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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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Metalurgi serbuk magnesium untuk aplikasi scaffold tulang mampu terdegradasi Sulis Dri Handono; Mafruddin Mafruddin; Tri Cahyo Wahyudi; Ardian Prayoga; Ilyas Shodikin; Arif Ardiyansah
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2368

Abstract

Healing of bones damaged by accidents or other factors can be done by creating artificial bone structures or bone scaffolds that can initiate the growth of bone tissue and help support bones so they can function. The process of making bone scaffold can be done by powder metallurgy sintering process with magnesium material. The purpose of this study was to determine the effect of variations in sintering temperature and compaction pressure in the magnesium powder metallurgical sintering process on the compressive strength and microstructure applied to degradable bone scaffolds. The research method used is experimental method by making and testing powder metallurgical magnesium material. The powder metallurgy process was carried out with various sintering temperatures of 350°C, 400°C and 450°C and variations of compaction pressure, namely 231 MPa, 309 MPa and 386 MPa. The results showed that variations in sintering temperature and compaction pressure affected the compressive strength and microstructure. The sintering temperature of 450°C and compaction pressure of 386 MPa resulted in the lowest pore percentage rate of 15.14% and the highest compressive strength of 80.26 MPa.
Pengaruh model anyaman serat kulit pohon waru (Hibiscus Tiliceus) terhadap kekuatan tarik komposit Arief Rizki Fadhillah; Nova Risdiyanto Ismail; Dadang Hermawan; Renada Julia Sakinah
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2013

Abstract

Waru tree bark fiber (hibiscus tiliceus) has potential as a natural fiber composite reinforcement, but further research is needed by focusing on the woven fiber model on the strength of the waru tree bark composite material. The problem to be studied is "The Effect of the Model of Waru (hibiscus tiliceus) Bark Fiber Weaving on the Tensile Strength of Composites". The specific objective of this study was to analyze the effect of the woven model of hibiscus tree bark (hibiscus tiliceus) on the tensile strength of the composite in terms of ultimate strength, strain, and modulus of elasticity. The urgency of this research is that the composite of hibiscus bark fiber without woven has a tensile load concentration that is very difficult to predict, so it is necessary to have a model of woven hibiscus bark fiber. The method used in this study is an experimental method. The composite molding process uses the vaccum infusion resin method with a variety of woven models, including: Plain 1-1, Twill 2-1, Satin 3-1, Basket 2-2. The matrix used is Bisphenol A LP-1Q resin and the reinforcement used is hibiscus tiliaceus bark fiber. The analysis carried out in this study, among others: Analysis of composite tensile strength and composite fracture analysis. The type of woven fiber affects the tensile strength of the composite. Therefore, it can be recommended that waru tree bark fiber is more suitable when using basket woven model fiber (2-2) than using unidirectional fiber model.
Analisis optimasi topologi desain support bracket pada steering main shaft mobil TITEN EV-2 Dinasti Achmad Tristanto; Santoso Mulyadi; Muh. Nurkoyim Kustanto; Agus Triono; Intan Hardiatama
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2388

Abstract

The KMHE competition which focuses on optimizing energy in developing cars is held as a form of contribution to overcoming the problem of dwindling energy sources. To get a cell phone with low energy consumption, one alternative is to design a cell phone as often as possible. This research examines the effectiveness of topology optimization methods in making lightweight component designs while maintaining the ability to accept loads when applied. The components that are being optimized are the support brackets on the main shaft steering of Car TITEN EV-2 which are produced using additive manufacturing with PLA+ materials. The load borne by the design is the load when the car is braking and turning. Two Topology Optimization experimental methods were carried out based on the loading arrangement. The first method is carried out by combining two topological optimization results based on loading to produce the final design. The second method is carried out by applying the two loadings simultaneously to the TO process. As a result, the second TO method showed very good results compared to the first method and was redesigned to produce a new design that was ready for use. The results of the new design have a mass of 34.25% lower than the original design. The FEA simulation results also show the results of increasing design strength after topology optimization. The maximum von-mises voltage drop of the new design in the case of braking, turning and combined loading (braking and turning) respectively is 12.56 MPa, 11.64 MPa and 17.99 MPa compared to the original design which is 30.16 MPa, 26.19 MPa and 51.9 MPa.
Studi eksperimental variasi media pendingin dan holding time tempering terhadap kekerasan material pengganti pin track link excavator 305.5E2 Auliana Diah Wilujeng; Misbakhul Fatah; Laily Ulfiyah
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2223

Abstract

The frequency of using heavy equipment that exceeds capacity often occurs in construction projects. This can cause components to fail or wear out as in track link pin components. Therefore, this study aims to obtain a good quality of heat treatment using quenching and tempering methods, to the hardness values of AISI 1045 and AISI 1037 steels for replace the track link pin components of Excavator 305.5E2. In this study, the method of heat treatment is hardening with a temperature of 800℃. After that it is cooled quickly using water and oil media. After that, the specimens were tempered based on differences in holding times of 30, 35, 40 minutes. Specimens that have been heat treated will be tested using a hardness test using the Vickers method. From the results of this study, it was found that the effect of the cooling medium and holding time on the hardness value of AISI 1045 steel. At a holding time of 30 minutes the hardness value was 41.5 HRC. Meanwhile, in water media at a holding time of 30 minutes, the hardness value is 32.2 HRC.
Analisa porositas alumunium alloy terhadap variasi temperatur pada proses squeeze casting semi solid Asroni Asroni; Tri Cahyo Wahyudi; Adek Tri Setiawan
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2587

Abstract

Direct squeeze casting is a process in which molten metal is cooled by applying pressure directly which aims to prevent gas porosity and shrinkage in a material. This process has the advantage of minimizing the occurrence of gas porosity and shrinkage, so there is no material disposal. The purpose of this study to determine the results of good porosity in aluminum Alloy materials with squeeze casting process. The research method is experimental by designing and making test samples of laboratory scale casting squeeze casting. The test was conducted with a variation of 300oC, 400oC, and 500oC pressure of 176 MPa, long pressing 75 seconds, holding time 9 minutes, the specimen was then tested to determine how the influence of mold temperature variations on the results of porosity and density. From the results of the study it can be concluded that the porosity defects of the casting are influenced by the given temperature variation and constant pressing. Many air cavities are trapped in the object product, the more porosity defects that will affect the resistance of the specimen, because the more the object product is solid or reduced porosity defects, the resistance of the specimen will increase. The smallest or good porosity value is shown by specimens with a temperature variation of 5000C which is 17.96%.
Pemanfaatan dinding sebagai permukaan kondensasi untuk meningkatkan kinerja solar still double slope Nova Risdiyanto Ismail; Purbo Suwandono; Dadang Hermawan; Frida Dwi Anggraeni
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2439

Abstract

Indonesia is an archipelagic country that often experiences drought, especially in the dry season. In the dry season, there is very abundant solar and seawater energy, so to overcome the problem, you can use solar still technology that utilizes solar energy to process seawater into condensate / fresh water economically. Various efforts are made to optimize the performance of solar stills, in this case the study aims to utilize the wall as a condensation surface to improve the performance of solar still double slope. The study was conducted experimentally by comparing: 1. Solar still double slope without utilizing the wall as a condensing surface, 2. Solar still double slope by utilizing the north side wall as a condensing surface, 3. Solar still double slope by utilizing the south side wall as a condensation surface, and 4. Solar still double slope by utilizing the north and south side walls as condensing surfaces. The results of the study using solar still double slope by utilizing the north wall as a condensing surface obtained the highest productivity of 1966 ml and the highest efficiency of 68.58%.
Investigasi tegangan kerja pada pisau pencacah di mesin shredder-extruder dalam satu penggerak utama menggunakan Metode Elemen Hingga Adriyan Adriyan; Sufiyanto Sufiyanto; Marfizal Marfizal
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2269

Abstract

Plastic flakes from shredding processes are produced by tearing plastic wastes using shredder blades. During the shredding process, tear forces are the source of loading acting on the tip of the shredder blades. Hence, this research is performed to investigate the working stresses on the blades when subjected to the tear forces during the shredding process. Thus, the working stresses on those blades can be computed by applying the finite element method. In this research, the blades are modeled by two kinds of finite elements, namely the triangular plane stress element and tetrahedron element, with linear shape functions. As a result, the maximum stresses on the blades lie within the range of 49 to 52 MPa for both models. These maximum working stress are below the yield strength of the material used for manufacturing those blades, i.e.: ASTM A36 with 250 MPa of yield strength. Overall, it can be concluded that there are no significant discrepancies in the computed working stresses among the blades.
Pengaruh variasi temperatur dan holding time pada proses annealing leaf spring dumb truck bekas terhadap nilai kekerasan Eko Nugroho; Nurlaila Rajabiah; Tri Cahyo Wahyudi; Juda Inai
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2589

Abstract

Leaf spring is a flat plate component that is clamped together to obtain product efficiency using metal materials, sometimes requiring high hardness and wear resistance. The steel working process is highly dependent on the heat treatment process and the cooling media used to obtain good product quality. The purpose of this study was to determine the effect of variations in temperature and holding time in the process of annealing used leaf springs and trucks on hardness values. This test has been carried out with each variation, namely, temperature 450oC, 550oC, 650oC and held for 30, 60, and 90 minutes as well as the cooling process using air in the heating furnace room. Based on the data obtained, the influence of temperature media and holding time in the Annealing process of used leaf spring dumb trucks has a low hardness value at a temperature of 650°C with a holding time of 30 minutes, 60 minutes and 90 minutes, the lowest hardness value is at 90 minutes, namely 7.7 While the HRC temperature of 550°C and holding time of 90 minutes reaches 26.9HRC, the hardness value is higher and the same as 450°C with holding time of 90 minutes which reaches 30.8HRC. The influence of temperature and holding time on the annealing process of used leaf spring dumb trucks has the lowest hardness value at a temperature of 650°C with a holding time of 90 minutes, namely 7.7 HRC.
Pengaruh Perendaman Bambu Dengan Air Laut Terhadap Kekerasan dan Laju Keausan Komposit Kampas Rem Sunardi Sunardi; Hermawan Susanto; Rina Lusiani; Iman Saefuloh; Hamdan Akbar Notonegoro; Moh. Fawaid
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2444

Abstract

Bamboo is a natural material that is widely found in South Banten. Using bamboo as an alternative material for manufacturing brake pads is interesting to research. Bamboo resistance to attacks of organisms is so low that it is necessary to give initial treatment. Preservation of bamboo sticks is done by soaking them in seawater. This immersion is determined for 15 and 30 days. The comparison of the composite constituent composition is 30% bamboo fiber, 28% bamboo particles, 2% zinc, and 40% epoxy resin. Compaction pressure is carried out by 400 kg/cm2 for 10 minutes. The sintering process is carried out at a temperature of 150 °C for 60 minutes. From this research, it is known that the immersion of bamboo stems in seawater tends to decrease the hardness and the wear rate of composites.
Rancangan dan penerapan teknologi boiler vertikal fire tube untuk perebusan bubur kedelai tahu Kalisari Banyumas Sakuri Sakuri; Hartono Hartono; Nana Supriyana; Yusmedi Nurfaizal; Reza Azizul Nasa Al Hakim
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2284

Abstract

The purpose of the study was to design and application a fire tube boiler for boiling soybean slurry in the process of making tofu with a capacity of 120 kg/day Parameters were measured to compare the boiling process of wood fuel and wood pellet boilers, the efficiency of fuel use, the improvement of tofu quality based on physical and chemical observations, and the use of water for production activities.. The boiler tube is made of steel plate with a thickness of 5 mm. 2 inch diameter sch 80 fire pipe totaling 20 rods. The boiler body is 600 mm in diameter with a height of 1600 mm. The tube sheet uses a plate thickness of 8 mm and the distance between the fire pipes 100 mm. The design uses ASME Section IV of 2004. The boiler manufacturing process uses a welding system. The test results show that the boiler was able to boil 120 kg/hour soybeans because it uses an automatic and sustainable system. The boiler is safe to use because it is equipped with a manometer and pressure control valve so that the boiler works at a safe limit below 2 bar. Boiling with a boiler produces more efficient fuel. The boiling time is faster, the quality of tofu was better chemically and physically, and the use of water in the production of tofu is more efficient.

Page 30 of 51 | Total Record : 509

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