KHUKHUH AULIA RACHMAN (2021) PENGARUH KECEPATAN PUTAR TERHADAP SIFAT MEKANIS SAMBUNGAN BUTT ALUMINIUM A5005 DENGAN TEMBAGA. D3 thesis, Universitas Muhammadiyah Yogyakarta.
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Abstract
The splicing of disimilar materials between aluminum and copper using the fusion method has several drawbacks such as porosity, distortion, and cracks during solidification, this reason makes the fusion method less effective when applied in splicing dissimilar materials. One of the breakthroughs that can cover the shortcomings is the solid state welding method, one of which is (FSW) Friction Stir Welding which can reduce defects formed and is cheaper in cost. This study aims to determine the mechanical properties of the connection and the microstructure formed on the connection of aluminum A5005 and pure copper using the FSW method FSW welding carried out parameters of rotational speed variations of 540 rpm, 910 rpm, 1500 rpm and 2280 rpm, with variations of welding speed control 50 mm/min shoulder diameter 18mm, pin diameter 4 mm. The results of the connection are carried out by mechanical and physical tests which include tensile testing and microhardness testing, as well as physical testing to determine the defects formed from the connection and the microstructure resulting from disimilar welding of aluminum with copper. Based on the results of the analysis obtained from the research conducted, it is known that the higher the value of the rotational speed used, the lower the value of the tensile strength of the joint. The highest tensile strength value (UTS) was obtained at a variation of 540 rpm with a value of 58.21 MPa and the lowest tensile strength value was obtained at the highest rotational speed variation of 2280 rpm with a tensile strength value of 28.50 rpm with cavity and crack formed defects. The data obtained from the hardness test also stated that the higher the rotational speed variation, the lower the hardness value in the HAZ and stir zone areas. The highest hardness value was obtained at 540 rpm rotational speed variation with a value of 67.0 VHN0.3 in the stir zone.
Item Type: | Thesis (D3) |
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Uncontrolled Keywords: | FRICTION STIR WELDING, ROTATE SPEED, HARDNESS, TENSILE STRENGTH, ,MICROSTRUCTURE |
Divisions: | Fakultas Teknik > Teknik Mesin S1 |
Depositing User: | M. Erdiansyah |
Date Deposited: | 17 May 2022 07:25 |
Last Modified: | 17 May 2022 07:25 |
URI: | https://etd.umy.ac.id/id/eprint/29144 |