Pengaruh Variasi Pendingin Oli Sae 40, Oli Sae 90 Dan Oli Sae 140 Pada Hasil Coran Kuningan Menggunakan Cetakan Pasir Co₂

Febrianto, Muhammad and , Ir. Masyrukan., M.T. (2018) Pengaruh Variasi Pendingin Oli Sae 40, Oli Sae 90 Dan Oli Sae 140 Pada Hasil Coran Kuningan Menggunakan Cetakan Pasir Co₂. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

This research aims to determine the effect of cooling media variation on hardness test, porosity defect and micro photo. The material of this research was former brass from various components re-casted by using sand mold. This research examined the cooling media variations of SAE 40 oil, SAE 90 oil, and SAE 140 oil. The tests used chemical composition test, hardness test, porosity observation and micro photo test. The results of composition test were found some elements i.e. (Cu) 66.4%, (Zn) 27.9%, (Pb) 2.22%, (Sn) 1.38% which was the type of yellow brass. The largest of HRB hardness result was SAE 40 oil with an average value of 39.00 HRB, SAE 90 was 32.17 HRB, and SAE 140 was 27.98 HRB. The lowest of porosity observation was found in SAE 40 oil and the highest in SAE 140 oil variation. The result of micro photo on SAE 40 oil variation was found β phase, and micro photo on SAE 140 oil variation was found α phase.

Item Type: Karya ilmiah (Skripsi)
Uncontrolled Keywords: Brass (Cu-Zn), cooling medium, Chemical Composition, Hardness, Micro Structure.
Subjects: T Technology > TS Manufactures
Divisions: Fakultas Teknik > Teknik Mesin
Depositing User: MUHAMMAD FEBRIANTO
Date Deposited: 14 Jul 2018 07:17
Last Modified: 14 Jul 2018 07:18
URI: http://eprints.ums.ac.id/id/eprint/63326

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