Evaluasi Efisensi Riser Untuk Bentuk Riser Samping yang Berbeda Menggunakan Metode Simulasi Casting

  • Galuh Bahari Universitas Gadjah Mada
  • Benidiktus Tulung Prayoga Politeknik Negeri Cilacap
Abstract views: 113 , PDF downloads: 108
Keywords: riser shape, riser efficiency, casting simulation, shrinkage, side riser

Abstract

As the solidification reaches the hot spot area, no molten metal remains and shrinkage is formed. To anticipate the shrinkage, a riser is added to the casting system. An optimal riser design would produce free shrinkage components. One of the factors that affect riser efficiency is the riser shape. This study aims to find the most efficient side riser shape by using simulation software. The riser shape of tubes, tubes with a half sphere on top, hemispheres, conical tubes, tubes with an oval cross-section, and cubes are used in this experiment, with the volume of all risers kept constant. The most efficient shape of the riser is the tube. The tube riser produces a larger modulus. The tube riser generated directional solidification. The same pattern can be seen in the niyama criteria and solidification temperature, where the tube riser has a more continuous pattern compared to other riser shapes.

 

References

K. Salonitis, B. Zeng, H. A. Mehrabi, and M. Jolly, “The Challenges for Energy Efficient Casting Processes,” in Procedia CIRP, 2016. doi: 10.1016/j.procir.2016.01.043.

G. A. Hodbe and B. R. Shinde, “Design and Simulation of LM 25 Sand Casting for Defect Minimization,” in Materials Today: Proceedings, 2018. doi: 10.1016/j.matpr.2017.12.018.

M. M. Shuvo and G. Manogharan, “Novel riser designs via 3D sand printing to improve casting performance,” in Procedia Manufacturing, 2021. doi: 10.1016/j.promfg.2021.06.052.

T. Skrzypczak, E. Węgrzyn-Skrzypczak, and L. Sowa, “Investigation of the impact of geometry of the riser on the location and shape of shrinkage cavity,” MATEC Web of Conferences, vol. 254, 2019, doi: 10.1051/matecconf/201925402010.

P. Futáš, A. Pribulová, G. Fedorko, V. Molnár, A. Junáková, and V. Laskovský, “Failure analysis of a railway brake disc with the use of casting process simulation,” Eng Fail Anal, vol. 95, 2019, doi: 10.1016/j.engfailanal.2018.09.005.

H. Y. Seo, P. K. Seo, and C. G. Kang, “A study on the S/W application for a riser design process for fabricating axisymmetric large offshore structures by using a sand casting process,” International Journal of Naval Architecture and Ocean Engineering, vol. 11, no. 1, 2019, doi: 10.1016/j.ijnaoe.2018.08.003.

B. Tadele Bekele, J. Bhaskaran, S. Dufera Tolcha, and M. Gelaw, “Simulation and experimental analysis of re-design the faulty position of the riser to minimize shrinkage porosity defect in sand cast sprocket gear,” Mater Today Proc, vol. 59, 2022, doi: 10.1016/j.matpr.2021.12.090.

L. Sowa, T. Skrzypczak, and P. Kwiatoń, “The influence of riser shape on feeding effectiveness of solidifying casting,” Archives of Foundry Engineering, vol. 19, no. 4, 2019, doi: 10.24425/afe.2019.129636.

L. Sowa, T. Skrzypczak, and P. Kwiaton, “NUMERICAL EVALUATION OF THE IMPACT OF RISER GEOMETRY ON THE SHRINKAGE DEFECTS FORMATION IN THE SOLIDIFYING CASTIN,” Archives of Metallurgy and Materials, vol. 67, no. 1, 2022, doi: 10.24425/amm.2022.137487.

I. Malik, A. A. Sani, and A. Medi, “Study on using Casting Simulation Software for Design and Analysis of Riser Shapes in a Solidifying Casting Component,” in Journal of Physics: Conference Series, 2020. doi: 10.1088/1742-6596/1500/1/012036.

T. Wang and S. Yao, “Research of Feeding Effect of Ductile Cast Iron under Different Riser Conditions,” Metals (Basel), vol. 12, no. 3, 2022, doi: 10.3390/met12030412.

H. Y. Seo, C. K. Jin, and C. G. Kang, “Design of a gate system and riser optimization for turbine housing and the experimentation and simulation of a sand casting process,” Advances in Mechanical Engineering, vol. 10, no. 8, 2018, doi: 10.1177/1687814018795045.

V. Khalajzadeh and C. Beckermann, “Simulation of Shrinkage Porosity Formation During Alloy Solidification,” Metall Mater Trans A Phys Metall Mater Sci, vol. 51, no. 5, 2020, doi: 10.1007/s11661-020-05699-z.

E. S. Ivanina, V. P. Monastyrskiy, and M. Y. Ershov, “Quantitative Estimation of Formation of Shrinkage Porosity by the Niyama Criterion,” Inorganic Materials: Applied Research, vol. 13, no. 1, 2022, doi: 10.1134/S2075113322010130.

A. Abootorabi, B. Korojy, and M. A. Jabbareh, “Effect of mould design on the Niyama criteria during solidification of CH3C 80t ingot,” Ironmaking and Steelmaking, vol. 47, no. 7, 2020, doi: 10.1080/03019233.2019.1583879.

B. Zhou, D. Wu, R. Chen, and E. H. Han, “Prediction of Shrinkage Microporosity in Gravity-Cast and Low-Pressure Sand-Cast Mg–6Gd–3Y–0.5Zr Magnesium Alloys,” Adv Eng Mater, vol. 21, no. 12, 2019, doi: 10.1002/adem.201900755.

PlumX Metrics

Published
2023-07-31