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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2011, Vol. 12 Issue (1): 56-62    DOI: 10.1631/jzus.A1000408
Mechanics and Mechanical Engineering     
Cutting force and its frequency spectrum characteristics in high speed milling of titanium alloy with a polycrystalline diamond tool
Peng Liu, Jiu-hua Xu, Yu-can Fu
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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Abstract  In this paper, a series of experiments were performed by high speed milling of Ti-6.5Al-2Zr-1Mo-1V (TA15) by use of polycrystalline diamond (PCD) tools. The characteristics of high speed machining (HSM) dynamic milling forces were investigated. The effects of the parameters of the process, i.e., cutting speed, feed per tooth, and depth of axial cut, on cutting forces were studied. The cutting force signals under different cutting speed conditions and different cutting tool wear stages were analyzed by frequency spectrum analysis. The trend and frequency domain aspects of the dynamic forces were evaluated and discussed. The results indicate that a characteristic frequency in cutting force power spectrum does in fact exist. The amplitudes increase with the increase of cutting speed and tool wear level, which could be applied to the monitoring of the cutting process.

Key words： Cutting force      High speed milling      Polycrystalline diamond (PCD) tool      Frequency spectrum analysis      Titanium alloy     
Received: 17 September 2010      Published: 06 January 2011
CLC:  TG506  
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Peng Liu, Jiu-hua Xu, Yu-can Fu. Cutting force and its frequency spectrum characteristics in high speed milling of titanium alloy with a polycrystalline diamond tool. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(1): 56-62.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1000408     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2011/V12/I1/56

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