Research of PCBN Tool Wear Mechanism in Turning Ni-Based Superalloy

Abstract:

This paper mainly focus on the researches of tool wear mechanisms in turning Ni-based superalloy GH706 with PCBN insert. First, the process of flank face wear and rake face wear are studied by observing the pictures of tool wear. There are notch wear and flank wear on the flank face, and there are built-up-edge and micro-chipping on the rake face. Secondly, tool wear mechanisms are researched by combining the tribology and chemistry. A phenomenon called furrow effect cause flank face wear, and there are some chemical reactions on the rake face in cutting process. Lastly, in order to make sure a tool wear value which may be as a standard of PCBN tool in turning GH706, the relationships of cutting forces and flank face wear V_B are showed by drawing the curves of cutting force values along V_B, which indicate cutting forces turn up at the point where V_B =180μm.

• Periodical: Advanced Materials Research (Volume 820)
• Pages: 185-189
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.820.185
• Online since: September 2013
• Authors: Wei Ji, Xian Li Liu, Han Yang Li, Hai Yan You, Meng Chao Fan
• Keywords: Cutting Force, Ni Based Superalloy, PCBN Tool, Wear

References

[1] G. Kreysa and M. Schütze. DECHEMA corrosion handbook (DECHEMA revised and extended 2nd Edition, Frankfurt, 2008).

[2] D. Smithberg: Inconel 718 machining manual (Manufacturing Research and Development, Boeing Commercial Airplane Company, 1987).

[3] S. Miller. Advanced materials means advanced engines: Interdisciplinary Science Reviews Vol. 21 (1996), pp.117-129.

DOI: 10.1179/isr.1996.21.2.117

[4] E. O. Ezugwua, J. Bonneya and D. A. Fadareb. Machining of nickel-base, Inconel 718, alloy with ceramic tools under finishing conditions with various coolant supply pressures: Journal of Materials Processing Technology Vol. 162-163 (2005).

DOI: 10.1016/j.jmatprotec.2005.02.144

[5] E. O. Ezugwu. Key improvements in the machining of difficult-to-cut aerospace superalloys: International Journal of Machine Tools and Manufacture Vol. 45 (2005), pp.1353-1367.

DOI: 10.1016/j.ijmachtools.2005.02.003

[6] G. Poulachon, B. P. Bandyopadhyay, I. S. Jawahir, et al. Wear behavior of CBN tools while turning various hardened steels: Wear Vol. 256 (2004), pp.302-310.

DOI: 10.1016/s0043-1648(03)00414-9

[7] X. L. Liu: Cutting Tool and Application of Polycrystalline Cubic Boron Nitride (Heilongjiang Science & Technology Press, Harbin, 1999).

[8] J. M. Zhou, H. Walter, M. Andersson, et al. Tool-life and wear mechanisms of CBN tools in machining of Inconel 718: Int. J. Mach. Tools Manuf Vol. 43 (2003), p.301–305.

[9] J. P. Costes, Y. Guillet, G. Poulachon, et al. Tool-life and wear mechanisms of CBN tools in machining of Inconel 718: International Journal of Machine Tools and Manufacture Vol. 47 (2007), pp.1081-1087.

DOI: 10.1016/j.ijmachtools.2006.09.031

[10] W. Ji, X. L. Liu, Y. F. Li, et al. The Mechanisms of PCBN Tools in Turning GH4169: Advanced Materials Research Vol. 500 (2012), pp.73-81.

DOI: 10.4028/www.scientific.net/amr.500.73

[11] T. K. Song, M. Li and H. T. Zhang. Research on the cutting property of polycrystalline carbide boron nitride ( PCBN) tools in turning nickel: Diamond & Abrasives Engineering Vol. 31 (2011), pp.70-73.

[12] WenShizhu and Huang Ping. (2008) principles of tribology, Tsinghua university press, pp.80-90.

[13] Zhang Hui. (2011) Friction and wear behaviors of hard brittle material sat elevated temperatures, CNKI Shandong University, pp.33-47.