Abstract
Recently, the application of aluminum die cast parts in automobile manufacturing has increased because of the greater demand for automotive weight reduction. For even wider application, it is necessary to reduce manufacturing costs and improve product quality. A material possessing a thermal conductivity 50% higher than the conventional 5% chromium hot work tool steel, AISI-H13, was developed as a die material for high- and low-pressure die casting machines.
In this research, the product cooling rate for dies using this type of steel was faster than with the conventional steel, and it was hypothesized that cycle time may be shortened and product cost reduced. A ferrous material with high thermal conductivity, HDS-1, was developed for application to die casting dies. Thus, HDS-1 was used to produce a water jacket core of an engine block die for a high-pressure die casting machine and the cylinder head upper die of a low-pressure die casting machine. The result was a reduced die surface temperature, with the faster cooling rate verified through analysis of the microstructures of the die-cast parts. The results of test application of these dies using the high thermal conductivity material suggest that it is possible to improve tool service life and casting quality simultaneously.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Cadwick, G. A., and Yue, T. M. Metals and Materials, No. 1, p6 (1989).
Radjai, A., Misawa, K., and Nishio, T. Metallurgical and Materials Transactions A, Vol. 29A, p 1477.
Hayasaka, K. Die and Mould Technology, Vol. 18, No. 4, p 55 (2003).
Kawada, K. Electric Furnace Steel, Vol. 76 (2005): p 296 (2005).
Baran, L. O. Advanced Materials & Processes, No. 1, p 34 (2002).
Nishi, N. Die and Mould Technology, Vol. 17, No. 7, p. 52 (2002).
Itoi, T., Tohi, Y., Minami, N., and Takatsuka, H. Hitachi Metals Technical Report, Vol. 15, p 91 (1999)
Miettinen, J. Metallurgical and Materials Transactions B, 28B, p 281 (1997).
Inoue, K., Ohfuji, T., Ichioka, Y., and Araki, T. Electric Furnace Steel, Vol. 76, p 287 (2005).
Ozaki, K., Kawano, M., Yanagisawa, T., Shibata, K., Nagaoka, T., Hasegawa, M., and Koyama, M. Die and Mould Technology, Vol. 21, No. 8. p 162 (2006).
Ayabe, M, Shibata, K., Nagaoka, T., Nozute, H., Koyama, H., Ozaki, K., Yanagisawa, T., and Kawano, M. SAE technical paper 2007-01-1221, Society of Automotive Engineers, (2007).
Spear, R. E., and Gardner, G. R., Modern Castings, p43, p 209 (1963).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ayabe, M., Nagaoka, T., Shibata, K. et al. Effect of High Thermal Conductivity Die Steel in Aluminum Casting. Inter Metalcast 2, 47–55 (2008). https://doi.org/10.1007/BF03355427
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03355427