Development of morphology in laser dressed grinding wheels

• Autorzy: Jackson M. J. , Robinson G. M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper describes the development of faceted morphology in laser dressed grinding wheels. Design/methodology/approach: The approach used in the paper is based on locally melting a vitrified grinding wheel and measuring features such as grain size, cooling rate and melt depth as a function of laser fluence and relating these measures to the morphology shown in the microstructures presented in the paper. Findings: The findings of this course of research lead the authors to believe that a specific morphology is dependent upon cooling rate and laser fluence. Research limitations/implications: The findings show that further research is required to fully understand how certain morphologies form as a function of cooling rate and laser fluence. It should be noted that morphologies observed in laser processed grinding wheels include cellular and fully dendritic morphologies in addition to faceted vertices. Practical implications: The results imply that laser dressed grinding wheels can be used for machining different materials at different grinding speeds. The paper also shows that much development is needed to identify laser processing conditions that are appropriate for different workpiece materials. Originality/value: The paper shows that different morphologies can be used to machine workpiece materials under different conditions. The originality in the paper is focused on the formation on minute cutting points using increasing laser fluences.

Słowa kluczowe

EN

laser machining; dressing; laser; grinding wheel

PL

obróbka laserowa; obciąganie ściernic; laser; ściernica

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 22, nr 1
• Strony: 81--84
• Opis fizyczny: Bibliogr. 15 poz., fot.

Twórcy

autor

Jackson M. J.

autor

Robinson G. M.

• Center for Advanced Manufacturing, Purdue University, West Lafayette, Indiana 47907, USA,

Bibliografia

• [1] M.J. Jackson, W. O'Neill, Laser micro drilling of tool steel using Nd:YAG lasers, Journal of Materials Processing Technology 142 (2003) 517-525.
• [2] M.J. Jackson, G.M. Robinson, M. D. H. Gill, and W. O'Neill, The effect of nozzle design on laser micro machining of M2 tool steels, Journal of Materials Processing Technology 160 (2005) 198-212.
• [3] M. Bonek, L. A. Dobrzanski, E. Hajduczek, A. Klimpel, Laser modification of surface layer properties of hot-work tool steel, Journal of Achievements in Materials and Manufacturing Engineering 14 (2006) 152-156.
• [4] L. A. Dobrzanski and A. Drygała, Processing of silicon surfaces by Nd:YAG laser, Journal of Achievements in Materials and Manufacturing Engineering, 17 (2006) 321-324.
• [5] L.A. Dobrzanski A. Drygala, Surface modification of silicon solar cells, Proceedings of the 4th Polish-Ukranian Scientific Conference, Ukraine (2006) 45-48 (in Polish).
• [6] Т. С. Buttery et al., Some effects of dressing on grinding performance, Wear 55 (1979) 195-219.
• [7] N. R. Babu et al., Investigations of laser dressing of grinding wheels: part 1, ASME Journal of Engineering for Industry 111 (1989) 244-252.
• [8] N. R. Babu et al., Investigations of laser dressing of grinding wheels: part 2, ASME Journal of Engineering for Industry, 111 (1989) 253-261.
• [9] С Zhang, Y. Shin, A novel laser assisted truing and dressing technique for cBN grinding wheels, International Journal of Machine Tools and Manufacture 42 (2002) 825-835.
• [10] M.J. Jackson, et al., Laser dressing of aluminium oxide grinding wheels, British Ceramic Transactions 102 (2003) 237-245.
• [11] H.S. Carslaw, J.C. Jaeger, Conduction of heat in solids, Oxford University Press, 1967.
• [12] M.J. Jackson et al., Microgrinding hypereutectoid steels using laser modified grinding wheels, International Journal of Machining and Machinability of Materials 1 (2006) 12-26.
• [13] W. Kurz and D.J. Fisher, Fundamentals of solidification, Trans Tech Publications, 1998.
• [14] O. Esquivel, J. Mazumdar, M. Bass, S.M. Copeley, Cating and solification of metals in Rapid Solidification Processing, Processing and Technologies II, Claitors, Baton Rouge (1980) 150-173.
• [15] S. Kou, R. Mehrabian, Modelling of microstructures in solidified castings in Modelling of Casting and Welding Processes III, The Metals and Minerals Society TMS Warrendale PA (1986).