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INDONESIA
Jurnal Inovasi Mesin
ISSN : -     EISSN : 27467694     DOI : https://doi.org/10.15294/jim
Core Subject : Engineering,
Jurnal Inovasi Mesin is a scientific journal published by Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang. This journal aims to accommodate a description of the development of science and technology and articles of research results in the field of Mechanical Engineering.
Articles 5 Documents
Search results for , issue "Vol 3 No 1 (2021): APRIL 2021" : 5 Documents clear
Analisis Variasi Kecepatan Potong Dan Kedalaman Potong Terhadap Nilai Kekasaran Permukaan Dan Getaran Pada Pembubutan Silindris Material Baja ST 60
Jurnal Inovasi Mesin Vol 3 No 1 (2021): APRIL 2021
Publisher : Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v3i1.46597

Abstract

Conventional lathes are still often used, but the problem is that conventional lathes are difficult to get really good product quality (geometric dimensions, surface roughness and appropriate reflective geometries) due to human factors, the cutting parameters used and the condition of the machine itself. The purpose of this study was to determine how much the effect of cutting speed and depth of cut on vibration and surface roughness in the cylindrical turning process. This research is a quantitative research using experimental methods. For data collection using the technique of observation and documentation methods. Date analysis techniques using regression analysis techniques. The research results that have been obtained, it is known that the highest engine vibration value is 5.4 m/s2 and the lowest is 1.8 m/s2. The highest vibration value of the chisel is 5 m s2 and the lowest is 1 m/s2. And for the highest surface roughness is 5.0 µm and the lowest is 2.33 µm. And it can be concluded that the higher the cutting speed and the depth of cut, the machine vibration, chisel vibration and roughness will be higher.
Pengaruh Campuran Air-Nanopartikel CuO sebagai Coolant dan Laju Aliran terhadap Parameter Perpindahan Kalor pada Radiator
Jurnal Inovasi Mesin Vol 3 No 1 (2021): APRIL 2021
Publisher : Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v3i1.48802

Abstract

The aim of this study was to determine the effect of volume fraction and fluid flow ratetowards the heat transfer parameters in the Honda Vario radiator cooling system. This study was conducted by using a test equipment which a radiator used as main cooling system. The inlet fluid temperature is constantly kept in accordance with the engine working temperature. Temperature measurements were carried out on variations in flowrate and fluid concentration using a digital thermometer.Variations used in fluid volume fraction are 0%, 0.1%, 0.3%, and 0.5%. While, the variation of the fluid is 12 lpm, 18 lpm, and 24 lpmmeasuredby a flowmeter. The highest change in the value of the heat transfer coefficient was found in the large volume fraction and flow rate. However, at higher volume fractions, the Reynlods number will tend to decrease. To get a better rate of heat transfer and cooling, a higher volume fraction and fluid flow is used. As for the flow variation, it usually adjusts to the vehicle user. The use of nanofluids will helpto reduce the heat in the radiator cooling system.
PENGARUH CAMPURAN BAHAN BAKAR SOLAR DENGAN BIODIESEL MINYAK LEMAK SAPI (BEEF TALLOW) TERHADAP KONSUMSI BAHAN BAKAR PADA MESIN DIESEL
Jurnal Inovasi Mesin Vol 3 No 1 (2021): APRIL 2021
Publisher : Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v3i1.48937

Abstract

This study aims to determine the effect of biodiesel concentration added to each variation of fuel mixture to fuel consumption in diesel motor. Variations of fuel mix between diesel and biodiesel are used B0, B5, B10, B15 and B20 While engine variations are used for 2000, 3000, 4000 rpm.The method used in this research is experiment. The production process of biodiesellemak cattle using transesterification method. Testing fuel consumption using buret. Then concludes the results of research in the form of tables and graphic. The B20 mixture is the most efficient mixture. Five variations of B20 rotation produce the lowest average fuel consumption average of 1,410 kg / hour, while for B0 the highest average fuel consumption is 1,860 kg / hour. The resulting power yield of B20 mixture produces an average power of 47,20 kW compared to pure diesel generating power of 49,86 kW. Larger than the B20 mixture, but the torsion yields the largest average on the B5 mixture of 78,7 Nm.
Kekuatan Tarik Material Fiber Carbon Dan Fiber Glass Berdasarkan Orientasi Serat Berbasis Matriks epoxy
Jurnal Inovasi Mesin Vol 3 No 1 (2021): APRIL 2021
Publisher : Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v3i1.48939

Abstract

The use of metal materials on the variation of components was reduced because of its heavy in wieght, complex manufacture process and corrosive. Therefore composite materials with different variations was needed to be developed. The material was used in this research were Fiber glass, Fiber carbon, and Epoxy with the varying orientation angle of 0°,30°, 45°, 60°, and 90°. The composites was made by vole fraction of 30%: 70% (Matrix: reinforced). ASTM D-3039 was used to determined the tensile strength. Results shows that the angle orientation of the fiber influence in tensile strength, which the greater of fiber angle orientation made the tensile strength greater too,500 N/mm2and 620 N/mm2. The comparison of fibreglass composite with the fiber carbon composite in angle orientation of 0°, 45°, and 90° showed that the fiber carbon is greater than the fiber glass, while in the orientation of 30°and 60° fiber glass Superior. The combination of the best tensile strength based on fiber orientation was obtained by the fiber carbon with the angle of 90° and in fiber glass in 60° fiber orientation.
Pengaruh Warna Pelapis dan Ketebalan Lapisan Pada Proses Zinc Electroplating Terhadap Laju Korosi Baja AISI 1015
Jurnal Inovasi Mesin Vol 3 No 1 (2021): APRIL 2021
Publisher : Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v3i1.48940

Abstract

To improve the material's corrosion resistance, metal plating can be done. The main purpose of electroplating is to increase corrosion resistance and beautify the appearance with a variety of colors. The purpose of this study was to examine the effect of coating color variations on the corrosion rate of low carbon steel. The research method used was experimental. Using zinc electroplating and trivalent passivation treatment. Corrosion rate testing using the method weight loss, immersion period of 7 days with 3.5% NaCl corrosive medium. Layer thickness testing was carried out using the micro photo method. The research were obtained by directly observing the experimental results which were presented in tables and graphs. The results showed that there was an effect of coating color variations on the corrosion rate of AISI 1015 steel in the form of a decrease in the corrosion rate of each coating color variation. The lowest corrosion rate is in the black coating 0.016840030 mmpy. The layer thickness also affects the corrosion rate of AISI 1015 Steel. The higher the coating thickness in the process zinc electroplating , the lower the corrosion rate of AISI 1015 Steel.

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