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Al-Si and Al-Si-Mg Cast Alloys Shrinkage Porosity Estimation

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
US A356 and US 413 cast aluminium alloys shrinkage characteristic have been discussed in the present study. Specific volume reduction leads to shrinkage in castings and it can be envisaged as a casting defect. Finite difference based casting process simulation software has been used to study the shrinkage characteristic and it is quantified using mathematical formulae. The three dimensional model of the shrinkage defect has been constructed using CAD application software. Shrinkage characteristic has also been quantified through experimental validation studies and compared well with casting process simulation. Shrinkage characteristic study and control is essential for producing defect free castings. Influence of casting shape on the shrinkage characteristic has been studied in this paper.
Rocznik
Strony
61--68
Opis fizyczny
Bibliogr. 24 poz., il., rys., tab.
Twórcy
autor
  • MGIT, Hyderabad, National Institute of Technology, Trichy
  • MGIT, Hyderabad, National Institute of Technology, Trichy
Bibliografia
  • [1] ASM Metals Handbook Volume 15, Casting, ASM INTERNATIONAL, The Materials Information Company.
  • [2] Flemings, M.C. (1974).Solidification Processing, McGraw-Hill Inc. London.
  • [3] Reis, A., Xu, Z., Van Tol, R. Santos, A.D., Barbedo Magalhães, A. (2005). Modeling of The Underpressure Occurring During the Shrink Porosity Formation, III International Conference on Computational Plasticity, Complas VIII, E. Oñate and D. R. J. Owen (Eds), © Cimne, Barcelona.
  • [4] Simulating Porosity in Ductile Iron Castings, Calcom SA, Parc Scientifique EPFL, CH-1015 Lausanne, Switzerland.
  • [5] Sundarrajan, S., Roshan, H. Md., Ramachandran, E. G. (1984). Studies on shrinkage characteristics of binary Mg-Al alloys, Transactions of The Indian Institute of Metals, Vol. 37, No.4, August 1984.
  • [6] Chvorinov, N. (1940). Theory of the Solidification of Castings. Geisserei, 27. 177-225.
  • [7] Ravi, B. (2008). Casting Method Optimization driven by Simulation, Metals and Minerals Review, Vol. 34, No. 3, 39-43, 2008.
  • [8] Scarber, Jr. P. & Littleton, H. (2008). Simulation of Macro-porosity in Aluminium lost foam castings, , Paper 08-145, AFS Transactions, 1061-1068.
  • [9] Use of Simulated Porosity for Avoidance of Casting Defects, (1994). Arno Louvo and Matti Sirviö VTT Manufacturing Technology, Finland Presented at World Foundry Conference in Düsseldorf, Germany.
  • [10] Louvo, A., Sirviö. M, (1994). Use of Simulated Porosity for Avoidance of Casting Defects, VTT Manufacturing Technology, Finland, World Foundry Conference in Düsseldorf, Germany.
  • [11] Virtual casting user manual.
  • [12] Foseco Non-Ferrous Foundry man’s Handbook. (2008). Eleventh edition, Revised and edited by, John R. Brown, Butterworth Heinemann publisher.
  • [13] Sundarrajan, S., Roshan, H. Md., Ramachandran, E. G. (1983). Studies on influence of process parameters on fluidity of Mg-Al alloys, Presented in 37th ATM of IIM, 119.
  • [14] Sundarrajan, S., Roshan H. Md., Ramachandran, E. G. (1983). Studies on fluidity characteristics of binary Mg-Al alloy, Proc. of IIF, 32nd Annual Conference. 21 – 31.
  • [15] Bochvar, A.S. & Zhadaeva, O. S. (1941). Theory of shrinkage phenomena in alloys, Liteinsedelo No. 5.
  • [16] Venkataramana, M., Vasudeva Rao, V. Ramgopal Varma, R. & Sundarrajan S. (2008). Instrumentation to Measure Heat Transfer Coefficient at the Metal Mold Interface, J. Instrum. Soc. India 37(3) 157-163, 2008.
  • [17] Cellini, G. S. & Tomesani, L. (2008). Metal head – dependent HTC in sand casting simulation of aluminium alloys, Journal of Achievements in Materials and Manufacturing Engineering, Volume 29 Issue 1 July.
  • [18] Kishore, A. Prasanna Kumar, T.S. (2004). Fixing Boundary Conditions for Solidification Simulation of Aluminium Alloy Plate Casting, International Symposium of Research Students on Material Science And Engineering, December 20-22, Chennai, India, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras.
  • [19] Trovant, M. (1998). A Boundary Condition Coupling Strategy for the Modeling of Metal Casting Processes, , National Library of Canada, Acquisitions and Bibliographic Services, 395 Wellington Street, Ottawa ON K1AON4, Canada.
  • [20] Davies, J.L. & Kondic, V. (1976). Mechanism of formation of shrinkage cavities in castings, The British Foundryman, Vol. 69, 39.
  • [21] Hydrostatic tension in solidifying materials, Trans. Metallurgical Society of AIME, Vol. 242, p. 264, (1968).
  • [22] Losano, F. Marinsek, G. Marlo, A.M. Ricci M. (1999). Computer Tomography in the Automotive Field Development of new engine Head case study, DGZfP Proceedings BB 67-CD, Paper 10.
  • [23] Davies, J.L. & Kondic, V. (1976). Mechanism of formation of shrinkage cavities in castings, The British Foundryman, Vol. 69, 39, 1976.
  • [24] Hydrostatic tension in solidifying materials, Trans. Metallurgical Society of AIME, Vol. 242, 264, 1968.
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-548b86d0-af3c-4c4a-862f-32be9cd4e85a
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