1. E. P. DeGarmo, J. T. Black and R. A. Kohser,Materials and Processes in Manufacturing, p. 249, Macmillian Publishing Company, New York (1984).
2. H. F. Taylor, M. Flemings and J. Wulff,Foundary Engineering, p. 50, John Wiley and Sons Inc., New York (1959).
3. H. Fukunaga and K. Goda,Trans. Japan. Soc. Mech. Eng. 50, 1054 (1984).
4. J. F. Mason, M. Warwick, P. J. Smith, J. A. Charles and T. W. Clyne,J. Mater. Sci. 24, 3934 (1989).
5. H. Westengen, D. L. Albright and A. Nygard,SAE Technical Paper 900534 (1990).