Abstract: Application of cooling slope in casting is a relatively simple process with low equipment and processing costs, which is able to produce semi-solid slurries with different parameters such as pouring temperature, length and angle of slope plate, and plate type. In this study, the effect of angle and length of copper made slope plate on the microstructure of A360-Aluminum alloy is investigated. Microstructure study of metallographic samples in different conditions revealed that for 400mm slope length and 60° slope angle the optimum sphierized and homogenized microstructure is achieved. Also, under these conditions, the most hardness (77HB) was obtained, which might be because of suitable solidification conditions namely time and rate of shear stress. After finding the suitable conditions of slope length and angle, the effect of the circulation cooling system was examined; and the method with cooling system was found to result in more homogenized microstructure compared to ordinary method.
How to cite this paper
Kaykha, M. (2017). Effect of angle, length and circulation cooling system on microstructure A360 Aluminum alloy in semi-solid metal forming by cooling slope method.Engineering Solid Mechanics, 5(1), 9-14.
Bae, J. W., Kim, T. W., & Kang, C. G. (2007). Experimental investigation for rheology forming process of Al–7% Si aluminum alloy with electromagnetic system. Journal of Materials Processing Technology, 191(1), 165-169. Birol, Y. (2008). Cooling slope casting and thixoforming of hypereutectic A390 alloy. Journal of Materials Processing Technology, 207(1), 200-203. Birol, Y. (2007). A357 thixoforming feedstock produced by cooling slope casting. Journal of Materials Processing Technology, 186(1), 94-101. Birol, Y. (2009). Forming of AlSi8Cu3Fe alloy in the semi-solid state. Journal of Alloys and Compounds, 470(1), 183-187. Brabazon, D. J. B. D., Browne, D. J., & Carr, A. J. (2002). Mechanical stir casting of aluminium alloys from the mushy state: process, microstructure and mechanical properties. Materials Science and Engineering: A, 326(2), 370-381. Hoffmann, H., & Toussaint, A. (1999, September). Strategies and future developments in the manufacturing process of light-weight car bodies. In Proceedings of the 6th International Conference on Technology of Plasticity, Nuremberg, Germany (pp. 1129-1140). Fan, Z. (1981). Semi-solid Metal Processing. Proceedings of Ninth North American Manufacturing Research Conference, 140-144. Fan, Z. (2002a). Semi-solid metal Forming. International Materials Reviews, 47(2), 1-37. Fan, Z. (2002b). Semisolid metal processing. International Martial Reviews. 147(2), 6-8. Fan, Z., Ji, S., & Liu, G. J. (2005). Development of the rheo-diecasting process for Mg-alloys. In Materials Science Forum (Vol. 488, pp. 405-412). Trans Tech Publications. Findon, M., & Apelian, D. (2004). Continuous rheoconversion process for semi-solid slurry production. Transactions of the American Foundry Society, Vol. 112, 305-323. Giordano, P., & Chiarmetta, G. (2004, September). New rheocasting: A valid alternative to the traditional technologies for the production of automotive suspension parts [C]. In Proceedings of the 8th International Conference on Semi-Solid processing of Alloys and Composites. Limassol: The Worcester Polytechnic Institute and the Metals Processing Institute (pp. 101-109). Haga, T., & Suzuki, S. (2001). Casting of aluminum alloy ingots for thixoforming using a cooling slope. Journal of Materials Processing Technology, 118(1), 169-172. Haga, T., & Kapranos, P. (2002). Billetless simple thixoforming process. Journal of Materials Processing Technology, 130, 581-586. Haghayeghi, R., Zoqui, E. J., Halvaee, A., & Emamy, M. (2005). An investigation on semi-solid Al–7Si–0.3 Mg alloy produced by mechanical stirring. Journal of materials processing technology, 169(3), 382-387. Sumitomo, T., StJohn, D. H., & Steinberg, T. (2000). The shear behaviour of partially solidified Al–Si–Cu alloys. Materials Science and Engineering: A, 289(1), 18-29. Lee, B. S., Joo, D. H., & Kim, M. H. (2005). Extrusion behavior of Al-Cu alloys in the semisolid state. Materials Science and Engineering: A, 402(1), 170-176. Neugebauer, R., & Bräunlich, H. (1999, September). Lightweight construction by innovative forming technologies. In Proceedings of the Sixth International Conference on Technology of Plasticity, Nuremberg (Vol. 19, No. 24, pp. 1119-1128). Pibworth, K., Atkinson, H. V., Kirkwood, D. H., & McLelland, A. R. A. (1996, June). Thixoforming of a normally wrought aluminium alloy. In Proc. 4th Int. Conf. on" Semi-Solid Processing of Alloys and Composites" Sheffield (pp. 19-21). Rice C. & Mendes P. F. (2001). Semi-solid Slurry Base Die Casting. Journal of advanced materials and processes, 159, 1-7. Salarfar, S., Akhlaghi, F., & Nili-Ahmadabadi, M. (2004). Influence of pouring conditions in the inclined plate process and reheating on the microstructure of the semisolid A356 aluminum alloy. In 8th Int. Conf. on Semisolid Proc. Of Alloys and Composites, Cyprus. Vogel, Y., & Zhang K. (2003). The formation of rosette phase structural evolution during the reheating and semi-solid casting of AlSi7Mg Alloy. Journal of Materials Processing Technology, 137, 195-200.