Secondary Material Casting of Al-Si for Making Handle Brake in Variation of Duct

Abstract:

This study aims to determine the effect of the mold casting duct variations on shrinkage, porosity defects, density, hardness, and chemical composition of materials. The primary raw material uses melting secondary aluminium through a small-scale smelting furnace. Research study about three kinds of ducts: triangular duct, rectangular duct, and circular duct. The testing chemical composition uses an emission spectrometer. Research founds defects by comparing the dimensions of the original object with the specimen results of each duct variation. The density value calculates porosity defects. ASTM E10 standard Brinell test measures the hardness. Besides, ASTM E3 standard test quantifies the microstructure of the product. The highest average shrinkage is the triangular ducts at 3.68%. The least significant numbers of porosity were in rectangular ducts of 2.964 gr/ml. Higher the density value, the denser the material, and the more negligible the porosity. The density of the material affects the hardness material obtained from the results of the Brinell test. The hardness of the Brinell test brought that the rectangular duct with 102.5 BHN was the most enormous. In addition, the results showed that the chemical composition mainly contained mostly chemical elements (Al) 87.1% as the main chemical ingredient and (Si) 9.51%.

• Periodical: Key Engineering Materials (Volume 935)
• Pages: 55-61
• DOI: https://doi.org/10.4028/p-h8s8l4
• Online since: November 2022
• Authors: Patna Partono, Narendra Hidayat, Masyrukan Masyrukan, Muttaqin Rahmat Pangaribawa*
• Keywords: Aluminium Alloy (Al), Chemical Composition, Density, Duct Variations, Material Hardness, Porosity, Shrinkage

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