Performance evaluation of metal mould for casting aluminium alloy (AA6063) of scientific products in National agency for science and engineering infrastructure
https://doi.org/10.21122/1683-6065-2023-1-51-57
Abstract
The study investigated the major Causes of inconsistency in the cast results of the aluminium cast products from the metal moulds supplied by the then Hungarian Technical Partners to Scientific Equipment Development Institute, Minna. The metal moulds for different scientific products for Schools Scientific Laboratories were to achieve mass production of these products. The aluminium alloy A6063 ingot used were likewise imported. However, another consignment of the ingot used is produced in Nigeria by Nigerian Aluminium Extrusion Company, Lagos. Result of the products defects including shrinkage, blow holes, etc. remained the same, hence the need for this investigation work to ascertain the causes traceable to either moulds or the class or group of alloys.
The outcome as shown could be that pouring speed or melting temperature etcetera are responsible for the inconsistency in obtaining acceptable cast products at different operations and with these moulds. A particular product mould gives inconsistent cast products and varying defects. This is applicable to all the available moulds supplied to the Institute at the same time.
About the Authors
Sh. Abdullahi MohammedNigeria
Katsina, Katsina State
T. Abdullahi Mohammed
Nigeria
Katsina, Katsina State
S. Ibeh Chukwuemeka
Nigeria
Minna, Niger State
S. Anyanwu Samuel
Nigeria
Minna, Niger State
References
1. Kutz M. Handbook of materials selection. New York, John Wiley & Sons, 2002, 1486 p.
2. Al-Marahleh G. Effect of heat treatment on the distribution and volume fraction of Mg2Si in structural aluminium alloy 6063. Metal Science and Heat Treatment, 2006, no. 48 (5–6), pp. 205–209.
3. Eady J.A., Smith D. M. The effect of porosity on the tensile properties of Al‑alloy castings. Mat Forum, 1986, no.9 (4), pp. 217–223.
4. Askland D. R., Phule P. P. The science and engineering of materials. Toronto, Thomson, 2006, 863 p.
5. Alicia E. Ares, Raúl B. Rebak, María V. Biezma, Claudia M. Méndez. Corrosion of Nonferrous Metals and Their Alloys. Advances in Materials Science and Engineering, 2018, May, pp. 1–2.
6. Tolga D., Costas S. Recent developments in advanced aircraft aluminium alloys. Materials & Design, no. 56, pp. 862–871.
7. Fischer U. Mechanical and metal trades Handbook. Haan‑Gruiten, Europa‑Technical Book Series, Verlag Europa‑Lehrmittel, 2010, 428 p.
8. Lerner Y. S., Rao P. N. Metal casting. Principles & Techniques. University of Northern Iowa, American Foundry Society, 2013, 259 p.
9. Vaibhav I., Madhukar S. Defects, root causes in casting process and their remedies. International Journal of Engineering Research and Application, 2017, vol. 7, iss. 3, pp. 47–54.
10. Charles F. W. Gray and Ductile Iron Castings Handbook. Cleveland, Gray and Ductile Iron Founders’ Society, 1971, 679 p.
Review
For citations:
Abdullahi Mohammed Sh., Abdullahi Mohammed T., Ibeh Chukwuemeka S., Anyanwu Samuel S. Performance evaluation of metal mould for casting aluminium alloy (AA6063) of scientific products in National agency for science and engineering infrastructure. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2023;(1):51-57. (In Russ.) https://doi.org/10.21122/1683-6065-2023-1-51-57