Analisa Scanning Electron Microscope (SEM) Hasil Spot Welding Aluminium (Al) Dengan Penambahan Serbuk Tembaga (Cu) Mesh 50

Adamsyah, Zidhan Dhuha Nur and , Ir. Pramuko Ilmu Purboputro, MT. (2021) Analisa Scanning Electron Microscope (SEM) Hasil Spot Welding Aluminium (Al) Dengan Penambahan Serbuk Tembaga (Cu) Mesh 50. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

This study aims to determine the effect of adding copper powder with a mesh size of 50 on spot welding with aluminum metal by testing the Vickers microhardness test, microstructure test and SEM (Scanning Electron Microscope) test. Welding in this study used aluminum 1100 series and copper mesh 50. In this study to determine the value of hardness, microstructure and SEM-EDX. This test uses the ASTM E384 standard for the Vickers microhardness test, micro-photo test with a Metallographic Microscope and SEM-EDX to determine the topography and composition. The results of the hardness test showed the highest hardness results in the nugget area with a value of 50.14 VHN, then the HAZ area with a value of 38.61 VHN and finally the Base Metal area with a value of 35.64 VHN. For microstructural images in the nugget area, it produces finer grains, then in the HAZ region the grain size is small and in the Base Metal region the grain size is large. The SEM test indicated defects such as porosity, cracks and voids. This EDX test shows that copper (Cu) dominates in the connection area.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	las titik, Aluminium dan Tembaga, Kekersan, Struktur Mikro dan Scanning Electron Microscope.
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	ZIDHAN DHUHA NUR ADAMSYAH
Date Deposited:	17 Nov 2021 01:02
Last Modified:	17 Nov 2021 01:02
URI:	http://eprints.ums.ac.id/id/eprint/95642

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