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MACHINERY: Jurnal Teknologi Terapan
Published by Politeknik Negeri Sriwijaya
ISSN : 27233359     EISSN : 2776673X     DOI : https://doi.org/10.5281/zenodo.
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
MACHINERY Jurnal Teknologi Terapan was published by Mechanical Engineering Department, Politeknik Negeri Sriwijaya to disseminate in the form of technical and vocational research results of undergraduate (Sarjana Terapan) students of Mechanical Engineering in the fields of Machinery, Manufacturing, Metallurgy Sciences and Engineering, Design Engineering, Heavy Machine to academics, practitioners and students as well as interested parties. MACHINERY accepts article submissions written in Indonesian and welcoming in English. Determination of articles published in Machinery Jurnal Teknologi Terapan is through a review process by best partner of MACHINERY by considering, among others: fulfillment of the standard requirements of journal publications, research methods used, significance, and contribution to the results of research on technical and vocational in Mechanical engineering field study.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 63 Documents
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ANALISA PENGARUH WAKTU PENAHANAN PADA PROSES PACK CARBURIZING TERHADAP KEKERASAN BAJA KARBON RENDAH ST 37 Apriatun Apriatun; Taufikurahman Taufikurahman; Ella Sundari
MACHINERY: Jurnal Teknologi Terapan Vol. 2 No. 1 (2021): Machinery:02012021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.965 KB) | DOI: 10.5281/zenodo.4748538

Abstract

This study aims to analyze the hardness of low carbon steel ST 37 which received pack carburizing treatment with coconut shell charcoal. In this study, the specimens were divided into ten parts, which is five specimens carried out by pack carburizing, and other five parts by pack carburing and hardening and quenching followed by with oil. The carbon medium was coconut shell charcoal with a percentage of 10.60% volatile, 76.32% carbon, 13.08% ash and CaCO3 as a catalyst. The pack carburizing process is carried out at temperature of 9500C with i holding time of 2 hours, 4 hours, 6 hours, 8 hours, and 10 hours, as the oil quenching media hardness testing is carried out to determine how hard the specimen surface is. And the remit are this research was conducted at the material testing laboratory, Department of Mechanical Engineering, Sriwijaya State Polytechnic.
PERANCANGAN DAN PENGEMBANGAN ALAT UJI TARIK MINI BERBASIS ARDUINO UNTUK SPESIMEN NON-FERRO Julham Comaro; Irawan Malik; Karmin .
MACHINERY: Jurnal Teknologi Terapan Vol. 1 No. 1 (2020): Machinery:01012020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.497 KB) | DOI: 10.5281/zenodo.4540926

Abstract

Tensile test mechine is one of the most important research and educational means in supporting and supporting the learning process of teaching in the laboratory used to know the mechanical properties of materials. Currently commercial tensile testing tools are very accurately used in measuring mechanical properties, but cost and size make it impractical for classroom direct learning. This research and development experimented to design and create a small capacity tensile testing tool capable of producing tools that are more efficient, economical, and have high anemicity by utilizing the available hardware and software while keeping an eye on and maintaining the quality of the production results. This Tensile test tool uses nema 17 stepper motor as drive motor, to transmit power using 2 ballscrew, belt, and pulley. Load cell and digimatic sensors are used for reading the magnitude and extension of specimens controlled by the Arduino microcontroller. Keywords: Tensile Test, Ioad Cell, Voltage, StrainBlank
PENGARUH QUENCHING TERHADAP KEKERASAN MATERIAL BAJA JIS SUP 9 Gito Purnomo; Fenoria Putri; Sairul Effendi
MACHINERY: Jurnal Teknologi Terapan Vol. 1 No. 1 (2020): Machinery:01012020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.411 KB) | DOI: 10.5281/zenodo.4540929

Abstract

JIS SUP 9 Steel is a medium carbon steel with chemical content of 0,544% C, 0,238% Si, 0,820% Mn, 0,0146% P, 0,0030% S, 0,754% Cr, 0,0102% Mo, 0,00665% Ni, 0,0390% Al, 0,0095% Co, 0,0156% Cu, 0,0142% Ti, 0,0011% Sn, 0,0022% As, 0,0039% Zr, 0,0039% Zr, 0,0036% Ce, 0.0022% Se, 0,0047% Te, 0,0402% Ta, 0.00021% B, 0,0012% Zn, 0,00053% La, 97,4% Fe. The carbon content allows the steel to be hardened by a heat treatment process, hardening and cooling media. The temperature variations used were 750 ℃, 800℃,900℃ with a holding time of 30 minutes and cooled using salt water, oil and vegetable oil. This study aims to determine the effect of hardening and quenching processes on the hardness of JIS SUP 9 steel. The test results data were analyzed using ANOVA with full factorial level design, main effect model design, and 3 replications assisted by Design-Expert software. From the hardness test, the maximum hardness value of 59.2 HRC was obtained from the hardening process with oil cooling media at a temperature of 800 ℃, while the minimum hardness value obtained from the brine cooling medium was 16.5 HRC at a temperature of 750 ℃. The results of the analysis revealed that the main factor that had the most influence on increasing the hardness of the test specimens was the brine quenching media factor with a contribution percentage of 98.93%. Meanwhile, the increasing factor of hardness in oil quenching media with a contribution percentage of 98.02% and quenching vegetable oil with a percentage contribution of 98.80%. Keywords: JIS SUP 9 Steel, Hardening, Quenching, ANOVA, Full Factorial
PENINGKATAN KEKERASAN PISAU SADAP KARET PRODUK PANDAI BESI DENGAN PROSES HARDENING DAN QUENCHING ( VARIASI TEMPERATUR DAN MEDIA PENDINGIN ) Dioni Yoga Pratama; Firdaus .; Indra Gunawan
MACHINERY: Jurnal Teknologi Terapan Vol. 1 No. 1 (2020): Machinery:01012020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.839 KB) | DOI: 10.5281/zenodo.4540931

Abstract

Often the rubber tapping knives produced by blacksmiths have cracks and chipped and even broken on their blades, so rubber farmers must often replace them with new knives. Thus the product cannot be used for a long time and has reduced economic value. The cause of this rubber tapping knives made by blacksmiths is easily damaged because the gilding method on the product is not done properly. So the product was produced have a relatively low level of hardness. This study aims to determine the effect of the hardening and quenching process on the hardness of rubber tapping knives made by blacksmiths. Data of test were analyzed using ANOVA with full factorial level design , main effect model design, and 3 replications assisted with Design-Expert software. At a temperature of 800℃, the maximum hardness value of 62,8 HRC obtained from the quenching results using a water cooling media, while the minimum hardness value of 62,2 HRC was obtained from oil cooling media.  At a temperature of 850℃ the maximum hardness value of 60,4 HRC obtained from the quenching results using water cooling media, and the minimum hardness value obtained from the oil cooling media is 59,1 HRC.Keywords: Spring leaf, Hardening , Quenching ; ANOVA; Full Factorial;Rubber tapping knives
INVESTIGASI PROSES PEMBUATAN DAN SIFAT MEKANIK PISAU PANDAI BESI DI DESA TANJUNG PINANG KABUPATEN OGAN ILIR Ahmad Mursal; Ella Sundari; Taufikurahman .
MACHINERY: Jurnal Teknologi Terapan Vol. 2 No. 1 (2021): Machinery:02012021
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.
PENGARUH WAKTU DAN SUHU MENGGUNAKAN PEMANAS INDUKSI TERHADAP KEKERASAN MATERIAL PAHAT UKIR KAYU Romli .; Reac Pratama; Eka Satria M
MACHINERY: Jurnal Teknologi Terapan Vol. 2 No. 3 (2021): Machinery:02032021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (322.937 KB) | DOI: 10.5281/zenodo.6383869

Abstract

Tujuan penelitian ini adalah untuk mengetahui adakah peningkatan nilai kekerasan baja JIS SUP 9 sebagai material dasar pembuatan pahat ukir kayu yang di beri perlakuan lanjutan berupa perlakuan panas (Hardening) dengan variasi suhu dan variasi waktu penahanan untuk mengetahui apakah ada peningkatan kekeraan terhadap material baja JIS SUP 9, serta  menggunakan induction heater 1800 W dan  munggunakan Power Supply 48V 40A sebagai media pemanas baja JIS SUP 9 dan spesimen pahat ukir kayu , Penelitian diharapkan dapat mengetahui pengaruh kekerasan terhadap sifat mekanis dari baja JIS SUP 9 sebagai material dasar pembuatan dari pahat ukir kayu yang di beri perlakuan panas menggunakan alat induction heater. Tahapan penelitian dimulai dengan mencari literatur dan survey lapangan untuk dilanjutkan dengan mempersiapkan spesimen baja JIS SUP 9 dan lalu proses pembuatan spesimen dari baja JIS SUP 9 dengan proses gergaji dan gerinda. Selanjutnya dilakukan proses hardening dengan menggunakan alat Induction Heater 1800W. Selanjutnya proses perlakuan panas menggunakan variable 3 variasi suhu hardening yakni 800°C, 850°C, 900°C serta 3 variasi waktu penahanan yakni 30 detik, 45 detik, dan 60 detik. Pengujian yang dilakukan guna mendapatkan hasil kekerasan dengan menggunakan uji kekerasan Rockwell. Analisis data hasil uji menggunakan ANOVA. Dari hasil penelitian ini diperoleh hasil bahwa kekerasan terbesar terdapat spesimen pada variasi suhu 800°C dengan variasi waktu penahanan selama 30 detik dengan nilai kekerasan 64 HRC.
RANCANG BANGUN MESIN PENYULING ASAP CAIR DARI BATOK KELAPA DENGAN APLIKASI TEKNOLOGI REFRIJERASI BERBASIS SEMI-OTOMASI (MIKRO-KONTROLLER) Rachmat Dwi Sampurno; Ozkar F. Homzah; Iskandar Ismail; Wahyu Adjie Pangestu; Kodri Hudiya Utama
MACHINERY: Jurnal Teknologi Terapan Vol. 2 No. 1 (2021): Machinery:02012021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (26.112 KB) | DOI: 10.5281/zenodo.4662523

Abstract

 Alat penyulingan asap cair berbasis microkontroller bertujuan untuk membantu para petani yang memproduksi asap cair dimana pada asap cair digunakan untuk pembekuan getah karet agar dapat meningkatkan hasil pembuatan asap cair dengan menggunakan aplikasi teknologi refrijerasi yang basis pengontrolannya menggunakan hardware arduino yang di program dengan menggunakan aplikasi matlab sehingga berdampak positif dalam proses pemasaran hasil penjualan asap cari yang sebelumnya menggunakan air yang bersuhu ± 29°C. Proses perancangan alat memanfaat bantuan perangkat lunak CAD sedangkan untuk pembuatan menggunakan mesin mesin bor, mesin gerinda tangan, mesin las listrik dan alat perkakas tangan. Setelah dilakukan pembuatan, prototipe alat akan dilakukan uji coba pada laboratorium untuk melihat fungsi kerja alat.
ANALISIS KEKUATAN PAPAN PARTIKEL DARI SERAT AMPAS TEBU DENGAN PENAMBAHAN RESIN POLYESTER UNTUK PEMBUATAN PAPAN SKATEBOARD Dody Ikhsan; M. Rasid; Indra HB
MACHINERY: Jurnal Teknologi Terapan Vol. 2 No. 1 (2021): Machinery:02012021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.031 KB) | DOI: 10.5281/zenodo.4748679

Abstract

Composites are materials that are formed when two or more different components are combined (Kroschwitz, 1987). K. Van Rijswijk et al in their book (Natural Fiber Composites, 2001) describes a composite is a hybrid material made of fiber-reinforced polymer resin, combining mechanical and physical properties. Research on the strength analysis of particle board by utilizing bagasse so that it has a better economic value. Variations in the ratio of fiber fraction and polyester resin were 2:40, 5:40 and 8:40 with each and mixed based on the ratio of fiber weight fraction and resin weight. Based on the analysis using ANOVA, it was found that the best composition of the final composite product was in the composition of 8 grams of bagasse fiber and 40 ml of polyester resin. The composition has a bending strength of 9, 19 N / mm2. Based on the analysis using ANOVA, it was found that the optimization parameters were 0.04 millimeter layer thickness and 16 seconds lighting time, the optimal results were in the dimensions of 40.01 millimeters in diameter and 3.20 millimeters of thickness.
PENGARUH STRUKTUR PENYUSUNAN FILLER/SERAT KULIT JAGUNG PADA KOMPOSIT RESIN POLYESTER TERHADAP UJI BENDING SEBAGAI PENGGANTI PLAFON Muhammad Dimas Arya Nugraha; M. Rasid; Indra HB
MACHINERY: Jurnal Teknologi Terapan Vol. 2 No. 2 (2021): Machinery:02022021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.567 KB) | DOI: 10.5281/zenodo.5812338

Abstract

Komposit adalah suatu material yang terbentuk dari kombinasi dua atau lebih material pembentuknya melalui campuran yang tidak homogen, dimana sifat mekanik dari masing-masing material pembentuknya berbeda. Dari campuran tersebut akan dihasilkan material komposit yang mempunyai sifat mekanik dan karakteristik yang berbeda dari material pembentuknya. ( Endi, 2018).Penelitian tentang pengaruh penyusunan serat kulit jagung pada komposit resin polyester terhadap pengujian bending sebagai pengganti plafon dengan maksud memanfaatkan limbah kulit jagung sehingga memiliki nilai ekonomis. Variasi perbandingan struktur penyusunan filler/serat yaitu, Serat lurus, serat menyilang,dan serat anyaman.Berdasarkan hasil perhitungan ANOVA didapatkan hasil bahwa serat yang memiliki kekuatan terbaik adalah serat dengan penyusunan anyaman dengan nilai kekuatan bending sebesar 1,96 N/mm2, hal ini di karenakan penyusunan yang baik antar susunanya sehingga jadi lebih kuat. Kata kunci: Resin Polyester, Kulit Jagung, Komposit ; ANOVA
PENGARUH VARIASI MEDIA PENDINGIN OLI, DROMUS, MINYAK SAYUR TERHADAP KEKASARAN PERMUKAAN BAJA SS-400 PADA PROSES MESIN BUBUT KONVENSIONAL (LATHE MACHINE) Antoni Saputra; Firdaus .; Indra Gunawan
MACHINERY: Jurnal Teknologi Terapan Vol. 2 No. 1 (2021): Machinery:02012021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.927 KB) | DOI: 10.5281/zenodo.4748670

Abstract

The development of increasingly sophisticated and modern technology, especially in the industrial field, both machine tools, power plants and metallurgy play an important role in the industrial world. As is the case for machine tools used in the machining process, including lathes, milling machines, drilling machines, scrap machines, grinding, and others. The lathe process is the process of forming a material by removing some of the material in the form of a snarl due to the relative motion of the tool to the workpiece, where the workpiece is rotated on the spindle and the chisel is delivered to the workpiece in a translational manner. The quality of the turning results, especially on the surface, is strongly influenced by three parameters, namely spindle speed (Speed), feed motion (feed), and depth of cut (Depth of Cut). As for other factors that support the quality of the turning results, including the workpiece, the type of chisel used and the cooling media actually have a significant influence, the cooling medium used is Oil, Dromus and Vegetable Oil, the chisel used by HSS and the depth of cutting (F) 0.1 mm and 0.2 mm. The percentage of the effect of variations in cooling media on the surface roughness of SS-400 steel in the turning process is as follows: Oil = 75% Dromus = 64% Vegetable Oil = 70% It can be seen from the above percentage that for now the cooling medium Oil is the most influential cooling medium. And better than Dromus and Vegetable Oil cooling media against roughness in the turning process.

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