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Jurnal Ilmiah Teknik Mesin
Published by Universitas Islam 45 Bekasi
ISSN : 23030909     EISSN : 25810332     DOI : https://doi.org/10.33558/jitm.v8i2
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Ilmiah Teknik Mesin (JITM) diterbitkan oleh jurusan Teknik Mesin Fakultas Teknik Universitas Islam “45” (UNISMA) Bekasi. Jurnal ini sebagai jurnal berkala ilmiah yang memiliki tujuan untuk mempublikasikan pengembangan ilmu serta wawasan mengenai lingkup teknik mesin yang berfokus pada bidang energi baru terbarukan dan manufaktur. Publikasi yang diterbitkan oleh Jurnal Ilmiah Teknik Mesin UNISMA Bekasi merupakan hasil penelitian para akademisi baik dari penelitian para dosen maupun penelitian kerjasama antara mahasiswa dan dosen, bahkan juga penelitian dari kalangan para praktisi industri yang bergerak di bidang teknik mesin. JITM ini dapat diakses secara full text dan open access oleh para pembaca sehingga para pembaca juga ikut turut membantu dalam peningkatan sitasi dari JITM. JITM dipublikasikan sebanyak 2 (dua) kali dalam 1 (satu) tahun yaitu pada bulan Februari dan Agustus. Lingkup JITM meliputi bidang energi baru terbarukan, dan manufaktur. Bidang energi baru terbarukan yang dibahas mengenai sistem dan alat teknologi konversi yang mampu mengkonversi sumber energi terbarukan seperti energi tenaga air, tenaga angin, tenaga surya, biomassa, dan lain-lain untuk dapat dimanfaatkan energinya ke bidang sektor yang lain. Bidang manufaktur yang dibahas meliputi bidang material, tribologi, dan lain-lain. Redaktur mengundang para penulis dan peneliti untuk mengirimkan artikel ilmiah maupun hasil penelitiannya ke JITM UNISMA Bekasi.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 6 Documents
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Search results for , issue "Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN" : 6 Documents clear
ANALISIS PENGARUH JARAK KAMPUH HASIL PENGELASAN BAJA SS400 TERHADAP SIFAT MEKANIK MATERIAL MENGGUNAKAN METODE GMAW Indrayani, Novi Laura; Oktadinata, Herry; Suteja, Ito
Jurnal Ilmiah Teknik Mesin Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2803.006 KB) | DOI: 10.33558/jitm.v8i2.2183

Abstract

Welding techniques have been used extensively in the construction field because welding techniques are a simpler method in the process of connecting steel than using bolts or rivets. Factors that influence the quality of welding results include distance of the seam. The seam distance can affect the increase in heat input value because the wider the seam distance the more filler metal will be used. The purpose of this study was to determine how the effect of variations in the distance of the seam to the mechanical properties of SS400 steel welding material using the GMAW method. SS400 steel welding welding position 2G with variations in the root gap distance of 0 mm, 2 mm and 4 mm using the GMAW method with a type of protective gas 82% Ar + 18% CO2 and ESAB ER70S-6 type welding wire. Single v butt joint type with a seam angle of 60o and 12 mm thick material. In this study several tests were conducted including distortion testing, non-destructive test, tensile, chemical composition, hardness and microstructure observation. The highest distortion test results obtained at a root gap of 4 mm seam, non-destructive test results showed no welding defects in the upper surface of the weld, the optimal tensile testing results were obtained on a sample root gap of 2 mm with a tensile strength value of 413 MPa and fractures that occurred in the base area metal. The highest hardness test results were obtained at a sample root gap of 0 mm ap with a value of 235 HV and the lowest hardness obtained at a root gap of 4 mm with a value of 209 HV.
ANALISIS KEKUATAN TARIK LOGAM PADUAN Al-Cu-Mg SEBAGAI DUDUKAN SHOCK ABSORBER SEPEDA MOTOR Sadiana, Riri; Putra, Deni; Hidayat, Wahyu
Jurnal Ilmiah Teknik Mesin Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (719.963 KB) | DOI: 10.33558/jitm.v8i2.2184

Abstract

Aluminum is a non-ferrous metal that has good thermal conductivity and is widely used in various mechanical machinery systems. Efforts to obtain additional mechanical strength from aluminum can be combined with Cu, Mg, Si, Mn, Ni and so on. This research was made to prepare a Motorcycle Shock Absorber that is useful as a pedestal and handle shock breakers against the swing arm, with aluminum alloy material (Al), copper (Cu), and magnesium (Mg). The purpose of this research is to know the tensile strength and know the value of the strain. The method of this research process is aluminum alloy with a variation of Specimen 1 ratio is 3% copper and 7% magnesium, for Specimen 2 replacement is 5% copper and 5% magnesium, and the variations that support Specimen 3 are 7% copper and 3% magnesium. From the results of this study, the tensile strength and strain values ​​obtained in specimen 1 were 125.5 MPa and 3.56%. For specimen 2 the tensile strength and strain values ​​were 150 Mpa and 3.42%. While the specimens of 100% tensile strength and strain are 137 Mpa and 7.48%. The best results from copper and magnesium alloys are Al alloys of 90%, Cu 5% and Mg 5%, with a tensile strength value of 150 MPa and a strain value of 3.42%.
ANALISIS KETINGGIAN TOOL PUNCH RIVET TERHADAP HASIL RIVET ING CONTACT PADA SWITCH LAMPU REM MOTOR TIPE C8EA -, Cuncun; -, Paridawati; -, Taufiqullah
Jurnal Ilmiah Teknik Mesin Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.447 KB) | DOI: 10.33558/jitm.v8i2.2185

Abstract

The product of CBEA Terminal B / B2 Assy is one of the C8EA type Switch components used for brake light switches on two-wheeled vehicles. In the manufacturing process often experience Contact Crack. Contact Crack problems occur in the rivet ing process. This study aims to reduce / eliminate the contact Crack problem, the method used is to conduct research on variations in the height of the punch in the rivet ing process. The initial height of the punch before the research is 49.10 mm, in this study the height of the punch to be examined is 48.60 mm, 48.70 mm, 48.80 mm, 48.90 mm and 49.00 mm. The results obtained for the most appropriate punch height are the height of 48.60 mm with the contact Crack ratio of 3/20, the size of the Crack & contact size entered into the standard, the flexural strength is still standard and the average hardness produced is 92.52 HV which is included in the maximum standard.
ANALISIS PENGARUH VARIASI MATERIAL CORE TERHADAP KUALITAS NIPPLE Julian, Moh Rofi; Handoyo, Yopi
Jurnal Ilmiah Teknik Mesin Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (962.341 KB) | DOI: 10.33558/jitm.v8i2.2186

Abstract

This study aims to determine the effect of variations in core material made of iron and resin sand on the Nepel Brass smelter on hardness, surface results of castings, shrinkage, density apparent, time, and cost. To find out which core material is more efficient for use in large quantities. The product material used is Brass in the form of Hose Nipple with a size of 1/5 x 5/8 inch. The average specimen weight in this study was 8.33 gr. From the research conducted, the differences were found, namely the hardness of the smelting process with the core material of iron castings and resin sand is 37.14 BH 5 / 250-25 and 30.94 BH 5/250-25. Material defects found are in iron castings specimens, namely rough surface defects, pinhole, scrabs, gas holes and air voids with 19 points of defect points and an area of ​​78 mm or 10.57% of the inside area of ​​the specimen. Likewise with resin sand-coated specimens experiencing defects of Coarse Surface, Needle Hole, Scrabs, Gas Hole, Air Cavity and sand inclusion / erosion hardness, with large numbers almost covering all parts of the specimen or 95.1%. For shrinkage, cast specimens with iron castings are smaller at 0.35% and resin-coated specimens of 0.40%. For porosity defects, iron castings in the specimens were 8.33 and 8.40 in the core of the resin sand castings. The higher the true density, the more dense the material is. The production time is 555 seconds (9 minutes 15 seconds) from the smelting process of specimens with the core of resin sand castings which is for 829 seconds (13 minutes 49 seconds). Whereas for the process of releasing specimens from molds, products with resin sand castings are faster at 14 seconds, while for specimens with iron castings core is 28 seconds. The cost required to make specimens with iron cast core is Rp. 4,718,500, the cost is cheaper than the manufacture of specimens with core resin sand castings that require capital of Rp. 4,999,000.
PENGARUH PROSES HARDENING BAJA AISI 1045 TERHADAP SIFAT KEAUSAN Rachman, Yosyi Mustafa; Maulana, Ahmad; Ekawati, Fatimah Dian
Jurnal Ilmiah Teknik Mesin Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (518.551 KB) | DOI: 10.33558/jitm.v8i2.2187

Abstract

AISI 1045 steel is a steel classified as medium carbon alloy steel which is widely used as the main material in machinery so it must have good mechanical properties such as hardness, wear resistance. The purpose of this study was to determine the effect of heat treatment on the wear rate of AISI 1045 steel. The research method used was AISI 1045 steel which was given a hardening heat treatment with a temperature variation of 800ºC, 850ºC, 900ºC with a holding time of 60 minutes, followed by rapid cooling using water . after that the specimen will be tested for wear by using a standard Pin On Disc. the results of the study show that the wear value at 800ºC has an average wear value of 15.0762 mg / cm², then at a temperature of 850ºC has an average wear value of 11.33933 mg / cm² and at a temperature of 900ºC has an average wear value of 9 9488 mg / cm². In conclusion, there was a very strong influence on the use of hardening temperature variations on the AISI 1045 steel wear and the smallest wear value on the specimen given by the hardening process at 900ºC with an average wear value of 9.9488 mg / cm².
ANALISIS EKSPERIMENTAL KINERJA TURBIN VORTEX AKIBAT PERUBAHAN TINGGI IMPELLER TIPE SUDU BERPENAMPANG LURUS Rahmanto, Raden Hengki; az, Muhammad Syaifuddin; Setiadi, Geri
Jurnal Ilmiah Teknik Mesin Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (713.803 KB) | DOI: 10.33558/jitm.v8i2.2188

Abstract

The use of fossil fuels is now increasing while these resources will be used up if used continuously and these energy resources require a long process to be reused. Alternative energy sources and renewable energy reserves in Indonesia are quite large, but their development has not been optimal because of the geographical gap between the location of energy supply and demand and high technology investment to develop new renewable energy-based technologies and the application of new renewable energy technologies, especially in the electricity sector and as fuel. Based on research that has been carried out on the mechanics of involute inward vortex inflows, the optimal size of the impeller height has not yet been found. This study uses an experimental research method, namely by making a vortex turbine with a straight-section blade type that has a blade height of 180 mm, 210 mm and 240 mm with a water capacity of 10.1471 L / s. loading variations used 3 kg, 3.5 kg, 4 kg, 4.5 kg, 5 kg, 5.5 kg and 6 kg. Tests will be carried out with the above variables on torque, mechanical power and vortex turbine efficiency. The results obtained that the height of the impeller 210 mm has torque, mechanical power and optimal efficiency than the impeller height of 180 mm and 240 mm. The highest mechanical power produced by turbines with an impeller height of 210 mm at a capacity of 10.1471 L / s with a load of 6 kg has a mechanical power of 24.28 watts. The highest efficiency is owned by turbines with a height of 210 mm occurred at a capacity of 10.1471 L / s with a loading of 6 kg, having an efficiency of 37.93%. This is because by adding the height of the impeller to the turbine, the area of ​​the blade affected by the impact of the water fluid becomes more, even when given the turbine loading conditions are not completely submerged. The more blade area submerged by fluid has a more significant influence on the power and efficiency produced than turbines that are resistant to loading even though the turbine is perfectly submerged.

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