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ANALISIS KEAUSAN, KOEFISIEN GESEK DAN KONDUKTIVITAS TERMAL KAMPAS REM TROMOL PADA SEPEDA MOTOR BERBAHAN KOMPOSIT KULIT KOPI DAN MgO Amelia Gustiani; Sailon; Ahmad Zamheri
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12738725

Abstract

Peningkatan limbah kulit kopi akan menimbulkan dampak buruk bagi lingkungan jika tidak dikelola dengan baik. Salah satu cara dalam mengurangi limbah kulit kopi yaitu dengan memanfaatkan limbah kulit kopi sebagai bahan campuran dalam pembuatan kampas rem. Pembuatan kampas rem dilakukan dengan variasi komposisi dengan resin epoxy sebagai variable tetap serta kulit kopi dan MgO sebagai variable bebasnya dimana variasinya 40%:20%, 30%:30%, 20%:40%. Kemudian sampel kampas rem dilakukan pengujian keausan, koefisien gesek dan konduktivitas termal. Dari pengujian tersebut didapatkan hasil terbaik pada keausan kering dan basah pada variasi komposisi kulit kopi 20% dengan nilai 6,615 x 10-4 mm2/kg.m.dan 4,760 x 10-4 mm2/kg.m, pada pengujian koefosoen gesek dan konduktivitas termal mendapatkan nilai terbaik pada komposisi kulit kopi 40% dengan nilai 0,58666667 dan 0,1569145 𝑊/𝑚.ᵒK.
Perancangan Dan Pembuatan Cetakan Ornamen Teralis Dari Aluminium Muhammad Arkan; Sailon; Syamsul Rizal
Jurnal Riset Multidisiplin Edukasi Vol. 2 No. 3 (2025): Jurnal Resit Multidisiplin Edukasi (Edisi Maret 2025)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v2i3.193

Abstract

The metal casting process is the process of pouring molten metal produced from melting into a mold at the melting temperature of the metal. Aluminum casting is generally done by the Sand Casting method, using a sand mold. Aluminum itself is a metal that is often used for various purposes, ranging from household appliances, construction, to automotive components and various other applications. This study focuses on the design and manufacture of aluminum trellis ornament molds, which are intended to improve production efficiency and the quality of the final product. The data processing method used in this study is the FEA (Finite Element Analysis) method. From the results of the analysis carried out through the FEA (Finite Element Analysis) analysis method that has been applied, it can be concluded that the stress distribution in the trellis ornament mold increases significantly with an increase in load from 50kg to 150kg. The results of the study also show that the mold is able to withstand loads of up to 150kg with tension and exceeding that which is within the safe limit. From the results of this study, it is recommended to make recommendations for improvements including the use of alternative materials with higher strength, redesigning the geometry of the mold to reduce stress concentration, and optimizing the process. Therefore, the results of this research are expected to be used in the future as a reference or literature to increase insight into the development of stronger and more efficient aluminum trellis ornament molds.
Pengaruh Putaran dan Waktu Terhadap Ketahanan Aus pada Aluminium : pengaruh ketahanan aus pada aluminium Septrianti, Nabila Adisty; Sailon; Mardiana; Rizal, Syamsul
MACHINERY Jurnal Teknologi Terapan Vol. 6 No. 3 (2025): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to examine the effect of rotation and time variations on the wear resistance of aluminum. Aluminum is a material that is often used in various industries because of its lightness and corrosion resistance. However, one of the weaknesses of aluminum is its relatively low resistance to wear. In this research, aluminum samples were tested using a Tribometer machine with rotation variations of 500, 700, and 900 RPM while the test time variations were 10, 20 and 30 minutes. From this test, the rotation results with the highest aluminum wear value were obtained with RPM 900 with a wear value of 0.070 g and the lowest wear value was obtained with RPM 500 with a wear value of 0.014 g. And the lowest wear rate results for aluminum were obtained in 10 minutes with an average wear value of 0.02111 g and the highest wear value was obtained in 30 minutes with an average wear value of 0.61333 g.