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Jurusan Teknik Mesin Fakultas Teknologi Industri Institut Teknologi Medan Jl. Gedung Arca No. 52 Medan Sumatera Utara 20217
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Jurnal Ilmiah Teknik Mesin "MEKANIK"
Published by Institut Teknologi Medan
ISSN : 24431184     EISSN : 25810235     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
MEKANIK adalah Jurnal Ilmiah Teknik Mesin yang terkait dengan bidang teknik mesin atau bidang lain yang digunakan untuk mendukung kegiatan usaha, pendidikan, pelatihan, dan penelitian dalam bidang teknik mesin dalam bentuk karya ilmiah.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 98 Documents
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RANCANG BANGUN MESIN PENCACAH UBI MODEL ROTARY UNTUK BAHAN BAKU PAKAN TERNAK KAPASITAS 100 KG/JAM Tambunan, Ari Perdana; Nurdiana, Nurdiana; Yulfitra, Yulfitra; sutrisno, Franky; Siagian, Tony
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 1 (2017): Mei 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

Cassava is one of the animal feeds, namely poultry and fish feed, etc. Its use is very beneficial for farmers easily to get this material. The processing of cassava is by chopping small cassava by chopping manul. This method is felt to be less efficient for a large amount because it will take a lot of time and energy, so by making the solution with a wake up design. in this design, it is devoted to the calculation of its components. In this design, the power used is 3.519 kw with a 2000 rpm engine speed, turning a 40 mm shaft using a 3 inch pulli 4 inch pulli with a 1500 rpm dish rotation using a V type A belt, with 9 blades in the tube.
MEKANISME KEGAGALAN PAHAT PADA PROSES MILLING AKIBAT ALIRAN SERPIHAN PEMESINAN KECEPATAN TINGGI AISI 4140 Saputra, Aswin; Yunus, Surya Murni
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2017): November 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

The mechanism of tool failure is the way to wear wear damage on the tool. This study aims to investigate the mechanism of tool wear / tool wear (Vb) which is useful to provide information on the wear mechanism of the tool in a high-speed, dry machining process with a HSS Cobalt M42 tool used for machining milling of AISI 4140 steel material. the cutting speed (v) differs above 200 m / min, the cutting depth (a) = 0.5 mm, the feeding motion (f) = 0.5 mm / min and the main cutting angle of the tool (Kr) = 90 ° at the rate condition high speed cutting. From the results of the study the mechanism of tool failure that occurs is side wear. Where the highest wear wear occurs in conditions v = 755 m / min, f = 0.5 mm / min, a = 0.5 mm, with flake thickness (hc) = 0.88 mm and flake flow velocity (Vc) = 431.42 m / where the value of Vb = 0.325 mm. The wear mechanism that occurs due to the flow of debris that moves upward touches the cutting edge of the tool with the shape of the broken debris.
TEKNOLOGI PROSES PEMBUATAN ALAT PENGUPAS KULIT KACANG MERAH DENGAN DUAL ROLL PENGUPAS KAPASITAS 100 KG/JAM Ginting, Fajar Kerehen Yusuf; Mahyunis, Mahyunis; Mahadi, Batu
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2017): November 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

Red bean skin peeler machine with a capacity of 100 kg / hour using dual roll peeler is a tool to facilitate the public to increase the productivity of red beans and quality which has a main component consisting of frame, peeler roll, inlet, outlet and motor drive. While the supporting components are reducer, fan, bearing, pully, belt, chain, and main shaft. The types of machine tools used are lathes, cutting grinding machines, hand grinding machines, welding machines, drilling machines, sawing machines, milling machines and cylindrical grinding machines. Some things that need to be considered from the manufacture of red bean peeling machines are identifying materials and models, choosing machine tools, planning work steps, analyzing the processing time and making a schedule for making red bean skin peeling machines. From the results of the analysis of the calculation of the work that can be analyzed perole the total time of making components is 23.58 hours.
ANALISA SISTEM KERJA MESIN PENGGILING EMPING JAGUNG DENGAN SISTEM DOUBLE ROLLER KAPASITAS 100 KG/JAM Hasahari, Ali Fahmi; SAM, M Danny; Eswanto, E
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2017): November 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

Corn chips grinding machine is a machine that is used to grind and flatten corn to become corn chips, with a rotary grinding and piping roller movement, this machine is planned to have a capacity of 100 kg / f am, this test is to determine the production capacity, quality of piping hash, productivity analysis and variation in distance when selecting corn chips from the test results there is a 24 rpm rotation with a 2 mm piping roller distance obtained a capacity of 144 kg / hour with a production power of 5.36 watts / kg, at round 24 with a 3.5 mm piping roller distance obtained a maximum capacity of 122 kg / hour with engine productivity power of 6.33 watts / kg, 24 rpm pwda piwaran with jarctlc 5 mm piping roller obtained a maximum capacity of 133 kg / hour with a 633 watt / kg engine production capacity. the capacity obtained by empingfagung grinding machine is different due to the difference in time when testing start and first 29.69 second trial seconds 29.52 seconds, and the third experiment 32.58 the quality of piping is 79.5% at the distance of the piping roller piping is 77.5% on 3.8 mm piping roller distance, 82.5% kwalitasii on 5mm piping roller distance.
KAJIAN PERUBAHAN DISTRIBUSI KEKERASAN DAN PERUBAHAN STRUKTUR MIKRO PADA PROSES QUENCH TERHADAP VARIASI DIAMETER DALAM DARI BAJA KARBON SEDANG TIPE SAE 1040 Romania, Romania; Mizhar, Susri; Yulfitra, Yulfitra; Suherman, Suherman
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2017): November 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

The purpose of this study was to determine the mechanical and microstructure properties of medium carbon steel (carbon steel), namely carbon steel with carbon content (0.30% - 0.60% C); SAE 1040 steel is used as a shaft in a component of a machine. In this study Heatreatment was carried out at a temperature of 850 ° C with a hold time of 2 hours and then cooled quenched on the water cooling medium until it reached room temperature. Then the hardness and microstructure tests were carried out. In this study there were 3 specimens with the highest price of hardness found in specimens with an inner diameter of 30 and a thickness of 20 mm with an average value inside 275.9 HVN, Center 215.06 HVN, and Outside 732.9 HVN. From the observation of the microstructure showed that the SAE 1040 steel that had been in the heatreatment contained ferrite, pearlite, and martensite phases. The results show that the mechanical properties and microstructure are strongly influenced by temperature and holding time.
KARAKTERISTIK UMUR PAHAT PADA PROSES MILLING TERHADAP PEMESINAN KERING AISI 4140 Harianja, Ivan Andri; Yunus, Surya Murni
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2017): November 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

Tool life is a machining data that is very important in machining planning. Characteristics of tool life is a function of the thickness of the chips, temperature and flow velocity of the debris. If the thickness of the flakes is greater, the temperature will be higher while the flow rate of the flakes will be lower than the cutting speed so that the tool wear / tool life is obtained. The research was conducted by observing the effect of cutting conditions, where the cutting speed was varied while other cutting conditions, such as feeding motion, infeed depth and fixed cutting time. The purpose of this study was to determine the HSS tool life with AISI 4140 steel. 755 m / min, f = 0.5 mm / put, a = 0.5 mm, that the tool wear (Vb) obtained is 0.325 mm, the value can be said that the tool wear / tool life limit has been reached, because according to ISO 3685 tool life wear limit is 0.3 mm.
PROSES PEMBUATAN MESIN PENCACAH DAN PEMERAS LIDAH BUAYA UNTUK BAHAN DASAR KOSMETIK DENGAN KAPASITAS 30KG/JAM Setiawan, Bagus; Sutrisno, Franky; NURDIANA, NURDIANA; Lubis, Zulkifli; Mahyunis, Mahyunis
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2017): November 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

Traditional tools used in Aloe vera squeeze are classified as ineffective if used in medium and large scale processing. While the use of aloe vera as a raw material for a product is quite large, it is necessary to use an aloe vera squeezer that is able to overcome and handle the problem. So with the statement above, a machine that is capable of carrying out the process of curing and squeezing aloe vera for cosmetic ingredients is 30 kg / hour. In the process of making aloe vera machines and squeezing equipment used such as sawing machines, manual plate machines, lathes, welding machines, drilling machines, grinding machines. In the process of making this machine there is the main component workmanship and the processing time, namely the machine frame made of 37 "L" st time profile 9, 52 hours, screw press shaft made of 35 minutes S35 C material, the counter blade is made of material S 35 C 18 minutes, screw press made of 36 minutes plate material, screw press tube made of steel pipe material 2; 25 hours, inlet funnel from gallvanis plate material 2; 15 hours, outlet funnel made of gallvaniss plate material 1 25 hours, the aloe vera water filter is made from plate 1, 30 hours, a counter knife made of steel plate 2, 30 hours. From the time of the engine design, the total manufacturing schedule was obtained as the effective time was 26.7 hours, if the machining was estimated at 70% or (0.70), the machining time would be 26.7: 0.70 = 38.7 hours. so the reality time (reality in the field) is 38.7 hours.
RANCANG BANGUN MESIN PENGGILING UBI PEMBUAT GETUK DENGAN SILINDER ULIR KAPASITAS 50 KG/JAM Pandiangan, Prabu J.G; Oppusunggu, K
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2017): November 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

At present the yam milling is still a lot of using manual methods, namely by pounding yams using mortar, where this work takes a long time so that the required results are not maximal. So to simplify and shorten the processing of yam mills, a yam grinding machine is made with the aim to speed up the work and get maximum results so that it can meet the needs of the market. This sweet potato grinding machine is a tool to grind yams in an automatic way that can be used as needed, so that the work can be completed quickly. This engine is driven with 1 hp and 1450 rpm rotation, forwarded to a drive pulley that is 4 inches in diameter, and a 6 inch pully driven, as a round connector used a V. type belt. This 4 inch diameter will move a reducer with a rotation ratio of 1 : 40 then forwarded to the drive shaft, the shaft used is 30 mm in diameter, where the shaft used is the shaft shafts. The threaded shaft is made of stainless steel, and at the end of the shaft there are 4 pieces of knife blade which are used to chop up unripe yam fibers. Machine frame material from steel elbow plate (propil "L") 3 x 30 x 30 mm, frame length = 800 mm, frame width = 420 mm, frame height = 520 mm. The planned engine capacity is 50 kg /hour.
ANALISA VARIASI PUTARAN PADA MESIN ROLL PEMBENTUK PLAT PROFIL TERHADAP HASIL PENGEROLAN PLAT 1 MM Firmansyah, Muhammad Rizky; Yulfitra, Yulfitra; zulkifli, zulkifli; Basyir, Abdul
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 1 (2017): Mei 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

Plate roll machine is a tool used to make materials into other forms as the basic material for making gutters. To get good rolling quality and in accordance with the basic ingredients for making machines. The question of roll machine rolls is done to analyze the yield and rolling quality. From the observation of 6061-O aluminum plate with 23 rpm (n) rotation, the results of rolling are 8 pieces, 36 rpm (n) rotation, 9 pieces of rolling results, and 44 rpm yield (n) rolling produces a wave of 11 pieces. The results of rolling with a slight wave defect and will be used as the basic material for making gutters.
TEKNOLOGI PROSES PEMBUATAN MESIN PENCETAK ADONAN KUE KACANG INTIP DENGAN SISTEM ROLL CUTTING KAPASITAS 10 KG/JAM Ritonga, Abdul Rahman; Mahyunis, Mahyunis; Mahadi, Batu; supryadi, supryadi
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 3 No 1 (2017): Mei 2017
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

From the results of the design of the peanut cake molding machine with a roll cutting system capacity of 10 kg / hour, obtained several main components namely 2 pieces of pressing roll, 1 set of cutting blades 1 set of conveyor belts, 2 roll conveyors and other supporting components such as gears, bearings , chain, reducer, frame and drive motor, the next step is to determine the work steps of making components and determining the tooling equipment used, among others, making the frame using steel ruler, sawing machine, welding machine and hand grinding. Manufacture of drive shaft using a sawing machine, and lathe, press roll making, using cutting saws and welding machines, manufacturing of blades, cutting grinding machines, welding machines, and hand grinding, the manufacture of inlets using hand grinding machines and welding machines, manufacture of outlet using hand grinding machines and welding machines. From the results of calculating the component manufacturing and assembly processes, the frame is 5.49 (hours), drive shaft 200.08 (minutes), press roll 2.42 (hours), roll conveyor 2.42 (hours), blade 20, 65 (hours) inlet 1.68 (hours), outlet 1.39 (hours) and assembly 5.88 (hours). Based on the analysis of the results of the actual manufacturing time for 43.67 (hours) the actual time for the process of making the printing machine for peanut cake dough for 43.67 (hours). If the engine work efficiency is estimated to be 80% or (0.80), the machining time becomes 43.67: 0.80 = 54.58 (hours).

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