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Scientific Journal of Mechanical Engineering Kinematika
Published by Universitas Lambung Mangkurat
ISSN : 26559048     EISSN : 2655903X     DOI : http://dx.doi.org/10.20527
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is a mechanical engineering journal that focuses on Energy, Applied Mechanics, Materials, Manufacturing Processes. SJME Kinematics journal publish in Indonesian and receive in English. Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is an Open Access Journal that is available for free on online media. We are not only accept journals that focus on the derivatives of the four fields below, but also the possibility of an integrated focus of fields from several fields.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 133 Documents
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EFFECT OF VARIATIONS IN HEATING TEMPERATURE AND COOLING MEDIA ON THE HARDNESS AND MICROSTRUCTURE OF STEEL ST 41 HARDENING METHOD Hajar Isworo; Najib Rahman
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 1 (2020): SJME Kinematika Juni 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i1.136

Abstract

ST 41 steel is one of the types of low carbon steel group whose mechanical properties can be improved by means of the heat treatment process. Hardening is a heat treatment process that aims to increase the hardness and strength of steel by heating, holding and cooling in certain time intervals and cooling media. The purpose of this study was to determine the effect of heating temperature and cooling media on the hardness and microstructure of ST 41 steel. The hardening process was carried out at austenite temperatures(850oC, 900oC and 950oC) with a holding time of 15 minutes then cooled quickly using a cooling medium of distilled water, SAE oil 20W-50, and coconut water. The test results show the optimum hardness value is 326.2 HV at 850oC heating temperature with water cooling media and a minimum hardness of 153.1 HV at 950oC heating temperature with SAE 20W-50 oil cooling media, while theresults of microstructure testing after the hardening process show that the structure formed are martensite and bainite. From this study it can be concluded that the hardening process can increase the value of hardness in ST 41 steel.
ANALYSIS OF PROTECTIVE GAS FLOW AND SEAM FORMATION ON GMAW WELD PROCESS TO HARDNESS AND MICRO STRUCTURE OF ASTM A36 STEEL Fius Lambang; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 1 (2020): SJME Kinematika Juni 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i1.137

Abstract

This study aims to determine the effect of variations in the protective gas flow and seam formation on the hardness and microstructure of ASTM A36 steel. The variation of the protective gas flow used is 5 liters/minute, 10 liters/minute, and 15 liters/minute, while the form of seam used is seam I, ½ V, and V with ER 70S-6 electrodes with a diameter of 1.2 mm. The results showed that the greater protective gas flow would increase the value of violence. The highest increase in weld metal and HAZ hardness was in seam V with 15 liters/minute gas flow as much as 38.06% weld metal, 11.15% HAZ, while the lowest hardness value of weld metal was in gas flow 5 liters/minute at seam ½ V is 41.9 HRB and the lowest HAZ hardness value is in the gas flow of 5 liters/minute in Kampung I which is 40.8 HRB. The highest increase in hardness of base metal was in ½ V with 39.46% with 15 liters/minute gas flow, while the lowest base metal hardness was in Kampung I, 43.4 HRB with 5 liters/minute gas flow. The structural test results show the higher the protective gas flow will increase the formation of more pearlite. The highest percentage of pearlite formation is in the weld metal of seam V, which is 53.16% and the percentage of pearlite at least in the HAZ area of ​​seam I is 38.17%.
EFFECT OF AIR AND SOAKING OF NaCl SOLUTION ON CORROSION RATE OF S45C STEEL WELDS Akhmad Syarief; Ade Azhari Rahmatuloh
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 1 (2020): SJME Kinematika Juni 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i1.140

Abstract

Welding is the joining of two metals so that a strong connection is formed. One of the causes of this steel's efficiency is decreasing. Corrosion is a decrease in the quality and quality of material due to chemical reactions with elements in the environment. The purpose of this study was to determine the effect of air and immersion of NaCl solution on the corrosion rate. The method used is the weight loss method, where after 38 days the S45C steel is left in the open space and 38 days left in the NaCl solution with a variation of seam V, ½ V, and I. From the results of testing for 38 days, the highest corrosion rate of welded seam variation in NaCl solution was 0.0644 mm/y, and then ½ V was 0.0635 mm/y, and the lowest was seam V with 0.0631 mm/y Whereas, without immersion, the highest corrosion rate in seam I was 0.00488 mm/y, followed by ½ V with 0.00431 mm/y, and the lowest seam V was 0.00429 mm/y, V with 0.00431 mm/y, and the lowest seam V with 0.00429 mm/y.
ANALYSIS OF VARIATION OF WIRE FEEDER SPEED ON GMAW WELD PROCESS AGAINST MICRO AND STRUCTURE VIOLENCE ASTM STEEL A36 Aditya Nur Ramadhan M.Ngari.SR.; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.144

Abstract

This study aims to determine the effect of variations in wire feeder speed on the GMAW welding process on the hardness and microstructure of ASTM A36 steel. Wire feeder variations used are 3.5 meters / minute, 3.55 meters / minute and 3.6 meters / minute, ER 70S-6 electrodes with a diameter of 1.2 mm. The results showed that the highest hardness value in weld metal was found in specimen 1 wire feeder speed of 3.5 meters / minute with hardness value of 59.5 HRB. The highest hardness value in the HAZ area is in specimen 3 with a wire feeder speed of 3.6 meters / minute with a hardness value of 57.5 HRB. While the highest base metal hardness value is in the specimen 3 wire feeder speed of 3.55 meters / minute with a hardness value of 64.4 HRB. Microstructure observation results show that the higher the hardness value will increase the pearlite phase more and vice versa the lower the hardness value the ferrite phase is more than the pearlite phase.
MISALIGNMENT DISTANCE ANALYSIS OF VIBRATION AND NOISE VALUE Fathur Rahman Hidayat; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.145

Abstract

This study aims to determine the vibration value that occurs during misalignment 0.1, 0.2, 0.3, 0.4, and 0.5 mm and determine the value of noise that occurs when misalignment 0.1, 0.2, 0.3, 0.4 and 0.5 mm. Variations used are parallel misalignment, angular misalignment and combination misalignment with a distance of misalignment 0.1, 0.2, 0.3, 0.4, and 0.5 mm. The results showed that the highest vibration and noise misalignment occurred when parallel misalignment 0.5 horizontal testing position was 8.97 mm / s overall velocity, 65.43 µm overall displacement, maximum noise 8 dB and carpet -6 dB, whereas for highest angular misalignment vibration and noise occur when angular misalignment 0.5 axial test position of 10.95 mm / s overall velocity, 76.95 µm overall displacement, maximum noise 5 dB carpet -11 dB and for the highest vibration and noise misalignment combination occurs when a combination of 0.5 mm axial misalignment test position is 16.33 mm / s overall velocity, 100.95 µm overall displacement noise maximum 13 dB and carpet 3 dB.
HARDNESS TEST ON AL-Cu CASTING RESULTS DIE CASTING METHOD WITH VARIATION IN POUR TEMPERATURE AND PRESSURE Akhmad Taufik; Ma'ruf, Ma'ruf
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 1 (2021): SJME Kinematika Juni 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i1.160

Abstract

In the automotive industry, the component parts and engine elements mostly use aluminum alloys with the casting process, one of which is aluminum with copper (Al-Cu) aluminum alloys. Metal casting die casting method is part of pressurized casting, where the metal is pressed into the mold. Many aluminum casting industries, especially small and medium industries, in the manufacture of products or components use recycled materials by the casting foundry method, so that they will affect the decrease in material properties. The die casting method is expected to be able to improve its physical and mechanical properties. The casting process using the die casting method is carried out at pour temperature (650⁰C, 670⁰C, and 690⁰C) with variations in pressure 0 (no pressure), 2.5 MPa, 5 MPa and 7.5 MPa. The results of the hardness test showed that the pouring temperature was 650⁰C and 7.5 MPa pressure was the highest hardness with a value of 72 HB and the lowest hardness value was at a temperature of 690⁰C without pressure with a hardness value of 58 HB. From this study it can be concluded that the pouring temperature and pressure are very influential on the value of hardness in the casting process by die casting method.
WATER LEVEL CONTROL SYSTEM IN ORNAMENTAL FISH PONDS USING SMS GATEWAY Lukmanul Hakim; Muhammad Hasan Basri; Hilman Saravian Iskawanto
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.166

Abstract

Memelihara ikan hias adalah suatu hobi yang diminati masyarakat Indonesia, budidaya ikan bisa dibilang tidak sulit, hanya dibutuhkan ketelitian dan ketepatan dalam perawatan air agar terjaga baik, karena Indonesia memiliki curah hujan yang tinggi. Dari pemasalahan tersebut peneliti membuat alat yang dapat mengontrol air saat mencapai batas yang ditentukan saat turun hujan. Peneliti menggunakan menggunakan arduino sebagai kontroler, sim 800L sebagai pengirim peringatan, sensor ultrasonik sebagai pembaca permukaan air, servo sebagai pengontrol kran. Peneliti membuat program menggunakan aplikasi Arduino IDE untuk ditanamkan pada kontroler, untuk memastikan alat berfungsi dengan baik maka dilakukan pengujian perangkat keras dan menguji perangkat lunak sesuai desain yang diinginkan, setelah dirancang dan disatukan dilakukan pengujian total alat yaitu mengontrol ketinggian permukaan udara agar tetap pada posisi normal pada saat air hujan turun yaitu pada ketinggian 14 cm, jika permukaan air melebihi 14 cm maka kran akan terbuka dan mengirimkan peringatan berupa sms. Walaupun pemilik kolam tidak berada di sekitar kolam, tetapi masih mengtahui kondisi kolam saat turun hujan.
DESIGNING MAXIMUM POWER POINT TRACKING (MPPT) CONTROL ON PROTOTYPE TRAFFIC LIGHT SYSTEM USING PID CONTROL Nanang Arianto; Muhammad Hasan Basri; Tijaniyah
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.170

Abstract

Persoalan transportasi merupakan masalah yang umum dialamai oleh setiap orang di jalur lalu lintas, karena persoalan transportasi tidak akan pernah terselesaikan atau akan selalu berkembang dari setiap wilayah. Proses energi matahari dengan solar cell yang tersimpan pada baterai dan di gunakan untuk menyalakan lampu. Pada dasarnya charge control menggunakan ciri regulator tegangan dengan tahapan charge berhenti saat matahari tertutup awan penuh atau sebagian saat proses pengisian baterai. Dari hasil penelitian tersebut telah dirancang dan menciptakan sebuah perangkat sistem Maximum Power Point Tracking (MPPT) pada Prototype Traffic light System menggunakan PID Control yang mengatur daya maksimal pada kondisi cahaya matahari yang dihasilkan nilai tegangan 17,70 Volt dan arus 1,18 Ampere. Untuk pengisian battery charging dibutuhkan sekitar 4 jam yang digunakan 13,6 Volt, dengan pengisian 12 Volt dengan rata-rata keluaran yang dihasilkan 1 Ampere. Untuk mempermudah mengatur frekuensi dan lebar pulsa (PWM) yang didinginkan pada MPPT level tegangan luaran yang dihasilkan pada panel surya 15 Volt sampai 19 Volt, sedangkan tegangan ouput mencapai 14,98 Volt sampai 18,97 Volt.
NUMERICAL STUDY: COMPARISON THE EFFECT OF RATIO LENGTH AND DIAMETER GUIDE VANE OF AIR FLOW ON OUTLET DUCTING Fajar Anggara
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.178

Abstract

Guide vane has an important role for conditioning flow pattern of fluid velocity. With the configuration of axial turbine blade, the flow pattern near wall must have the highest velocity. As such that intention, this research is conducted to compare between the effect of dimension ratio of length and diameter of guide vane using ANSYS FLUENT 17. The dimension ratio of guide vane has been divided into two types with each of types has three variations. Type 1 is ratio of length that having variation A, B and C, whilst type 2 is ratio of diameter with D, E and F variations. The result shows that variation B and F produces the highest velocity. Because the effect of acceleration on variation B is maximum so that it increases the velocity, while on variation F has the smallest angle of guide vane that would reduce the drag force.
EFFECT OF AIR FILTER TYPE ON THE PERFORMANCE OF THE 110 CC INJECTION MOTORCYCLE Baimy Alexander
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.180

Abstract

The air filter is one of the most important components in the combustion motor which functions to filter the air before it enters the combustion chamber. The flow resistance caused by the air filter greatly affects engine power and torque and also affects fuel consumption. The results showed that the use of various types of air filters occurred changes in power and torque on injection motorcycle engines, standard air filters of 7,349 (HP) and 7,429 (Nm) were rotated at 6829 RPM, foam air filters were 7,254 (HP) and 7,648 (Nm) rotated 6862 RPM, Ferrox air filter 7,382 (HP) and 7,737 (Nm) rotated 6794 RPM, without filter 7,268 (HP) and 7,737 (Nm) rotated 6794 RPM. The increase in power and torque is seen in the Ferrox air filter, while the decrease in power occurs without an air filter. Effect on fuel consumption in 20 ml rotated 3000 RPM, for standard air filter 1 minute 57 seconds, foam air filter 2 minutes 13 seconds, Ferrox air filter 1 minute 47 seconds, and without air filter 1 minute 22 seconds, the fastest time in consumption fuel in the experiment without an air filter is 1 minute 22 seconds while the longest time on the foam air filter is 2 minutes 13 seconds.

Page 6 of 14 | Total Record : 133

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