Dependence of Reoxidation Effect on a Type of Gating System in Investment Casting Technology

• Autorzy: Herman A. , Vratny O.

Identyfikatory

DOI

10.24425/123610

• Języki publikacji: EN

Abstrakty

EN

Nowadays, there are growing demands on the accuracy of production. Most of this is reflected in precise manufacturing, such as the investment casting process. Foundries are looking for causes of defects in some cases for a very long time, and it may happen that the source of defects is completely different from what was originally assumed. During the casting process there exist potential causes of defects as oxygen inclusions. This paper represents a summary of the beginnings of a wider research that will address the problems of gating systems in investment casting technology. In general, the influence of the melt flow is underestimated and the aim of the whole scientific research is to demonstrate the significant influence of laminar or turbulent flow on the resulting casting quality. Specifically, the paper deals with the analysis of the most frequent types of defects found in castings made of expensive types of materials casted in an open atmosphere and demonstration of connection with the design of gating systems in the future.

Słowa kluczowe

EN

investment casting; gating system; oxide film; metallography

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 3
• Strony: 107--112
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Herman A.

• Czech Technical University in Prague, Faculty of Mechanical Engineering, Prague, Czech Republic

autor

Vratny O.

• Czech Technical University in Prague, Faculty of Mechanical Engineering, Prague, Czech Republic

Bibliografia

• [1] Kubelkova, I., Herman, A., Vratny, O. (2017). Evaluation of Critical Places on Wax Patterns of Blades, Proceedings of the 28th DAAAM International Symposium (pp.1126-1135), B. Katalinic (Ed.), Published by DAAAM International, ISBN 978-3-902734-11-2, ISSN 1726-9679, Vienna, Austria. DOI: 10.2507/28th.daaam.proceedings.157.
• [2] Herman, A., Česal, M.A. & Píša, V. (2014). Measuring Wax Properties as Input Data to Simulation Software Database. Strojírenská Technologie. XIX(1), 8-12. ISSN 1211-4162. (in Czech).
• [3] Ed. and Sci. Elab. Beneš, L., Ulewicz, R. (2012). New trends in the field of materials and technologies engineering: monography. Częstochowa: Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji. ISBN 9788393422524.
• [4] Herman, A., Vrátný, O., Kubelková, I. (2016). Assessment of critical sites on wax models of blades. Velká Bíteš: PBS Velká Bíteš. (in Czech).
• [5] Bonollo, F., Odorizzi, S. (2001). Numerical simulation of foundry processes. Padova: Servizi grafici editoriali. ISBN 9788886281638.
• [6] Reduce Turnaround Times with ESI ProCAST (2016). ESItalk: Preparing for the Factory of the Future. Computer optimization of vertical gating system designs. (48), 1, (10).
• [7] Huang, P-H & Lin, C-J. (2015). Computer-aided modeling and experimental verification of optimal gating system design for investment casting of precision rotor. The International Journal of Advanced Manufacturing Technology. 79(5-8), 997-1006. DOI: 10.1007/s00170-015-6897-5. ISSN 0268-3768. Available from: http://link.springer.com/10.1007/s00170-015-6897-5.
• [8] Thammachot, N., Dulyapraphant, P. & BOHEZ, E.L.J. (2013). Optimal gating system design for investment casting of sterling silver by computer-assisted simulation. The International Journal of Advanced Manufacturing Technology. 67(1-4), 797-810. DOI: 10.1007/s00170-012-4523-3. ISSN 0268-3768. Available from: http://link.springer.com/10.1007/s00170-012-4523-3.
• [9] Zhang, Xi-e, Li, S-Q., Luo, H-l., Cao X., Feng, D. &. Li, S-P (2007). Simulation of Ni 3 Al-based Alloy and Investment Casting Process of its Thin Wall Castings. Israel Journal of Chemistry. 47(3-4), 363-368. DOI: 10.1560/IJC.47.3-4.363. ISSN 00212148. Available from: http://doi.wiley.com/ 10.1560 /IJC.47.3-4.363.
• [10] Smirnov, V.V., Pavlinich, S.P., Bakerin, S.V. & Khairullina, A.M. (2014). Use of ProCAST Software to Model Casting Systems for the Centrifugal Casting of GTE Blades Made of Intermetallic Alloys. Metallurgist. 57(11-12), 961-964. DOI: 10.1007/s11015-014-9829-y. ISSN 0026-0894. Available from: http://link.springer.com/10.1007/s11015-014-9829-y.
• [11] Campbell, J. (2011). Complete casting handbook: metal casting processes, metallurgy, techniques and design. Waltham, MA: Elsevier Butterworth-Heinemann,. ISBN 978-1-85617-809-9.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).