Effect of Input Parameters on The Mechanical Properties of Green Sand Mould
DOI:
https://doi.org/10.24425/afe.2025.153782Abstract
Among all the methods of metal forming, green sand moulding is the most commonly used method due to its low cost and high speed of work. Main constituents of green sand mould are sand, water, coal dust and binder. Mechanical properties like permeability, green compressive strength, mould hardness, compactibility and moisture content of green sand directly affects the quality of castings produced. This research is done to investigate the effect of input parameters (bentonite, garcolap powder, water) on the mechanical properties of green sand mould. Three levels of each input parameter were considered, and the experiments were designed using design expert software version-13. The regression analysis was performed on the experimental results using Minitab software version-21 to evaluate the effect of bentonite, garcolap powder and water on mechanical properties of green sand mould. Twenty experiments were designed by the software. Values of mechanical properties of green sand like compactibility, permeability, mould hardness, green compressive strength and moisture content were measured by performing experiments on specimen prepared from green sand in accordance with the IS: 1918-1966. Measured values were compared with the standard for validation. Results of this research clearly indicate that bentonite is the only input parameter which has the highest effect on mechanical properties of green sand mould.References
[1] Khan, M.M., Mahajani, S.M. & Jadhav, G.N. Transformation of bentonite used in green sand molds during metal casting process and its relevance in sand reclamation. Applied Clay Science. 206, 1066072. https://doi.org/10.1016/j.clay.2021.106072.
[2] Sahoo, P.K., Pattnaik, S. & Sutar, M.K. (2021). Investigation of the foundry properties of the locally available sands for metal casting. Silicon. 13(11), 3765-3775. DOI:10.1007/s12633-020-00677-x.
[3] Kamińska, J., Puzio, S., Angrecki, M. & Stachowicz, M. (2020). The effect of the addition of bentonite clay to traditional sand mixtures on the surface quality of iron castings. Journal of Ecological Engineering. 21(1), 160-167. DOI: 10.12911/22998993/112505.
[4] Muhammad N. & Siddiqua, S. (2019). Stabilization of silty sand using bentonite-magnesium-alkalinization: Mechanical, physicochemical and microstructural characterization. Applied Clay Science. 183, 105325. DOI: 10.1016/j.clay.2019.105325.
[5] Khan, M.M., Mahajani, S.M., Jadhav, G.N., Vishwakarma, R., Malgaonkar, V. & Mandre, S. (2021). Mechanical and thermal methods for reclamation of waste foundry sand. Journal of Environmental Management. 279, 111628. DOI:10.1016/j.jenvman.2020.111628.
[6] Khan, M.M. Singh, M., Jadhav, G.N., Mahajani, S.M. & Mandre, S. (2020). Characterization of waste and reclaimed green sand used in foundry processing. Silicon. 12(3), 677-691. DOI: 10.1007/s12633-019-00146-0.
[7] Reddy, M.A.K. & Rao V. R. (2019). Utilization of Bentonite in Concrete: A Review. International Journal of Recent Technology and Engineering. 7(6C2), 541-545.
[8] Vadlamudi, S. & Mishra, A.K. (2018). Consolidation characteristics of sand–bentonite mixtures and the influence of sand particle size. Journal of Hazardous, Toxic and Radioactive Waste. 22(4), 06018001. DOI: 10.1061/(asce)hz.2153-5515.0000409.
[9] Thakur Y. & Yadav, R.K. (2018). Effect of bentonite clay on compaction, CBR and shear behaviour of narmada sand. International Research Journal of Engineering and Technology. 5(3), 2087-2090.
[10] Paź, S., Drożyński, D., Górny, M. & Cukrowicz, S. (2019). Properties of bentonites and bentonite mixtures used in Casting Processes. Archives of Foundry Engineering. 19(2), 35-40. DOI: 10.24425/afe.2019.127113.
[11] Vinothraj, D., Ragavanantham, S., Saravanakumar, M., Vivekananthan, M. & Sivagnanamani, G.S. (2020). Heat dissipation and inter-relationship between physical properties of moulding sand. Materials Today: Proceedings. 37(2), 1809-1812. DOI:10.1016/j.matpr.2020.07.398.
[12] Sadarang, J., Nayak, R.K. & Panigrahi, I. (2020). Effect of binder and moisture content on compactibility and shear strength of river bed green sand mould. Materials Today: Proceedings, 46(11), 5286-5290. DOI:10.1016/j.matpr.2020.08.640.
[13] Shilpa, M., Prakash, G.S. & Shivakumar, M.R. (2020). A combinatorial approach to optimize the properties of green sand used in casting mould. Materials Today: Proceedings. 39(4), 1509-1514. DOI:10.1016/j.matpr.2020.05.465.
[14] Ochepo, J. (2020). Effect of rice husk ash on the hydraulic conductivity and unconfined compressive strength of compacted bentonite enhanced waste foundry sand. LAUTECH Journal of Civil and Environmental Studies. 5(1), 85-96. DOI: 10.36108/laujoces/0202/50(0190).
[15] Harrou, A., Gharibi, E., Nasri, H., Fagel, N., El Ouahabi, M. (2020). Physico-mechanical properties of phosphogypsum and black steel slag as aggregate for bentonite-lime based materials. Materials Today: Proceedings. 31(1), S51-S55. DOI: 10.1016/j.matpr.2020.05.819.
[16] Kamińska, J., Puzio, S. & Angrecki, M. (2020). Effect of bentonite clay addition on the thermal and mechanical properties of conventional moulding sands. Archives of Foundry Engineering. 20(1), 111-116. DOI:10.24425/afe.2020.131291.
[17] Kumar A. & Lingfa, P. (2020). Sodium bentonite and kaolin clays: Comparative study on their FT-IR, XRF, and XRD. Materials Today: Proceedings. 22(3), 737-742. DOI: 10.1016/j.matpr.2019.10.037.
[18] Stec, K., Cholewa, M. & Kozakiewicz, Ł. (2020). Technological properties of thermo-insulating moulding sands with organic binder. Archives of Foundry Engineering. 20(2), 105-110. DOI: 10.24425/afe.2020.131311.
[19] Abdulamer, D. (2023). Optimizing sand moulding process through regression models and destructive testing. Archives of Foundry Engineering. 23(4), 163-168. DOI: 10.24425/afe.2023.148959.
[20] IS: 12446-2007 "Bentonite for use in Foundries Specification".
[21] IS: 1918-1966 "Indian Standard Methods of Physical Tests for Foundry Sands".
