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Jurnal Engine: Energi, Manufaktur, dan Material
Published by Universitas Proklamasi 45 Yogyakarta
ISSN : 25797433     EISSN : 25797433     DOI : http://dx.doi.org/10.30588/jeemm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Engine: Energi, Manufaktur, dan Material is registered with ISSN 2579-7433 (online) on The Indonesian Institute of Sciences (LIPI). This journal is under publishment of the Mechanical Engineering Department, Universitas Proklamasi 45 Yogyakarta. It is a scientific journal focusing on Energy, Manufacturing, Material, Mechanical, and Software Simulation. It provides a publishing platform for scientists and academicians to share, publish, and discuss all aspects of the latest outstanding development in the field of Mechanical Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 5 Documents
 1 
Search results for , issue "Vol 2, No 1 (2018)" : 5 Documents clear
Pengaruh Variasi Kuat Arus Listrik dan Waktu Electroplating Nickel-Chrome terhadap Ketebalan Lapisan pada Permukaan Baja Karbon Rendah Heribertus Sukarjo; R. Soelarso Pani
Jurnal Engine: Energi, Manufaktur, dan Material Vol 2, No 1 (2018)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1470.023 KB) | DOI: 10.30588/jeemm.v2i1.355

Abstract

The development and progress of science and technology in the metal plating industry has become a field of work that is experiencing rapid advances ranging from the type of coating, a coating material that is used, and the results of a layer. The metal plating industry needs not only demand resistance to corrosion, but also the strength of the material, has a beautiful appearance, and has a high economic value. one of them, namely by means of electroplating coating. The purpose of this research is to know the influence of variations in the strength of an electric current and time of electroplating nickel-chrome against the thickness of the surface layer of low carbon steel. The benefits of this research are expected to add to the knowledge about the coating on the process of electroplating nickel-chrome and can apply it. In the activities of this research material used is low carbon steel plates with a size 40 mm x 25 mm x 1 mm with the number 27 specimens are coated using electroplating method with the variation of strength of electric current of 0.5 A, 1 A, 1.5 A and time electroplating 10 minutes, 15 minutes, 20 minutes. Testing done next the thickness of the layer. Results of the study showed that the highest hardness of nickel-chrome electroplating process occurs on a variation of value the highest layer thickness variation in the strength of the current 1.5 A long coating 20 minutes 1.97 µm.
Pengaruh Variasi Temperatur Hardening dan Tempering Paduan AlMgSi-Fe12% Hasil Pengecoran terhadap Kekerasan Sumpena Sumpena; Wardoyo Wardoyo
Jurnal Engine: Energi, Manufaktur, dan Material Vol 2, No 1 (2018)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.961 KB) | DOI: 10.30588/jeemm.v2i1.357

Abstract

The purpose of this research is to know the effect of Heat Treatment Hardening-Tempering Alloy AlMgSi–Fe12% foundry result to hardness and toughness. The test was carried out on raw material and material test specimen after obtaining Hardening heat treatment at 600℃ and quenching with SAE 20 oil medium. While Tempering variation at temperature 200℃, temperature 250℃ and temperature 300℃ with detention time for 15 min at each temperature, each heat treatment. Hardness testing method is done by standard micro Vickers test method with 100 gf loading. The result of raw material testing for hardness value is 60,92 VHN. Test results after heat treatment process at temperature 200℃ cause hardness value increased by 63,50 VHN. At temperature 250℃ cause hardness value decreased to 59,94 VHN. At temperature 300℃ cause hardness value increase to 76,98 VHN
Pembuatan Kekasaran Permukaan Material ST 37 terhadap Kecepatan Pemakanan pada Milling Machine Sugiyanto Sugiyanto; Yogi Prabowo
Jurnal Engine: Energi, Manufaktur, dan Material Vol 2, No 1 (2018)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (773.811 KB) | DOI: 10.30588/jeemm.v2i1.352

Abstract

One of the ideal geometric characteristics of a component is a smooth or rough surface. In practice, it is not possible to obtain a component with a smooth/rough surface. This is due to several factors, such as the human factor (operator) and the factors of the machines used to make it. However, with technological advancements, the growing apparatus capable of forming surface components with a high degree of fineness/roughness, according to the standard measures applicable in metrology, is advanced by geometric measurement experts through research experience. Fineness level/roughness of a surface is very important role in the planning of a machine component, especially concerning the problem of lubrication friction, wear and tear, resistance to fatigue and so on. Therefore, in the planning and manufacture must be considered first about which machine equipment should be used to make it and how much the cost must be incurred. In order for the process of manufacture, there is no significant deviation, then the characteristics of this surface should be understood by the planner even more by the operator. Communication of surface characteristics is usually done in engineering drawings. But to explain perfectly about the characteristics of a surface seems difficult. The research method is started by preparing instrument that is Milling Machine which is used to make surface roughness and Surface Roughness Tester is done 3 times test with variable speed of food which is different equal to 7,3; 13; 24.5 mm/put. With a speed of 102 rpm Rpm, and a depth of 0.4. Next, determine the material roughness level with Surface Roughness Tester. After all, done will get the data test results, followed by analysis and discussion so that will get final conclusion. From the research results obtained the following results: there is a difference in the level of roughness in each material with different feeding speed. The feed rate of 7.3 mm / put yielded 0.64 μ, 13 mm / put roughness generated 1.32 μ, 24.5 mm / put yielded 3.77 μ. The process of measuring the roughness of the material with the speed of feeding is slower, the smoother the surface roughness, the faster the speed of the feeding the more rough. The range of syrup result is also influenced by the speed of the food. The faster the movement of the range range the wider the surface roughness is the opposite.
Pengaruh Variasi Temperatur Quenching pada Aluminium Paduan AlMgSi-Fe12% terhadap Keausan Wardoyo Wardoyo; Sumpena Sumpena
Jurnal Engine: Energi, Manufaktur, dan Material Vol 2, No 1 (2018)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (776.349 KB) | DOI: 10.30588/jeemm.v2i1.528

Abstract

The purpose of this research is to determine the effect of heat treatment hardening of AlMgSi-Fe12% casting aluminium alloys on wear. The tests were carried out on specimens of raw materials and heat-treated specimens with variations of temperature used were 550 oC, 575 oC, 600 oC, and 625 oC, and used 15 minutes of holding time in each heat treatment, then quenching in SAE 20 oil. The method used for wear-tested was high speed ogoshi universal testing machine wear. The result had shown on raw material a specific wear rate was 2.256102E-07 mm2/kg. Test results on the specimens that have received heat treatment hardening temperature 550 oC increased the wear value decreased to 1.7471E-07 mm2/kg. In materials with temperature heat treatment, 575 oC causes wear values were increased when compared with raw material, respectively, 2,83739E-07 mm2/kg. In materials with temperature heat treatment 600 oC also causes wear values were increased when compared with raw material, respectively, 2,65105E-07 mm2/kg. Test results on the test material that has received heat treatment temperature 625 oC increased the wear value decreased to 2.16777E-07 mm2/kg.
Analisis Pengaruh Variasi Bahan Bakar Biomassa terhadap Mampu Nyala dan Kandungan Tar pada Reaktor Gasifikasi Tipe Updraft Abrar Ridwan; Budi Istana
Jurnal Engine: Energi, Manufaktur, dan Material Vol 2, No 1 (2018)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2480.644 KB) | DOI: 10.30588/jeemm.v2i1.353

Abstract

Pada Gasifikasi tipe Updraft bahan bakar dimasukkan dari bagian atas dan udara masuk pada bagian bawah reaktor.Kekurangan dari gasifikasi tipe Updraft adalah gas yang keluar dari reaktor berada pada kondisi temperatur rendah (<500 0C), serta membawa tar yang terkondensasi serta minyak yang berasal dari proses pirolis. Pada penelitian ini akan membandingkan bahan bakar biomassa Tempurung Kelapa dan Pelepah Kelapa Sawit dari segi mampu nyala dan kandungan tar. Bahan bakar tersebut dibakar didalam reaktor sampai Syngas terproduksi, setelah Syngas berproduksi pada reaktor, penarikan tar dapat dilakukan dan penarikan tar dihentikan apabila Syngas pada reaktor telah padam. Dari hasil penelitian, didapat mampu nyala dari biomassa Tempurung kelapa selama 43 menit 14 detik sedangkan biomassa Pelepah kelapa sawit selama 10 menit 26 detik.Berat tar kering hasil proses gasifikasi yang ditimbang menggunakan timbangan digital pada Biomassa Tempurung kelapa adalah 8,99 g, sedangkan pada Biomassa Pelepah kelapa sawit adalah 4,62 g. Banyaknya gas sampel yang disedot pompa vakum pada Biomassa Tempurung kelapa adalah 138,58 liter sedangkan pada Biomassa Pelepah kelapa sawit adalah 133,88 liter. Massa tar pada setiap liter gas sampel Biomassa Tempurung kelapa adalah 0,064 gram/liter sedangkan Biomassa Pelepah kelapa sawit adalah 0,034 gram/liter.

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