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INDONESIA
Jurnal Teknik Mesin
Published by Institut Teknologi Padang
ISSN : 20894880     EISSN : 25988263     DOI : https://doi.org/10.21063/jtm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
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. JTM is managed to be issued twice in every volume (April and October). The Scope of JTM is: Energy Science and Engineering Applied Mechanics and Materials Design, Manufacturing and Product Development Control, Instrumentation and Robotics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 247 Documents
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The Effect of Electrode Angle in Forward Welding Thechnique On Fusion Depth Hafni Hafni; Rifqi Rifqi
Jurnal Teknik Mesin Vol 9 No 1 (2019): Jurnal Teknik Mesin Vol.9 No.1 April 2019
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2019.v9.i1.15-18

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.
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 Vol 9 No 1 (2019): Jurnal Teknik Mesin Vol.9 No.1 April 2019
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2019.v9.i1.19-28

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.
Mini Review: Potential of Scrap Tires for Useful Material and Products Muhammad Latifur Rochman; Muji Setiyo
Jurnal Teknik Mesin Vol 9 No 1 (2019): Jurnal Teknik Mesin Vol.9 No.1 April 2019
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2019.v9.i1.29-35

Abstract

One of the effects of increasing the number of vehicles is the presence of scrap tires. Stacking and burial of scrap 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.
Design and Manufacturing of Soybean Epidermis Peeler Machine Romiyadi Romiyadi; Yudi Dwianda
Jurnal Teknik Mesin Vol 9 No 1 (2019): Jurnal Teknik Mesin Vol.9 No.1 April 2019
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2019.v9.i1.36-40

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 Vol 9 No 1 (2019): Jurnal Teknik Mesin Vol.9 No.1 April 2019
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2019.v9.i1.41-45

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.
Effect of Point Angle on Delamination in Drilling of KFRP Composite Mohammad Muslimin Ilham; Am. Mufarrih
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.51-55

Abstract

Drilling is the most important machining process in the automotive and manufacturing industries. The performance of drilling KFRP composite materials can be measured by quality characteristics such as surface roughness, burr height, roundness, power consumption, thrust force and delamination. This study aims to determine the effect of process variable variation to delamination response. The experimental is held with three replication. The variations of drilling process variable is point angle (90°, 100°, 110°, 118°, 130° and 140°). The response variables observed is delamination. The cutting tool used is the twist drill HSS Nachi. One Way ANOVA is used to determine the process variables that have a significant influence on the observed response variables. The results showed that the point angle had a significant effect on response of delamination. Increasing the point angle will increase the delamination.
Analysis of Current, Filler Metal, and Groove on Tensile Strength and Hardness of Dissimilar Welding Using Gas Tungsten Arc Welding (GTAW) Eriek Wahyu Restu Widodo; Vuri Ayu Setyowati; Suheni Suheni
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.56-60

Abstract

Dissimilar welding commonly used on many industries, for example power plan field. This paper presents the investigations carried out to study the influence of current, filler metal, and groove on 304 Stainless Steel to AISI 1040 Carbon Steel dissimilar joints. Gas Tungsten Arch Welding (GTAW) was conducted to join the both of base metals. 100 and 120 Ampere of current were conducted on this research, V and double-V groove with 70o of the angle as well. The maximum hardness was obtained 623.2 HVN of ER 70S-6 filler metal with 120 A of current and V groove. While the maximum tensile strength was obtained from the joint using ER 308L with 100 A of current and V-groove of 673.74 MPa. The HAZ region was obtained from the joint using double-V groove was wider than HAZ region of joint using V-groove according the macrostructure image of the joints.
The Potential of Brantas River Iron Sand as A Source of Silica and Calsite Materials Ah. Sulhan Fauzi; Yasinta Sindy Pramesti
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.61-66

Abstract

Brantas River is the second longest river in Java after Bengawan Solo, flowing from Malang, Blitar, Tulungagung, Kediri, Jombang and Mojokerto. In Mojokerto Regency, the river become two branches, the Mas River (towards Surabaya) and the Porong River (towards Porong, Sidoarjo Regency). Brantas has a watershed area (DAS) covering an area of 11,800 km2 or ¼ from the area of East Java Province. The length of the main river 320 km flows around a still active volcano, Mount Kelud. The extent of the Brantas watershed certainly has the abundant potential of iron sand. But the use of Brantas river sand is still limited as a building materials. Even though there are so many ingredients of iron sand such as silica and calsite that can be used for the benefit of others. This research aims to find or identify the content of oxide elements found in iron sand from the Brantas river. The samples of iron sand extracted using permanent magnets were then identified through XRD and SEM tests. XRD results show the content of Calcium Aluminum Silicate (Al2CaO8Si2), magnetite (Fe3O4), Magnesium Vanadium Oxide (Mg0,966 (V1,64Mg0,36) Mg0,105O4) and Sodium Zinc Iron Phosphorus Oxide (Na (Zn0,8Fe0,2) PO4).
Surface Roughness Analysis in Turning of AISI 1045 Steel with Anova and Scheffe Test Am. Mufarrih; Hesti Istiqlaliyah; Mohammad Zaenal Fanani
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.67-72

Abstract

Turning process is a very important machining process in the manufacturing industry. The quality characteristics of a turning machining product can be seen from the level of surface roughness carried out in the turning process. The purpose of this study was to determine the effect of spindle speed, feeding and the main cutting angle on surface roughness. Surface roughness measurement using a surftest SJ-301. The material used in this study is AISI 1045 steel. While analysis of variance (ANOVA) is used to process data. The results showed that the lowest surface roughness can be achieved at spindle speed of 765 rpm, feeding of 0.15 mm / rev and main cutting angle of 85. Data analysis explained that the spindle speed, feeding and main cutting angle had a significant effect on surface roughness. Increased spindle speed, feeding and main cutting angle will reduce surface roughness. The scheffe test results also show contrasting results between the variables studied.
Flying Time Of Quadcopter Based On Green Composites Material Mastariyanto Perdana; Nurzal; Syahrul Firdaus; Rozi Saferi
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.73-77

Abstract

Application of green composites material is aerial egineering. Advantages of green composites material are lightweight and relatively strong. This reason that makes green composites can be applied in Unmanned Aerial Vehicle (UAV). In this study, material of quadcopter frame was composites material that made of waste material from styrofoam, bagasse and eggshell. Styrofoam was used as binder of composite material. Bagasse and eggshell was used as reinforcement in green composite material. The investigation focused on effect of volume fraction on flying time of quadcopter that made of green composites material. This study showed that addition of eggshell powder in composites up 25% by volume fraction, result in decreasing the flying time of quadcopter. Addition of eggshell powder in composites up 25% by volume fraction, result in decreasing the porous of green composite. Porous structure affect the flying time of quadcopter based on green composite materials that made of waste material from styrofoam, bagasse and eggshell. Green composite based on styrofoam, bagasse and eggshell can be applied in Unmanned Aerial Vehicle (UAV) materials.

Page 10 of 25 | Total Record : 247

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