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Turbo : Jurnal Program Studi Teknik Mesin
Published by Universitas Muhammadiyah Metro
ISSN : 23016663     EISSN : 2477250X     DOI : https://doi.org/10.24127
Core Subject : Engineering,
Mechanical Engineering
TURBO ISSN (print version) 2301-6663 & ISSN (online version) 2477-250X is a peer-reviewed journal that publishes scientific articles from the disciplines of mechanical engineering, which includes the field of study (peer) material, production and manufacturing, construction and energy conversion. Articles published in the journal Mechanical include results of original scientific research (original), and a scientific review article (review). Mechanical journal published by the Department of Mechanical Engineering, Faculty of Engineering, University Muhammadiyah of Metro for publishing two periods a year, in June and December with the number of articles 14-20 per year . Editors receive manuscripts in mechanical engineering from various academics, researchers and industry practitioners.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 509 Documents
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Pengaruh pH larutan elektrolit terhadap kuat lekat dan ketebalan hasil elektroplating bahan baja karbon rendah Asroni, Asroni; Handono, Sulis Dri; Wahyudi, Tri Cahyo; Saputra, Yogi
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 1 (2021): Jurnal TURBO Juni 2021
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i1.1593

Abstract

Electroplating is a process of coating a solid material with a metal layer using an electric current through an electrolyte solution. The purpose of this study was to obtain the best solution pH for the thickness and adhesive strength results of electroplating, as well as the method used in various electrolyte solutions, namely pH 1.7, pH 3, pH 5, pH 7 and pH 9. The anode was used Nickel while the cathode uses ST41 Steel with dimensions of 70 mm x 50 mm x 10 mm. The distance between the anode and cathode is 10 cm and a DC current voltage of 5.5 volts with an immersion time of 20 minutes. The best coating were obtained at a variation of pH 1.7 with a result of 0.0322 mm and adhesive strength at a variation of pH 5 with a result of 26.53 MPa and pH 7 of 24.25 MPa.Keywords: Electroplating, pH variation, adhesion strength, thickness, Steel ST41, Nickel.
Pengaruh prosentase etanol pada oli terhadap lidah api dan temperatur pada burner oli bekas Mochammad Rizky Kurniawan; Djoko Wahyudi; Alief Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1690

Abstract

The large amount of used oil waste in Indonesia cannot be separated from the large number of industries that exist today. Apart from the large number of industries, used oil also comes from the remnants of the use of motor vehicles. types of Hazardous and Toxic Waste (B3) according to Government Regulation no. 8 of 1999. Used oil burners can be used as alternative fuels, of course this can solve the problems of Micro, Small and Medium Enterprises (MSMEs). The research method was carried out to determine the effect of a mixture of ethanol and oil on the length of the flame and temperature, then the researcher tried to determine the effect of the mixing time of ethanol and oil on the length of the flame and temperature. The research was carried out in the Mechanical Engineering laboratory of Panca Marga University in a closed state so that the flames did not change, taking pictures of the length of the flames by recording the fire propagation for 1 minute, then cutting each frame with the help of the imagej application. The results obtained from the study are the addition of the percentage of ethanol affects the length of the flame and the temperature produced by the burner.
Pengaruh penambahan Silikon pada remelting piston motor bekas menggunakan tungku induksi terhadap kekuatan tarik dan kekerasan Eko Nugroho; Eko Budiyanto; Aji Dawam Firdaus
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1823

Abstract

Aluminum is one of the most widely used non-ferrous metals in industry and engineering because of its light weight and resistance to corrosion. The purpose of this study is to change the waste of used motor pistons using an induction furnace by recycling or remelting the material and adding a mixture of silicon with variations of 8%, 10% and 12% to improve its mechanical properties. In this research, I used the main furnace for the smelting. The results of this study in the tensile test showed that the strength and wear strength increased with the addition of silicon elements but became brittle and stiff this happened because the value of the elastic modulus decreased with the addition of silkon elements, namely at 12% at 1.06 N/mm² and at a variation of 8 % of 1.13 N/mm². In the hardness test, it was found that the addition of silicon to aluminum with variations of 8%, 10% and 12% increased the hardness of the material.
The influence of friction stir welding tool shape on quality of AZ31 Magnesium welding product Irza Sukmana; Fauzi Ibrahim; Ahmad Yudi Eka Risano
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1728

Abstract

Magnesium is one type of material that can be used as a base metal in welding. Magnesium has superior properties, including low density, good ductility, medium strength and excellent corrosion resistance. Because of its properties, the metal is widely used, ranging from household goods to aircraft components. These base metals are categorised as mild when viewed from the specific gravity of magnesium (1.74 g/cm3 and 1.83 g/cm3). Welding is the process of merging two or more base metals which are merged at the contact surface with or without additives or fillers. Welding is divided into two main categories, Liquid and Solid-State Welding. Friction Stir Welding (FSW) is an example of Solid-State Welding (Non-Fusion Welding). FSW is a friction welding process that twists the tool by utilising heat energy and pressing without additives or fillers until the base metal is in a phase change.  The welding process in this study used the cone and spiral shape with a tool rotation at 2000 rpm and a welding speed of 16 mm/min. The tests carried out are tensile and hardness testing. This study found that the tool shape, tool rotation, and welding speed significantly affect the mechanical properties of the welded AZ31 magnesium. The spiral shape will make the welding area wider. Although the cone shape will have a small area, the weld will look perfect with good tensile strength, while the hardness values for the two tool shapes are almost the same, but the cone shape is better.
Analisa pengaruh temperatur pemanasan pada proses normalizing dan hardening quenching terhadap kekuatan tarik dan struktur mikro baut ST-60 Sutrisno, Sutrisno; Azmal, Azmal; Handoko, Dwi
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1515

Abstract

This study aims to obtain information about the price of tensile, hardening, and changes in microstructure as well as changes in material properties at hot temperature variations 800 OC to 900 OC. The method used in this study is an experimental method, where the material used is ST-60 steel bolts, with a tensile test sample form referring to the ASTM D 638-03 standard, while for testing hardness and chemical composition based on machine standards, namely Ø16 mm x 20 mm. In this study, 5 samples were made at each temperature of 0 0C, 800 0C, 850 0C, 900 0C, 950 0C and 1000 0C with the type of heat treatment in the normalizing process and the hardening quenching process. This research was conducted in the Laboratorium Pengujian Bahan, Jurusan Teknik Mesin, Politeknik Negeri Pontianak. The test results on the normalizing process for tensile strength decreased by an average of 230.78 N/mm2 or 50%, Vickers hardness decreased by an average of 33.99 HV or 31% and the carbon content decreased by an average of 0.19 or 48% of the normalizing process is not done. Whereas in the hardening quenching process, the average tensile strength increased by 93.22 N/mm2 or 20 %, the Vickers hardness on average increased by 19.29 HV or 18 % and the average carbon content increased by 0.06 or up 17 % of the hardening quenching process was not done. So to overcome the decrease in mechanical strength and changes in the microstructure of the ST-60 bolt due to hot temperatures, the hardening quenching process can be applied, namely by polishing with used oil after the bolts work at hot temperatures.
Pengaruh temperatur elektrolit terhadap ketebalan dan kuat lekat baja karbon rendah pada proses elektroplating Asroni Asroni; Eko Budiyanto; Tri Cahyo Wahyudi; I Wayan Suarca
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1755

Abstract

The development of industry as well as science and technology requires humans to fulfill various kinds of needs in their lives. One of them is the need for metal-based goods. Many objects around us, both in the automotive industry and in the steel-based industry for household purposes, etc., are given a metallic finish to protect and beautify the metal. The metal coating technique that is often used in the metal industry is electroplating. Electroplating comes from two words, namely electro and plating or electricity and coating that uses a deposition system. The purpose of this study was to determine the effect of electrolyte temperature on the thickness and adhesive strength of low carbon steel in the electroplating process. The cathode used is low carbon steel with dimensions of 70 mm x 25 mm x 20 mm, while the anode used is Nickel (Ni) and the bath for plating is 60 cm long, 30 cm depth, and 30 cm wide. Two anodes on the right and left side of the anode with an anode-cathode distance of 10 cm, and using an electric voltage of 7.5 Volts, and using variations in electrolyte temperature of 450C, 500C, 550C, 600C, 650C and room temperature. From the results of the study found the optimal thickness value with 0.021 mm at a temperature of 600C. Meanwhile, the optimal value for coating adhesive strength from electroplating research is 60℃ with a very high adhesive strength value of 26.53 MPa.
Uji karakteristik nyala api pembakaran premix bioetanol dari ampas tebu Saeful Bakhri; Djoko Wahyudi; Alieff Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1694

Abstract

The fuel demand is very important in this day. The higher fuel consumption was impact depletion of existing reserves of oil resources. Bioethanol is one of the energy conversions from biomass containing sugar, starch and cellulose become fuel. Bagasse is a solid waste containing a lignocellulotic substrate which has the potential for bioethanol production. The purpose of this experiment was to determine the flame characteristics of the composition of the addition bioethanol to Pertamax as a mixture, with a variety of mixtures (B0, B5, B10 and B15). The test was carried out using the premix combustion method. The data from the result experiment were analyzed using descriptive methods. The results of the experiment showed that the addition of bioethanol can affect the flame characteristics. The shape of the flame changes from a conical shape to an enlarged cone angle along with the addition of a percentage. The flame height has decreased, the highest flame is at B0 with value of 12.79 mm, the lowest flame height is at B15 with value 10.27 mm. Combustion velocity has increased, the highest velocity is at B15 with value of 32.753 cm/s and the lowest velocity is at B0 with value of 22.253 cm/s.
Analisa parameter pada pemotongan plate menggunakan CNC fiber laser cutting terhadap kekasaran permukaan Muhammad Arief Hidayat; Akhmad Farid; Purbo Suwandono
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1737

Abstract

With the advancement of advanced equipment, Computer Numerical Control (CNC) laser cutting as a manufacturing tool in plate cutting, where industri player make to get maximum result. Laser cutting Cutting is one of the tools used by the industrial world to maximize cutting results. The purpose of this research To find out the results of the difference using the parameters of air pressure and cutting speed on a Q235B carbon steel plate with a thickness of 3 mm using CNC fiber laser cutting on the surface roughness of the material. The method used in this study is a real experimental research method and data analysis to analyze parameters on plate cutting using laser cutting on surface roughness with this number of experiments 9 and 3 replications for the research process by testing surface roughness using Surface Roughness Sj – 210 Mitutoyo. The results showed that the higher the air pressure and the lower the cutting speed, the lower the surface roughness value and vice versa. The lowest surface roughness value is at air pressure of 16 Bar with a cutting speed of 3300/min which is getting a value of 1.499 μm and the highest surface roughness value is at air pressure of 12 bar with a cutting speed of 3400 mm/min which is getting a value of 2.986 μm. dengan kecepatan pemotongan 3400 mm/min yaitu mendapatkan nilai sebesar 2,986 μm.
Analysis of heat and mass transfer in the manufacturing process of instant soy milk using a laboratory scale spray dryer Mufarida, Nely Ana; Abidin, Asroful
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1629

Abstract

The events that occur during the drying include heat and mass transfer processes. So based on this, this research will discuss "Analysis of Heat and Mass Transfer in the Process of Making Instant Soy Milk Using a Laboratory Scale Spray Dryer". The research method used is the experimental method. The research that will be carried out will consist of preliminary research and main research. The purpose of this preliminary study was to determine the drying air temperature, fogging pressure, and the ratio of soy milk powder to water in solution. The best results from preliminary research are used in the main study. Data processing using technical analysis. The results showed that an increase in the drying air temperature of 80 ° C, 85 ° C, 90 ° C, 95 ° C, and 100 ° C caused a decrease in the need for drying air, namely 27.323 kg of dry air / hour to 9.840 kg of dry air / hour, time the drying of the material is shorter, namely 1 hour 10 minutes to 1 hour, the increase in thermal efficiency is 81.9% to 84.3%, and the increase in product weight coming out of the drying chamber is 3.1 grams to 4.1 grams. The results of the questionnaire showed that the panelists tended to rank taste first (65%), aroma second (61.25%), color third (47.5%).
Pengaruh komposisi perekat dan diameter briket biopellet terhadap karakteristik dan temperatur pembakaran pada kompor gasifikasi Tri Cahyo Wahyudi; Sulis Dri Handono; Lukito Dwi Yuono; Rohyani Rohyani
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1756

Abstract

Biopellet is a type of solid fuel based on biomass waste which has a smaller size than briquettes. The purpose of this study was to determine the effect of adhesive composition and the effect of the diameter of biopellet briquettes on the characteristics and temperature and combustion time of the gasification stove. The method used was a mixture of 40% sawdust biomass and 60% coconut shell charcoal by varying the adhesive as much as 20%, 25%, 30% on 4 mm and 7 mm diameter biopellet briquettes. Based on the test results, it is known that the adhesive composition affects the temperature and time produced during combustion. The highest temperature reached 713.20C with an adhesive percentage of 20% at a diameter of 7 mm biopellet briquettes with a flash time of 26 minutes. While the lowest temperature reached 653.00C with 30% adhesive percentage on 4 mm diameter biopllet briquettes and 30 minutes of flame time. For the characteristics of biopellet briquettes from laboratory tests, the highest moisture content value was 8.10% in 30% adhesive at 4 mm diameter for the highest ash content value 9.45% at 30% adhesive variation at 4 mm diameter and the highest calorific value reached 4571.64 cal/g of 20% adhesive vari at 7 mm diameter.

Page 24 of 51 | Total Record : 509

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