting conditions from practical and theoretical stand points. Research articles focusing on these developments that have particularly enhanced the machinability of titanium materials are encouraged as well.

Prof. Dr. Mohammed Nouari
Guest Editor

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• Titanium alloys
• Machinability parameters
• Hybrid machining
• Chip formation process
• Tool wear
• Cryogenic machining
• Coating and/or cooling/lubrication
• Advanced theorical modeling