Studi Pengecoran Aluminium Dengan Metode Centrifugal Die Casting Dan Centrifugal Investment Casting Terhadap Density, porositas, Struktur Mikro dan Kekerasan

BAGAS PRAKOSO, IMAM and , Patna Partono, S.T., M.T. (2021) Studi Pengecoran Aluminium Dengan Metode Centrifugal Die Casting Dan Centrifugal Investment Casting Terhadap Density, porositas, Struktur Mikro dan Kekerasan. Skripsi thesis, Universitas Muhammadiyah Surakarta.

	PDF (Naskah Publikasi) NASKAH PUBLIKASI.pdf Download (1MB)
	PDF (Bab I) bab i.pdf Download (3MB)
	PDF (Bab II) bab ii.pdf Restricted to Repository staff only Download (3MB) | Request a copy
	PDF (Bab III) bab iii.pdf Restricted to Repository staff only Download (3MB) | Request a copy
	PDF (Bab IV) bab iv.pdf Restricted to Repository staff only Download (3MB) | Request a copy
	PDF (Lampiran) lampiran.pdf Restricted to Repository staff only Download (3MB) | Request a copy
	PDF (Halaman Depan) halaman depan ok.pdf Download (3MB)
	PDF (Bab V) bab v ok.pdf Restricted to Repository staff only Download (3MB) | Request a copy
	PDF (Daftar Pustaka) daftar pustaka ok ok.pdf Download (3MB)
	PDF (Surat Pernyataan Publikasi) surat pernyataan publikasi.pdf Restricted to Repository staff only Download (71kB) | Request a copy

Abstract

This study aims to compare the methods of Centrifugal Die Casting and Centrifugal Investment Casting on the chemical composition of density, porosity, microstructure and hardness with aluminum as raw material from used pistons. In this study, using the Centrifugal Die Casting and Centrifugal Investment Casting methods with a pouring temperature of 750 ° C and a centrifugal casting motor rotational speed of 700 rpm. Chemical composition testing using Emmision Spectrometry (ASTM E-1251). Density calculation is done by calculating the mass and volume of the castings. Porosity observations were carried out with macro photos using a digital microscope. Testing of the microstructure of the castings using a metallographic microscope (ASTM E3-11). Hardness testing uses the Vickers hardness tester (ASTM E-384). The results of the chemical composition test show that this material contains the composition of (Al) 71.05%, (Si) 13.65%, (Cu) 7.178%, (Ni) 0.9136%, (Fe) 3.4508% and other elements. . others., according to the ASTM standard B-85-03 classified into Aluminum Al-Si (Aluminum - Silicon) A413.0. The density and porosity calculation results in the centrifugal die casting have a density value of 2.7054 gr / cm3, while for the centrifugal investment casting method it is 2.6978 gr / cm3. The results of porosity observations show that the amount of porosity affects the density value. The results of the microstructure observation consisted of α (Al) and β (Si) phases. The beta (Si) phase granules in investment casting centrifuges look bigger and bigger. If on a centrifugal die casting, the beta phase granules look smaller and the amount is less. Large, the number and distribution of beta grains affect the price of hardness. The results of the hardness tester with centrifugal investment casting with a hardness value of 98.50 HVN, centrifugal die casting has a hardness value of 104.75 HVN.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Centrifugal Die Casting, Centrifugal Investment Casting, Aluminium, komposisi kimia, density, porositas, struktur mikro dan Kekerasan
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	IMAM BAGAS PRAKOSO
Date Deposited:	18 Oct 2021 04:10
Last Modified:	18 Oct 2021 04:10
URI:	http://eprints.ums.ac.id/id/eprint/94776

Actions (login required)

View Item