Edge Chipping of Rock: An Experimental Study

Article Preview

Abstract:

This paper investigates experimentally the edge chipping of a rock to assess the cutting performance of a conical and a pyramidal tip. It was found that the conical tip generates many radiated cracks and results in a larger amount of fine rock grains due to crashing. The size of chips produced by the pyramidal tip is bigger. It was concluded that the critical chipping energy has approximately a linear relation with h9/4 of which h is the depth of cut of the tip.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

456-461

Citation:

Online since:

June 2010

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] H. Chai and B. R. Lawn: Acta Mater. vol. 55 (2007), p.2555.

Google Scholar

[2] N. J. McCormick and E. A. Almond: J Hard Mater, vol. 1(1) (1990), p.25.

Google Scholar

[3] N.J. McCormick: Met. Mater, vol. 8 (1992), p.154.

Google Scholar

[4] E.A. Almond and N.J. McCormick: Nature vol. 321(1986), p.53.

Google Scholar

[5] M.D. Thouless, A.G. Evans, M.F. Ashby and J.W. Hutchinson: Acta Metall, vol. 35 (1987), p.1333.

Google Scholar

[6] T.J. Lardner, J.E. Ritter, M.L. Shiao and M.R. Lin: Int. J. Fracture. vol. 44 (1990), p.133.

Google Scholar

[7] W.C. Chui, M.D. Thouless and W.J. Endres: Int. J. Fracture, vol. 90 (1998), p.287.

Google Scholar

[8] J.B. Quinn, L. Su, L. Flanders and I.K. Lloyd: Mach Sci Technol, vol. 4 (2000), p.291.

Google Scholar

[9] R. Morrell: Key Eng Mater, vol. 290 (2005), p.14.

Google Scholar

[10] H. Hughes: Int J Rock Mech Min Sci vol. 9 (1972) p.205.

Google Scholar

[11] M. Mellor: Int J Rock Mech Min Sci vol. 9 (1972) p.661.

Google Scholar

[12] W.W. Roepke and B.D. Hanson: Min Eng vol. 36 (1984), p.636.

Google Scholar

[13] F.F. Roxborough and A. Rispin: Tunnels Tunnelling vol. 5 (1973) p.45.

Google Scholar

[14] F.F. Roxborough and A. Rispin: Min Eng vol. 133 (1973) p.1.

Google Scholar

[15] F.F. Roxborough: Proceedings of the rapid excavation tunn congress, Las Vegas (1985) p.225.

Google Scholar

[16] R.J. Fowell: Comprehensive rock engineering, vol. 4 (1993) p.155.

Google Scholar

[17] L. Zhang and J. Arsecularatne: Cutting tip and tool, PCT/AU2008/000969 (2008).

Google Scholar

[18] B.R. Lawn: Fracture of brittle solids-second edition (Cambridge University Press, UK 1993).

Google Scholar

[19] B.R. Lawn, A.G. Evans and D.B. Marshall: J. Am. Cera. Soc. vol. 63 (1980) p.574.

Google Scholar

[20] B.R. Lawn and V.R. Howes: J. Mat. Sci. vol. 16 (1981) p.2745.

Google Scholar