Pengaruh Penambahan Unsur Aluminium Murni Pada Bahan Aluminium Scrap Terhadap Ketangguhan Impak Dan Struktur Mikro Hasil Pengecoran Velg Motor Honda


Ahmad Dahlan, - and Rusiyanto, FT Pendidikan Teknik Mesin (2021) Pengaruh Penambahan Unsur Aluminium Murni Pada Bahan Aluminium Scrap Terhadap Ketangguhan Impak Dan Struktur Mikro Hasil Pengecoran Velg Motor Honda. Jurnal Dinamika Vokasional Teknik Mesin, 6 (1). ISSN 2598-392X

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Abstract

This study aimed to determine the effect of pure aluminum addition to aluminum scrap material on impact toughness and microstructure. This experiment studied an alloy of scrap aluminum and the addition of pure aluminum into it in various amounts. A spectrotest yields the aluminum element composition is 92% on the original motorcycle rim and 81% on the scrap aluminum. The studied variation of pure aluminum addition is 4%, 8%, and 12%. The manufacturing process uses smelting, and pure aluminum was added during the process. The smelting products were tested mechanically using impact strength and microstructure according to ASTM standard. The results show that the highest impact strength is from the addition of 12% pure aluminum. The impact strength is 0.0347 J/mm2, compared to the original motorcycle rim of 0.0336 J/mm2. The added aluminum serves to provide ductility to the alloy, increasing its mechanical properties. Test results show that the microstructure has an increasingly tight eutectic phase and has almost the same characteristics as the original motorcycle rim. It can be concluded that the addition of aluminum affects the impact strength, in which it causes a dense aluminum�silicon phase of the material.

Item Type: Article
Uncontrolled Keywords: aluminum, scrap, impact, micro structure, motorcycle rims
Subjects: T Technology > TJ Mechanical engineering and machinery
Fakultas: Fakultas Teknik > Pendidikan Teknik Mesin, S1
Depositing User: mahargjo hapsoro adi
Date Deposited: 19 Jan 2022 02:13
Last Modified: 19 Jan 2022 02:13
URI: http://lib.unnes.ac.id/id/eprint/48517

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