Rosario Kreatifika, Bobby and Prof. Dr. Ir. Wahyono Suprapto, MT.Met. and Redi Bintarto, ST., M.Eng.Pract. (2021) Pengaruh Penambahan Copper dengan Proses Rheocasting Pada Aluminium Daur Ulang Terhadap Keausan dan Porositas. Sarjana thesis, Universitas Brawijaya.
Abstract
Penelitian ini bertujuan untuk mengetahui pengaruh penambahan copper dengan proses rheocasting terhadap keausan dan porositas pada hasil pengecoran logam. Metode yang digunakan pada penelitian ini adalah penelitian eksperimental nyata (true experiment) yang meliputi variabel bebas, variabel terikat dan variabel terkontrol. Penelitian dilakukan dengan menghitung nilai hasil laju keausan dan persentase porositas pada produk coran. Pengujian keausan dilakukan menggunakan metode ogoshi dengan standar ASTM G99-17. Nilai persentase porositas dilakukan menggunakan alat uji piknometri dengan standar ASTM E 252-84. Pada pengecoran yang dilakukan menggunakan bahan berupa piston bekas dan penambahan copper yang dilebur pada temperatur 750⁰ C kemudian dilakukan proses rheocasting dan dilanjutkan dengan penuangan pada cetakan permanen. Penambahan copper yang dilakukan pada penelitian ini yaitu sebesar 5%, 5,5%, 6%, 6,5% dan 7%. Hasil yang didapatkan dari pengujian keausan yaitu terjadi penurunan nilai laju keausan seiring dengan penambahan copper yang diberikan. Nilai laju keausan tertinggi yaitu pada spesimen dengan tanpa penambahan copper sebesar 0.00767 mm3/m sedangkan nilai laju keausan terendah yaitu pada spesimen dengan penambahan copper 7% sebesar 0.00597 mm3/m. Hasil dari pengujian porositas yaitu terjadi peningkatan persentase porositas seiring dengan penambahan copper yang diberikan. Nilai persentase porositas tertinggi yaitu pada spesimen dengan penambahan copper 7% sebesar 6.62% sedangkan nilai persentase porositas terendah yaitu pada spesimen dengan tanpa penambahan copper sebesar 2.17%.
English Abstract
This study aims to determine the effect of adding copper to the rheocasting process on wear and porosity in the results of metal casting. The method used in this research is true experimental research which includes independent variables, dependent variables and controlled variables. The research was conducted by calculating the value of the result of the wear rate and the percentage of porosity in the castings product. The wear test was carried out using the Ogoshi method with the ASTM G99-17 standard. The value of the percentage of porosity was carried out using a pycnometric assay with the ASTM E 252-84 standard. The casting is done using materials in the form of used pistons and the addition of copperwhich is melted at a temperature of 750 C, then the rheocasting process is carried out and followed by pouring it into a permanent mold. The addition of copper made in this study was 5%, 5.5%, 6%, 6.5% and 7%. The results obtained from the wear test were a decrease in the value of the wear rate along with the addition of the given copper . The highest value of the wear rate was in the specimen without the addition of copper of 0.0 0767, while the lowest value of the wear rate was in the specimen with the addition of 7% copper of 0.0 0597 . The results of the porosity test were an increase in the percentage of porosity along with the addition of the given copper . The highest percentage value for porosity was in the specimen with the addition of 7% copper of 6.62%, while the lowest percentage value of porosity was in the specimen without the addition of copper of 2.17%.
Other obstract
-
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 052107,, |
| Uncontrolled Keywords: | Aluminium Daur Ulang, Copper, Rheocasting, Keausan, Porositas, Recycled Aluminum, Copper, Rheocasting, Wear, Porosity. |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.8 Machine engineering |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Unnamed user with email gaby |
| Date Deposited: | 23 Oct 2021 08:43 |
| Last Modified: | 24 Feb 2022 06:47 |
| URI: | http://repository.ub.ac.id/id/eprint/185500 |
![[thumbnail of DALAM MASA EMBARGO]](http://repository.ub.ac.id/style/images/fileicons/text.png) |
Text (DALAM MASA EMBARGO)
Bobby Kreatifika.pdf Restricted to Registered users only until 31 December 2023. Download (8MB) | Request a copy |
Actions (login required)
 |
View Item |