WEAR MECHANISM OF TICN AND TIALN COATED DRILL IN DRILLING OF CARBON STEEL
DOI:
https://doi.org/10.11113/jt.v76.5638Keywords:
Drill, TiCN, TiAlN, SEM, wear, microstructureAbstract
TiCN and TiAlN coated twist drills were subjected to drilling tests to investigate the failure mechanisms during drilling operation. The drilling tests were performed on a carbon steel plate with a thickness of 25 mm and the depth of drill was set at 20 mm. The drill performance parameters were set at a spindle rotation of 1,600 rpm and feed rate of 20 mm/min. Each sample was then subjected to Scanning Electron Microscopy examination to investigate the wear mechanisms operated during drilling. Microstructural examination showed that the abrasion, adhesion and thermal wear mechanisms are operated during drilling process.
References
Avila, R. F., Mancosu, R. D., Machado, A. R., Vecchio, S. D., da Silva, R. B. and Vieira, J. M. 2013. Comparative Analysis of Wear on PVDTiN and (Ti1-xAlx)N Coatings In Machining Process. Wear. 302: 1192-1200.
Lin, K. L, Chao, W. H. and Wu, C. D. 1997. The performance and Degradation Behaviours of the Tialn/Interlayer Coatings on Drills. Surface & Coating Technology. 89: 279 -284.
Sedlacek, V. 1982. Metallic Surfaces, Films and Coatings. Czechoslovakia, Elsevier.
Aboukhashaba, A. A. 1988. Life of TiN and Ti(C,N) Coated and Uncoated HSS Drills. Surf. Eng. 4(4): 316-321.
Smith, I. J., Gillibrand, D., Brooks, J. S. and Münz, W.-D. 1997. Dry Cutting Performance of HSS Twist Drills Coated with Improved TiAlN. Surf. Coat. Technol. 90: 164-171.
Barry, J. and Byme, G. 2002. The Mechanisms of Chips Formation in Machining Hardened Steels. J. Manuf Sci Eng Trans AMSE. 124: 528-535.
Astakhov, V. P. 2006. Tribology of Metal Cutting. Elsevier, London.
Rui Li and Albert J. Shih. 2007. Tool Temperature in Titanium Drilling. Journal of Manufacturing Science and Engineering. 129: 740-749.
Talib, R. J., Saad, S., Toff, M.R.M. and Hashim, A. H. 2004. SEM Observations on Wear Mechanism of Tin-Coated HSS Twist Drills Drilling Mild Steel. Jurnal Teknologi. 41A: 17-28.
Brettel, H., Vienot, F. and Mollon, J. 1997. Computerized Simulation of Color Appearance of Dichromats. Journal of Optical Society of America. 14(10): 2647-2655.
Solem, J. E. 2012. Programming Computer Vision with Python. Sebastopol: O’Reilly Media.
Joseph Howse. 2013. OpenCV Computer Vision with Python. Birmingham: Packt Publishing Ltd.
Bradsky, G. and Kaehler, A. 2008. Learning OpenCV. California: O’Reilly Media.
Jeffries, B. J. 1880. Color-blindness: Its Dangers and Its Detection. Boston: Houghton, Osgood and Company.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
