ANALISIS STRUKTUR HASIL REPAIR WELDING TENTANG SIFAT FISIK DAN MEKANIK PADA CAST WHEEL ALUMINIUM DENGAN METODE PENGELASAN MIG

Andoko, Awi and Harjanto, Budi and Estriyanto, Yuyun (2012) ANALISIS STRUKTUR HASIL REPAIR WELDING TENTANG SIFAT FISIK DAN MEKANIK PADA CAST WHEEL ALUMINIUM DENGAN METODE PENGELASAN MIG. Nosel, 1 (3). pp. 1-13.

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    Abstract

    This research aim to determine the chemical composition of the aluminum alloys, microstructure, hardness and impact strength before and after MIG welding method on the aluminum cast wheel. The electrodes used in the welding process is ER 535. The material used in this study is aluminum cast wheel with specifications: dimensions 16x7, PCD 4x120 product type of E35. The testing methods conducted in this study are chemical composition, microstructure test, hardness test and impact test. The equipment used are Spectrometer Metal Scan, Olympus Metallurgycal Microscope, Brinell Hardness Tester and Charpy Tester. The test results showed that the chemical composition of the aluminum cast wheel contains elements of 91.36% Al, 7.38% Si, and 0.803% Fe as well 0.05% Cu and Mg. The test results show that the microstructure of Al grain structure in the HAZ region fused with primary aluminum (α-Al) and grain Si Si alloy formed between the primary α-Al. The results of hardness test show that in the raw materials specimens is 57.56 kgf/mm², in the weld area is 44.20 kgf/mm² and the HAZ is 37.73 kgf/mm². The results of impact test on the raw material is 0.118 Joule/mm², while the weld area is 0.067 Joules/mm². The results of the test show that, hardness and impact strength due to welding less than the raw material on the aluminum cast wheel. Keywords: Cast wheel, aluminium welding, MIG welding, repair welding, material testing.

    Item Type: Article
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Divisions: Fakultas Keguruan dan Ilmu Pendidikan > Pendidikan Teknik Mesin
    Depositing User: Lia Primadani
    Date Deposited: 09 Jul 2013 01:26
    Last Modified: 09 Jul 2013 01:26
    URI: https://eprints.uns.ac.id/id/eprint/1311

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