The Parameters Investigation and Hardness Optimization of A380 Aluminum Alloy produced by Mechanical Vibrator
الموضوعات : فصلنامه شبیه سازی و تحلیل تکنولوژی های نوین در مهندسی مکانیک
سعید احترامیان حقیقی
1
(Islamic Azad Univesrity,
Khomeinishahr Branch)
امین کلاه دوز
2
(استادیار، دانشکده مهندسی مکانیک، دانشگاه آزاد اسلامی، واحد خمینی شهر)
مجید کریمیان
3
(Islamic Azad University,
khomeinishahr Branch)
الکلمات المفتاحية: Optimization, Hardness, Semi Solid Casting, A380 Aluminum Alloy, Mechanical Vibrator,
ملخص المقالة :
The use of aluminum alloys in various industries, especially the automotive industries, to have less structural weight, is on the rise. The use of semi-solid forming process in addition to changes in the microstructure which improves the mechanical properties can reduce the volume of production and ultimately lead to the improvement of the structural weight. In this paper, optimization of the governing parameters is investigated in one method of the semisolid forming named the mechanical vibration. A380 grade aluminum alloy is cast in our study. The initial parameters that investigated here are the pouring temperature, frequency and holding vibration time. The output result is investigated on the hardness. As the result showed the hardness value of 80 is the best result. Also results showed that the temperature of the melt is the important parameter in this method. Also the hardness will be increased when the frequency and holding vibration time increases
[1] Jayesh B.P., Liu Y.Q., Guosheng Sh., Zhongyun F., Rheo-Processing of an Alloy Specifically Designed for Semi-Solid Metal Processing Based on The Al-Mg-Si System, Materials Science and Engineering A, Vol. 476, 2008, pp. 341-349.
[2] Davies G.J., Solification & Casting, Wily, the university of Michigan, ISBN 0470198710, 978047019871, 1973.
[3] Kolahdooz A., Nourouzi S., Bakhshi M., and Hosseinipour S.J., Experimental study and FEM simulation of the effect of significant parameters in the thixoforging of the gearbox cap, Solid Mechanics Journal, Islamic Azad University, Khomeinishahr Branch, Vol. 5, No. 1, 2012, pp. 47-56, In Persian.
[4] Khosravi H., Eslami-Farsani R., Askari-Paykani M., Modeling and optimization of cooling slope process parameters for semi-solid casting of A356 Al alloy, Transaction of Nonferrous Metal Society of China, Vol. 24, 2014, pp. 961−968.
[5] Nourouzi S., Kolahdooz A., Botkan M., Behavior of A356 Alloy in semi-solid state produced by mechanical stirring, Advanced Materials Research, Vol. 402, 2012, pp. 331-336.
[6] Kazemi A., Nourouzi S., Kolahdooz A., Gorji A., Experimental Investigation of Thixoforging Process on Microstructure and Mechanical Properties of the Centrifugal Pump Flange, Journal of Mechanical Science and Technology, Vol. 29, No. 7, 2015, pp. 2957-2965.
[7] Kolahdooz A., Nourouzi S., Bakhshi M., and Hosseinipour S.J., Experimental investigation of thixoforging parameters effects on the microstructure and mechanical properties of the helical gearbox cap, Journal of Mechanical Science and Technology, Vol. 28, No. 10, 2014, pp. 4257-4265.
[8] Kleiner S., Beffort O., Wahlen A., Uggowitzer P.J., Microstructure and mechanical properties of squeeze cast and semi-solid cast Mg–Al alloys, Journal of Light Metals, Vol. 2, 2002, pp. 277–280.
[9] Nourouzi S., Ghavamodini S.M., Baseri H., Kolahdooz A., Botkan M., Microstructure evolution of A356 aluminum alloy produced by cooling slope method, Advanced Materials Research, Vol. 402, 2012, PP. 272-276.
[10] Hosseini S.S., Nourouzi S., Hosseinipour S.J., Kolahdooz A., “Effect of slope plate variable and pouring temperature on semi-solid microstructure of A356 aluminum alloy, steel metal research, special issue of metal forming, 2012, pp. 779-782.
[11] Kang C.G., Bae J.W., Kim B.M., The grain size control of A356 aluminum alloy by horizontal electromagnetic stirring for rheology forging, Journal of Materials Processing Technology, Vol. 187-188, 2007, pp. 344-348.
[12] Kolahdooz A., Nourouzi S., Bakhshi M. and Hosseinipour S.J., Experimental investigation of the effect of temperature in semisolid casting using cooling slope method, Process of International Mechanical Engineering; Part E, Journal of Process Mechanical Engineering, Vol. 230, No. 4, 2016, pp. 316-325.
[13] Kolahdooz A., Nourouzi S., Bakhshi M., and Hosseinipour S.J., Investigation of the controlled atmosphere of semisolid metal processing of A356 aluminium alloy, Journal of Mechanical Science and Technology, Vol. 28, No. 10, 2014, pp. 4267-4274.
[14] Kolahdooz A., Nourouzi S., Bakhshi M., and Hosseinipour S.J., Study of various factors and the protective atmosphere on aluminum alloy properties in casting process with cooling slope method, Aerospace Mechanics Journal, Imam Hossein University, Vol. 11, No. 2, 2015, pp. 29-41, In Persian.
[15] Shabestari S.G., Parshizfard E., Effect of semi-solid forming on the microstructure and mechanical properties of the iron containing Al–Si alloys, Journal of Alloys and Compounds, Vol. 509, 2011, pp. 7973–7978.
[16] Nourouzi S., Baseri H., Kolahdooz A., Ghavamodini S.M., Optimization of Semi-Solid Metal Processing of A356 Aluminum Alloy, Journal of Mechanical Science and Technology, Vol. 27, No. 12, 2013, pp. 3869-3874.
