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All Journal AUSTENIT MACHINERY: Jurnal Teknologi Terapan
., Taufikurahman
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Automotive Engineering Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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INVESTIGASI PROSES PEMBUATAN DAN SIFAT MEKANIK PISAU PANDAI BESI DI DESA TANJUNG PINANG KABUPATEN OGAN ILIR Mursal, Ahmad; Sundari, Ella; ., Taufikurahman
MACHINERY Jurnal Teknologi Terapan Vol. 2 No. 1 (2021): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.334 KB) | DOI: 10.5281/zenodo.4748626

Abstract

Semakin meningkatnya perkembangan hidup manusia maka jaman pun ikut berkembang dengan pesat. Di kabupaten Ogan Ilir tepatnya di desa Tanjung Pinang proses pembuatan pisau atau kerajinan pandai besi lainnya dilakukan dengan cara yang masih tradisional dan hanya dapat menggantungkan kekuatan suatu benda dari bahan dasar yang digunakan, Tujuan utama dari penelitian ini untuk mengetahui proses pembuatan, sifat mekanik dan kekerasan material dari pisau pandai besi ciri khas desa tanjung pinang kabupaten ogan ilir. Pada penelitian ini memilih pisau cap garpu made in solngen germany sebagai perbandingan sifat mekanik dan kekerasan material dari pisau pandai besi. Berdasarkan pada penelitian ini menunjukan bahwa nilai kekerasan vickers dari jenis pesimen Pisau Pandai Besi memliki Vickers Hardness Number (VHN) 392,51 kg/mm² pada titik A, 394,46 kg/mm² pada titik B, 391,69 kg/mm² pada titik C dengan Vickers Hardness Numbers Rata - rata (VHNr) sebesar 392,88 kg/mm, Spesimen Pisau Cap Garpu memiliki Vickers Hardness Number (VHN) 373,28 kg/mm² pada titik A, 375,81 kg/mm² pada titik B, 371,54 kg/mm² dengan Vickers Hardness Number Rata - rata (VHNr) sebesar 373,54 kg/mm². Berdasarkan hasil penelitian ini dapat disimpulkan bahwa Tingkat kekerasan Pisau Pandai Besi ciri khas Desa Tanjung Pinang Kabupaten Ogan Ilir lebih besar daripada tingkat kekerasan yang dimiliki oleh Pisau Cap Garpu.
STUDI EKSPERIMENTAL: ANALISA KEGAGALAN RODA GIGI PADA GEAR BOX MESIN SCREW PRESS KELAPA SAWIT Krisna, Pratama Pela; ., Taufikurahman; Sundari, Ella
AUSTENIT Vol. 12 No. 2 (2020): AUSTENIT: Oktober 2020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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

Abstract

The gear is a connecting component or power transmission of a machining process, if there is damage to the gears of an engine then this results in the inability to work on a machine. In this study, the damage to the gear of the screw press was broken and split so that several tests were used, namely the hardness test, the metallographic test and the composition test. The results showed that the damage occurred due to the lack of hardness in the gear where the hardness value of the screw press gear was 144.457 kg / mm² while the minimum hardness based on ASTM A291 was around 170-230 kg / mm². In the metallographic test, it can also be seen that there are cracks in the material structure of the screw press gear which causes the teeth to break and split. The composition test was carried out and it was found that the gear material contained a high enough carbon element, namely 5.05%, with this carbon value it could be concluded that the type of gear material for the screw press machine was cast iron with the addition of several alloys. Keywords:   Gears, Screw Press machine, Gear Box, Brinnel-Test, Metallography
Co-Authors Krisna, Pratama Pela Mursal, Ahmad Sundari, Ella