Abstract
Two causes of casting defects are the defects developed by solidification and by filling in mold cavity. For the solidification it is easily predicted from observing casting’s 3D geometry. For the filling, it is very difficult. Since the mold is opaque the filling condition cannot be observed directly. Many casting defects such as bi-film defect, gas bubbles, loosed sand and etc., are produced by turbulent filling. The defects entrapped and floated within casting result in unreliable casting properties.
To control the liquid metal flow in mold cavity, a good and reliable runner system design becomes important. In this study a foundry is introduced to explain how they use so called Campbell’s 10 rules and Computational Fluid Dynamics (CFD) numerical software to design a good runner system. A good and reliable casting is controlled by a good runner system design. Weibull probability parameters are plotted to suggest this good runner system.
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References
Campbell, J., Complete Casting, Handbook, Metal Casting Process, Metallurgy, Techniques and Design, 2011: Butterworth-Heinemann, pp. 347–348.
Campbell, J., Castings. 2003: Butterworth-Heinemann, pp.32., pp40–44.
Runyoro J., Campbell J., (1992), The running and gating of light alloys, The Foundryman, Apr., pp.117–124.
Grube K.R., Kura J.G., (1955), Principles applicable to vertical gating, Trans. AFS, v.63, pp.35–48.
Green N.R., Campbell J., (1993), Statistical distributions of fracture strengths of cast Al-7Si-Mg, Materials Science and Engineering, A173, 261–266.
Campbell J., 2004, Castings Practice the 10 rules of castings, Elsevier Butterworth-Heinemann.
Fu-Yuan Hsu, Huey-Jiuan Lin, Foam filters used in gravity casting, Metallurgical and Materials Transactions B: Volume 42, Issue 6 (2011), Page 1110–1117.
Green N.R and Campbell J., 1993, Statistical distributions of fracture strengths of cast Al-7Si-Mg, Materials Science and Engineering, A173, 261–266.
Green N.R. and Campbell J., 1994, influence of oxide film filling defects on the strength of Al-7Si-Mg alloy castings, Trans. AFS, pp.341–347.
Tiryakioglu, M., Campbell, J., 2010. Metallurgical and Materials Transactions A 41A (December), 3121–3129.
Fu-Yuan Hsu and Yao-Ming Yang, CONFLUENCE WELD IN AN ALUMINUM GRAVITY CASTING, Journal of Materials Processing Technology 212 (April 2012) 825 – 840.
Flow Science, manual, http://www.flow3d.com
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Hsu, FY., Wang, KN., Li, CL. (2016). The Reliability of Ductile Casting Iron Dependent on Runner System Design: An Example of Support Bracket of Brake Caliper. In: Tiryakioǧlu, M., Jolly, M., Byczynski, G. (eds) Shape Casting: 6th International Symposium. Springer, Cham. https://doi.org/10.1007/978-3-319-48166-1_13
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DOI: https://doi.org/10.1007/978-3-319-48166-1_13
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48622-2
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