The control of solidification kinetics of the vacuum-cast thin-wall nickel-based superalloys by changing the geometrical characteristics of the ceramic mold

• Autorzy: Cygan R. , Szeliga D. , Rokicki P. , Sieniawski J. , Suchy J. S.
• Języki publikacji: EN

Abstrakty

EN

This paper provides an analysis of experimental research and results of investment casting process. Temperature field in a ceramic mold is one of the problems during numerical simulation. Reducing the costs of production in precision casting involves the reduction of scraps, which is one of the fundamental problems of the foundry industry. Reducing these costs is associated with optimization of precision casting technology of aircraft engines critical parts, including control of the solidification front in thin-walled castings of nickel super alloys cast in a vacuum. It is achieved by changing the geometrical characteristics of the ceramic mold. The results of the tests were used to optimize the industrial production of aircraft components in Precision Foundry of WSK Rzeszów. Temperature distribution gained in the conducted tests allowed verification and optimization of computer simulations.

Słowa kluczowe

EN

nickel based superalloy; ceramic mold; thin walled casting; investment casting

PL

nadstop niklu; forma ceramiczna; odlewanie cienkościenne; odlewanie precyzyjne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2013
• Tom: Vol. 13, iss. 4
• Strony: 21--28
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Cygan R.

• Investment Casting WSK „PZL-Rzeszów” S.A.

autor

Szeliga D.

• Rzeszow University of Technology

autor

Rokicki P.

• Rzeszow University of Technology

autor

Sieniawski J.

• Rzeszow University of Technology

autor

Suchy J. S.

• AGH University of Science and Technology Krakow

Bibliografia

• [1] Cygan, R., Sobczak, N. & Suchy, J.S. (2010). Thermal and physical properties of nickel superalloy and ceramic mold used for computer simulation. International Foundry Research. 62(1), 30-34.
• [2] Cygan, R., Sobczak, N. & Suchy, J.S. (2009). Interaction: Ceramic mold – metal in nickel superalloy casting. International Foundry Research. 61(3), 16-21.
• [3] Furgał, G. & Cygan, R. (2009). Quality problems root cause identification and variability reduction in casting processes. Archives of Foundry Engineering. 9(1), 13-16.
• [4] Budzik, G., Matysiak, H., Cygan, R., Bąk, S. & Cygnar, M. (2010). Rapid prototyping process of monocrystal aircraft engine blades. Journal of Kones Powertrain and Transport. 81-86.
• [5] Moskal, G., Cwajna, J., Bińczyk, F., Cygan, R., Witala, B. (2010). Influence of measurement results of thermal conductivity and heat transfer coefficients on the simulation results of casting process of aircraft engine elements made of monocrystalline and directionally crystallized superalloys, 6th International Conference on Diffusion in Solids and Liquids: Mass Transfer, Heat Transfer and Microstructure and Properties, DSL 2010, Paris, France 5-7 July, pp. 266.
• [6] Sieniawski, J. (2002). Development of design methods and the assessment of the microstructure and properties of structural materials for aircraft technicians, Red. M. Hetmańczyk: Postępy nauki o materiałach i inżynierii materiałowej. Wyd. Pol. Śląskiej, Katowice.
• [7] Sieniawski, J. (1995). Criteria and methods of evaluation of the components of turbine aircraft engines. Rzeszów: Oficyna Wydawnicza Politechniki Rzeszowskiej.
• [8] Beeley, P.R., Smart, R.F. (1995). Investment casting. University Press, Cambridge UK.