Performance of process damping in machining titanium alloys at low cutting speed with different helix tools

• Main Authors: Muhammad Adib, Shaharun, Mohamed Reza Zalani, Mohamed Suffian, A. R., Yusoff, Khairul Azha, Abd Jalal
• Format: Conference or Workshop Item
• Language: English
• Published: IOP Publishing 2012
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://umpir.ump.edu.my/id/eprint/25121/1/Performance%20of%20process%20damping%20in%20machining%20titanium%20alloys%20at%20low%20cutting%20speed.pdf; http://umpir.ump.edu.my/id/eprint/25121/; https://doi.org/10.1088/1757-899X/36/1/012017

Titanium is a strong, lustrous, corrosion-resistant and transition metal with a silver color to produce strong lightweight alloys for industrial process, automotive, medical instruments and other applications. However, it is very difficult to machine the titanium due to its poor machinability. When machining titanium alloys with the conventional tools, the wear rate of the tool is rapidly accelerate and it is generally difficult to achieve at high cutting speed. In order to get better understanding of machining titanium alloy, the interaction between machining structural system and the cutting process which result in machining instability will be studied. Process damping is a useful phenomenon that can be exploited to improve the limited productivity of low speed machining. In this study, experiments are performed to evaluate the performance of process damping of milling under different tool helix geometries. The results showed that the helix of 42° angle is significantly increase process damping performance in machining titanium alloy.