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Jurnal Teknik Mesin
ISSN : 18298958     EISSN : 26555670     DOI : -
Jurnal Teknik Mesin adalah sebuah jurnal peer review yang didedikasikan untuk publikasi hasil penelitian yang berkualitas dalam bidang teknik mesin.
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Articles 9 Documents
Search results for , issue "Vol 15 No 1 (2022): Jurnal Teknik Mesin" : 9 Documents clear
Pengaruh Preheat, Postheat dan Kecepatan Las Proses Pengelasan Gas Metal Arc Welding (GMAW) Baja AISI 1050 terhadap Nilai Kekerasan Rio Sandy; Viktor Naubnome; Reza Setiawan
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.776

Abstract

The purpose of this study was to determine the effect of preheat, reheating and welding speed on AISI 1050 steel using GMAW welding with a current of 130 A, a voltage of 20 volts, the preheat temperatures used were 250 C, 300 C, 350 C and reheating temperatures of 550 C, 600 C, 650 C, welding speed using automatic tools with speed variations of 2.5 mm/s, 4.5 mm/s, this study used an experimental method including preparation of tools and materials, specimen making, welding process and micro hardness testing of Vicker hardness later obtained The highest hardness result is 206.7 HV at a preheat temperature of 350 C plus a reheating temperature of 650 C with a welding speed of 2.5 mm/s and the lowest hardness value is at a preheat temperature of 300 C plus a reheating temperature of 600 C with a welding speed of 2.5 mm/s in the weldmetal, HAZ and base metal areas with the highest hardness values at a preheat temperature of 300 C plus a reheating of 600 C with a welding speed of 4.5 mm/s of 254.2 HV and 238.3 HV
Analisa Kebutuhan Beban Pendingin Untuk Aula Kampus III UM Sumatera Barat Riza Muharni; Fajar Nur Fadhli; Muchlisinalahuddin Muchlisinalahuddin
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.782

Abstract

The comfort factor of a room is determined according to the location, characteristics and activities in the room. In order for the room to feel comfortable, a tool is needed to cool the room. The hall of Campus III UM West Sumatra as a place for academic activities measuring 28.3 m long, 8.3 m wide, 3.2 m high with a capacity of 130 people, requires air conditioning according to the needs of the room. This study aims to determine the need for air conditioning cooling load for the hall space. The research carried out literature review and observation, calculating temperature, temperature, hall size, and others. The result of the research is that the cooling load is 25.44 kW, so 3 units of split PK type AC are needed
Experimental and Numerical Evaluation of Mechanical Properties for Carbon Fiber Reinforced Epoxy LY5052 Composite for Prosthesis Structures Mahfud Ibadi; Yudan Whulanza; Herry Purnomo; David N Vicarneltor; Tresna P Soemardi; Gatot Prayogo
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.783

Abstract

Carbon Fiber Reinforced Epoxy is a material that is widely used in the manufacture of prosthesis structures. In this research, the carbon fiber used is plain weave-type carbon, while the matrix used is LY5052 epoxy, LY5052 epoxy has advantages such as low viscosity and long pot life making it possible to manufacture large-sized prostheses. The first step in this research is making specimens using the vacuum infusion method and then cutting the specimens with dimensions referring to ASTM D3039. Furthermore, tensile test experiments were carried out with the results obtained that the maximum stress () was 537.15 MPa. As an evaluation, a tensile test simulation was carried out with Finite element analysis using Abaqus software, the material properties used were the results of a tensile test experiment, in the process the mesh selection was carried out by input sizing control many times this was done to determine the accuracy of the results. The tensile test simulation results with abaqus software are 523.3 MPa when compared to the experimental, the difference is only 2.58%. based on experimental and simulation results, the mechanical properties of the Carbon Fiber Reinforced Epoxy LY5052 Composite material are almost the same, so that in the manufacture of prosthesis the mechanical properties data in this study can be used when performing numerical analysis in the prosthesis design process.
Analisis Peforma Dan Komsumsi Bahan Bakar Pada Honda Tiger 2006 Menggunakan Piston Standar Dan Piston Pro Neotech Muchlisinalahuddin Muchlisnalahuddin; Riza Muharni; Usriadi Usriadi
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.784

Abstract

the engine performance is very important at the automotive world, especially on 4-stroke motorcycles, where most people want the engine performance to be better and more economically. In this case to improve engine performance is done by changing the piston on the motor. With a different piston shape can increase the compression ratio. The purpose of this study is to determine changes in compression ratio, torque, power and fuel consumption, after replacing the piston. The test was carried out on a 2006 Honda Tiger, with a standard piston specification with a diameter of 64.5 mm (flat surface) and replaced with a 64.5 mm pro newtech piston (convex surface) by using Pertamax 92 fuel. The results obtained from the comparison of the compression value of 1, 6 : 1, 12.65 ft-lbs of torque, and 2.87 ft-lbs of power so that fuel consumption increases by 5.685%
Perbandingan Penggunaan Cairan Pendingin Radiator Terhadap Temperatur Kerja Mesin Mobil Toyota Avanza 1.5 S M/T Haris Haris; Nota Effiandi; Asmed Asmed
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.787

Abstract

The increasing economic growth of the Indonesian people has implications for the number of vehicle ownership, especially cars. However, this increase is not matched by public understanding of the need for maintenance of the engine cooling system. One way that can be done is to use radiator coolant to maintain the cooling system so that engine performance remains in optimal condition. The purpose of this study was to determine and compare the working temperature of the engine when using several types of radiator coolant. This research uses an experimental approach research method. The test was carried out at 750 RPM, 1500 RPM, 3000 RPM and using a coolant containing a mixture of water with ethylene glycol 0%, 30%, 50% and 80%. In the calculation, it is found that the working temperature of the Toyota Avanza 1.5 M/T car engine is very good using a mixture of water and ethylene glycol 50%, namely with an average engine working temperature of 94.8℃, then a mixture of water and ethylene glycol 30%, namely with an average temperature engine working 96.3℃, a mixture of water and ethylene glycol 80%, with an average working temperature of 98.6℃ engine and a mixture of water and ethylene glycol 0%, with an average working temperature of 101.5℃
Perancangan Pintu Ruang Start Arena Pacuan Kuda Menggunakan Sistem Pneumatik Amri Hidayat; Aldrin Aldrin
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.796

Abstract

Starting gate door is a tool used horse racing arena that serves as a star or space to take off before darting run to racetrack. Doors starting gate consists of a variety of forms and working method, from the manual to which use the automatic system, such as; mechanical, hydraulic, electric and pneumatic systems. Starting gate door with pneumatic system is a tool that is used to open and close starting gate door, the way it works is that a pneumatic cylinder is installed on the door, then pneumatic system functions to open and close the door. Pneumatic system is a tool that uses air as an energy source, components required in the pneumatic system: compressor or air supply unit, or air processing unit (Filter, regulator, and lubrication), regulator or valve unit and the main thing is the pneumatic cylinder serves as a tool which converts compressed air energy into mechanical energy (linear motion of the cylinder rod). In this study aims to be able to get the shape of the starting gate door using a pneumatic system, which can be used as a reference in making the actual door, so that in its application on the racetrack it can be used easily and the time it takes to release the horse becomes faster and the time it takes to release the horse becomes faster. From design results, it is known load that will work on the pneumatic cylinder is 4703.5 N, the inner diameter 100 mm, diameter cylinder rod is 25 mm, total air consumption required is 4,6 liter, compressor discharge is 0,39 liter/second, and compressor power is 0,5 HP.
Perancangan Mesin Pencuci Karpet Menggunakan Tabung Cairan Deterjen Anissa Vivia Fidela; Dandi Ilham; Haris Haris; Ruzita Sumiati; Yuliarman Yuliarman; Yuli Yetri
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.798

Abstract

Carpet washer is a machine that is used to help complete work in the laundry industry. By using this carpet cleaning machine, cleaning carpets is fast and easy. The purpose of designing this carpet washing machine is a form of innovation and creativity based on technological developments. This machine is made with an additional tube of liquid detergent to make work easier and increase efficiency. The initial method of designing this carpet washing machine is to collect data. Next is the calculation and design. The results of the design of this carpet washing machine obtained a motor power of 1.5 HP and a rotation of 1400 rpm, with a height of 1020 mm, a length of 745 mm and a width of 345 mm using a type-A belt transmission, pulleys with a diameter of 2” and 6”, a shaft diameter of 19 mm, the type of bearing used is UCF F212 type, has a cleaning brush and uses a liquid detergent tube. The design of this carpet washing machine has been made based on the correct design and calculation and can be continued for production.
Evaluasi Pelaksanaan Overhaul Pabrik Indarung VI Pada Masa Pandemu di Tahun 2020 Ridwan Muchtar; Benny Dwika Leonanda
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.799

Abstract

Overhaul activity is one periodic maintenance by the company to recondition production equipment in order tooperate with high avaibility and realibility. Overhaul activities can also be referred to as project based on a series of work that occirs unique, complex, done in a certain period of time and resources. This factory overhaul project must be completed on time, according to quality and cost as well as zero accident. In connection with the condition of the Covid-19 pandemic, the work is carried out with the Covid-19 health protocol so that ts doesnot become a source of new spread. In this paper will be discussed the implementation of the overhaul of theplant Indarung VI Year 2020 in the pandemic, starting from the stages of planning, preparation, implementation and evaluation (feedback). The realization of work time experienced delays of 2,68 days, quality according to standards and with the realization of a greater cost of Rp. 2.22 Billion. During the overhaul project there were 3 cases of work accidents and there were no additional cases of Covid-19 in the workforce involved in the project.
Rancang Bangun Mesin Cetak Centrifugal Casting untuk Pembuatan Pipa Komposit Geopolimer Jamiatul Akmal; Arisandi Arisandi; Ahmad Suudi; Asnawi Lubis; Novri Tanti
Jurnal Teknik Mesin Vol 15 No 1 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.1.800

Abstract

In the field of materials engineering, various types of advanced materials have been found. This must also be accompanied by technological advances in the production process. Centrifugal casting is an effective method for casting cylindrical objects such as pipes and pressure vessels. In this research, a centrifugal casting machine is designed and made. The design process follows the steps proposed by Pahl and Beitz, starting from requirements identification, concept design, layout and analysis to the fabrication method. Furthermore, this machine was tested for casting geopolymer composite pipes. From the test results it is stated that this machine works well and can cast pipe samples at various speeds. Furthermore, the sample is cut into a three-point bending test specimen. From the test results obtained bending strength of about 50 MPa (1500 rpm tube rotation) and about 36 MPa (1200 rpm tube rotation). Thus, it is concluded that the higher the tube rotation, the higher the quality of the resulting product.

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