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Asmara Yanto
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INDONESIA
Jurnal Teknik Mesin
ISSN : 20894880     EISSN : 25988263     DOI : -
Core Subject : Engineering,
Jurnal Teknik Mesin (JTM) is a journal aims to be a peer-reviewed platform and an authoritative source of information. We publish original research papers, review articles and case studies focused on mechanical engineering and other related topics. All papers are peer-reviewed by at least two referees. JTM is managed to be issued twice in every volume (April and October).
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Articles 7 Documents
Search results for , issue "Vol 9, No 1 (2019)" : 7 Documents clear
Track Record and Research Challenges of Automotive Vocational Lecturer in Indonesia: Screening from Google Scholar 2016-2018 Bagiyo Condro Purnomo; Muhammad Latifur Rochman; Muji Setiyo
Jurnal Teknik Mesin (JTM) Vol 9, No 1 (2019)
Publisher : LP2M - Institut Teknologi Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.522 KB)

Abstract

This article presents a research review of automotive vocational lecturers in Indonesia obtained from Google Scholar during 2016-2018. We found more than 500 articles on Google Scholar produced by 277 lecturers from automotive vocational programs. However, through data filtering, there are only 208 publications related to automotive, including the development of learning media in VHE. Looking at the world automotive research trend (which leads to major issues regarding battery systems, downsizing and turbocharging, and advanced combustion modes), and with concerns about the availability of fossil energy, major and fundamental reforms are needed for research activities in automotive vocational lecturers in Indonesia, both in terms of topic and depth of research material. As a recommendation, stakeholders in automotive vocational programs in universities should immediately form a research roadmap together and form a national automotive research consortium in order to contribute in realizing environmentally friendly vehicle technology and a sustainable national transportation system.
The Effect of Electrode Angle in Forward Welding Thechnique On Fusion Depth Hafni Hafni; Rifqi Rifqi
Jurnal Teknik Mesin (JTM) Vol 9, No 1 (2019)
Publisher : LP2M - Institut Teknologi Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.698 KB)

Abstract

Shielded metal arc welding (SMAW) or manual metal arc welding (MMAW) is included in a group of fusion welding that uses heat generated by a jump in electric ions that occur between the cathode and anode (the tip of the electrode and the surface of the base metal), thus melting together. During the melting process between the electrode and the base metal is protected by a protective gas that comes from the flux of electrodes which fuses during the welding process, then in the process of freezing the flux floats above the weld metal turns into slag, this slag serves to hold the cooling rate on the metal weld. Penetration (fusion depth) of weld metal on base metal is greatly influenced by heat input. This heat input is also influenced by the welding technique and the electrode angle. In this research, advanced welding techniques are used, namely smelting occurs in front of the electrode and the electrode angle is 70°, 75°, 80o, 85o and 90°. the base metal used is low carbon steel ST 37, the electrode used is the AWS E 6013 electrode with a diameter of 3.2 mm with a current of 85 amperes, a voltage of 30 volts. Welding speed 2.49 mm /s. From the results of a macro photo, it can be seen that the electrode angle greatly affects the width and depth of penetration, where at the angle of the 900 electrode it has penetration: 88 µm wide and 6.6 µm depth.
Kinematic Analysis of A 4-Axis Manipulator Design with 2-Axis Gripper Asmara Yanto; Rozi Saferi; Anrinal Anrinal; Fikri Azhar
Jurnal Teknik Mesin (JTM) Vol 9, No 1 (2019)
Publisher : LP2M - Institut Teknologi Padang

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Abstract

The purpose of this work is to analyze the kinematic of a manipulator that was designed to has four revolute movements (R1, R2, R3 and R4) and is equipped with a gripper that has one revolute movement (R) and one prismatic movement (P). The analysis was conducted by varying R1, R2, R3 and R4 of manipulator and R and P of gripper. Kinematic analysis was carried out using the Forward Kinematics method based on DH-Parameters of manipulator and gripper. Manipulator was designed to be consist of 120 mm of Link-1, 200 mm of Link-2, 250 mm of Link-3 and 250 mm of Link-4. Revolute movements range of manipulator was designed for variation of R1, R2, R3 and R4, and with movements range of gripper for variation of R and P. From this work can be concluded that manipulator has 228.5 mm of minimum range radius of end-effector and 547.0 mm of maximum range radius of end-effector.
Mini Review: Potential of Scrap Tires for Useful Material and Products Muhammad Latifur Rochman; Muji Setiyo
Jurnal Teknik Mesin (JTM) Vol 9, No 1 (2019)
Publisher : LP2M - Institut Teknologi Padang

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Abstract

One of the effects of increasing the number of vehicles is the presence of scrap tires. Stacking and burial of used tires have caused serious problems for the environment. Therefore, this article presents a brief review of the potential of scrap tires to be useful materials and products. Of the many potential uses, we find at least three ways to use the scrap tires, which are: converted to rubber powder to be reprocessed as asphalt mixture, concrete mixtures, composite mixes, fillers, and the like; converted to liquid oil through the pyrolysis process; and recycled forms, where the original physical properties of used tires are still visible, such as for furniture, wave breakers, racing circuit safety, and the like.
The Effect of Pressure and Temperature on The Particle Board Manufacture from Palm Oil Empty Bunches and Pine Bark Asfarizal Saad; Anwar Kasim; Gunawarman Gunawarman; Santosa Santosa
Jurnal Teknik Mesin (JTM) Vol 9, No 1 (2019)
Publisher : LP2M - Institut Teknologi Padang

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Abstract

The manufacture of particle boards without synthetic adhesives is influenced by the composition of the material, temperature, time, pressure, particle size and method of manufacture. The pressure of one important parameter and its variations often produce different properties. Pine skin is a waste that is not valuable and just wasted. Making particle boards from palm oil empty bunches and pine bark waste is an interesting and new thing. Pinus merkusii leather powder is used as an added ingredient, its composition is 70% tkks and 30% pine merkusii powder with 5-6% moisture content, dry based. The fiber lengths are 0.1-2.0 cm and pressures are 2, 4, 6, 8 and 10 kg.cm-2, temperature 150, 160, 170, 180 and 190ºC. The standard for particle board reference and bending test is SNI 03-2105-2006 and ASTM D1037. The result show of working pressure and heating temperature affect the density, moisture content and MOR. Increasing pressure and temperature tend to increase the MOR value and increase in temperature above 190oC, the MOR value decreases.
Design and Manufacturing of Soybean Epidermis Peeler Machine Romiyadi Romiyadi; Yudi Dwianda
Jurnal Teknik Mesin (JTM) Vol 9, No 1 (2019)
Publisher : LP2M - Institut Teknologi Padang

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Abstract

The soybean epidermis peeler machine was a machine used to peel of soybean epidermis from  the soybean. The purpose of the study was to design and manufacture of soybean epidermis peeler machine with a capacity of  3 kg for a process. In this study,  the soybean epidermis peeler machine was designed and manufactured with uses 2 shaft to peel the soybean epidermis from the soybean. From the process of designing and manufacturing, has produced a soybean epidermis peeler machine with a capacity of  3 kg for a process. The machine uses a electric motor with a power of 0.5 HP. The transmission system uses pulley transmission between electric motor with 1st shaft and uses sprocket and gear transmission between 1st shaft and 2nd shaft.
Improved Performance Cooling System with Integrated Condenser and Direct Evaporator Cooling Arfidian Rachman
Jurnal Teknik Mesin (JTM) Vol 9, No 1 (2019)
Publisher : LP2M - Institut Teknologi Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (544.472 KB)

Abstract

For areas with very hot and humid weather conditions increased latent and sensible loads are a major problem in cooling systems that will increase compressor work so that electricity consumption will also increase. Combined Condenser with direct evaporative cooling will increase the heat removal process by using an evaporative cooler effect that will increase the efficiency of energy use. This paper presents the study of the use of evaporative cooling and condenser. This paper mainly calculated energy consumption in steam compression cooling systems and related problems. From the results of this study, the use of condensers with evaporative cooling, power consumption can be reduced to 46% and performance of coefficient (COP) can be increased by about 12%, with 1,2 kW cooling capacity.

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