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MECHAFA PUBLISHER Jalan Kapten Yusuf, Lorong H. Yahya No.5. Desa Meunasah Mesjid, Kecamatan Muara Dua, Kota Lhokseumawe. Aceh. 24351
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Journal of Mechanical Engineering and Fabrication
Published by Mechafa Publisher
ISSN : -     EISSN : 30906598     DOI : -
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
The Journal of Mechanical Engineering and Fabrication (JMEF) is a scientific publication dedicated to advancing knowledge and innovation in the field of mechanical engineering and fabrication technology. JMEF accepts articles from various researchers who conduct research in the field of mechanical engineering and product fabrication, both research results of students, lecturers and other researchers. Each article will be processed with a review from reviewers who are members of JMEF. Focus and Scope The main scope of the journal is to publish original research articles in the area of mechanical engineering. The editorial team aims to publish high-quality and highly applied research and innovation that has the potential to be widely disseminated, taking into consideration the potential mechanical engineering that it could generate with a special focus on Mechanical Engineering with scopes: - Energy Conversion JMEF accepts manuscripts written in the field of energy conversion with several limitations. Given the broad field of energy conversion, JMEF has limited the scope to mechanical and thermal energy conversion. Furthermore, the scope itself constrainted by several criteria. In more detail, JMEF only considers on study of the mechanical properties and design of conversion equipment to improve energy efficiency during the conversion process. Therefore, the topic of chemical processes and reactions that indirectly or directly affect the efficiency of thermal energy conversion is outside the scope of JMEF. - Machine and Mechanism Design - Manufacturing Technology - Material Engineering - Mechatronics - Biomechanics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 5 Documents
 1 
Search results for , issue "Vol. 1 No. 2 (2024): September" : 5 Documents clear
Analysis of the effect of variations in cutting speed and feed depth in the ST42 steel turning process on surface roughness Saifuddin, Saifuddin; Sumardi, Sumardi; Faturrahman, Abdul
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 2 (2024): September
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i2.9

Abstract

The quality of the turning results, especially on the surface, is greatly influenced by three parameters, namely spindle speed, feed rate, and depth of cut. The level of surface flatness greatly affects the results of the workpiece after being processed on a lathe. Based on field experience, in the turning process, in order to obtain good surface flatness quality, good component selection is also required. The selection of components in question is one that has a significant effect on the results of the workpiece feed. The lathe tool is the main component in the machining process besides the lathe and the workpiece. The purpose of this study was to determine the surface roughness value of ST42 steel with variations in spindle rotation and cutting depth in the turning process. This test was carried out with a PL-1000 G model lathe with ST42 steel specimens. The roughness tester used was the Mitutoyo SJ-310. The results obtained were the best surface roughness value at 550 rpm spindle rotation of 3.925 µm at a depth of 0.2 mm. The best surface roughness value at 1020 rpm spindle speed is 3.258 µm at a depth of 0.2 mm. The best surface roughness value at 1800 rpm spindle speed is 1.551 µm at a cutting depth of 0.4 mm
Design and construction of a press tool for making plastic paving blocks Usman, Usman; Syukran, Syukran; Armansyah, Agus
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 2 (2024): September
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i2.10

Abstract

Paving block industries have emerged in the North Aceh Regency area, especially for the Baktiya District area where there are 7 paving block industries, which is due to the increasing demand for paving blocks of 1000 units per day in 2019 for office yards, parking lots, for pedestrian sidewalks and for parks. The compressive strength that can be accepted by paving blocks with PET plastic shredded substitution for each composition is as follows, in normal paving blocks (0%) of 11.32 MPa, in paving blocks with an addition of 0.3% of 12.31 MPa, in paving blocks with an addition of 0.4% of 12.70 MPa, in paving blocks with an addition of 0.5% of 14.55 MPa, and in paving blocks with an addition of 0.6% of 11.82 MPa. The percentage of the ability of paving blocks with PET plastic shredded substitution for each composition in absorbing water is as follows, in normal paving blocks (0%) it is 10%, in paving blocks with the addition of 0.3% it is 8%, in paving blocks with the addition of 0.4% it is 7%, in paving blocks with the addition of 0.5% it is 5%, and in paving blocks with the addition of 0.6% it is 9% Mpa
Design and Performance Evaluation of a Palm Oil Empty Fruit Bunch Shredding Machine to Enhance Compost Fertilizer Production Efficiency Yusuf, Ilyas; Darmein, Darmein; Hidayat, T Rian
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 2 (2024): September
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i2.11

Abstract

Paving block industries have emerged in the North Aceh Regency area, especially for the Baktiya District area where there are 7 paving block industries, which is due to the increasing demand for paving blocks of 1000 units per day in 2019 for office yards, parking lots, for pedestrian sidewalks and for parks. The compressive strength that can be accepted by paving blocks with PET plastic shredded substitution for each composition is as follows, in normal paving blocks (0%) of 11.32 MPa, in paving blocks with an addition of 0.3% of 12.31 MPa, in paving blocks with an addition of 0.4% of 12.70 MPa, in paving blocks with an addition of 0.5% of 14.55 MPa, and in paving blocks with an addition of 0.6% of 11.82 MPa. The percentage of the ability of paving blocks with PET plastic shredded substitution for each composition in absorbing water is as follows, in normal paving blocks (0%) it is 10%, in paving blocks with the addition of 0.3% it is 8%, in paving blocks with the addition of 0.4% it is 7%, in paving blocks with the addition of 0.5% it is 5%, and in paving blocks with the addition of 0.6% it is 9% Mpa.
The effect of temperature variation on the surface hardness of AISI 1045 steel using palm shell media with the pack carburizing method Murtadhahadi, Murtadhahadi; Syarif, Jenne; Zannun, Zannun
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 2 (2024): September
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i2.12

Abstract

material for making machine components such as shafts, gears, chisels and bearings in motor vehicles. The use of medium carbon steel in the industrial world is accompanied by adjustments to the required metal conditions, such as the machining process and surface treatment. Pack Carburizing is a process of adding carbon elements or chemical heat treatment which is done by changing the chemical composition of the steel surface by heating at austenite temperature. To obtain maximum pack carburizing results, several processes need to be carried out, namely heating temperature, Holding Time, carbon media and quenching. The purpose of this study was to determine the effect of variations in heating temperature on increasing hardness with the Pack Carburizing heat treatment process. The experimental method used in heat treatment at different temperatures was 850 ° C, 900 ° C, 950 ° C and a holding time of 2 hours. From the results of hardness testing on raw materials, the average hardness value was obtained at 64.20 HRC, after the pack carburizing process the average value at a temperature of 850 °C was 75.93 HRC, and at a temperature of 900 °C it was 88.20 HRC, and at a temperature of 950 °C the highest average value was obtained at 90.23 HRC
The effect of welding electrode variations on the mechanical properties of AISI 1018 material using the SMAW process Saifuddin, Saifuddin; Zaini, Zaini; Putra, M. Adriansyah
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 2 (2024): September
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i2.13

Abstract

Welding quality is largely determined by welding parameters such as welding current, welding electrode and the type of welding process used. The type of electrode with a certain chemical composition has an impact on the fusion that occurs between the parent material and the welding electrode. so that a study is needed on the effect of electrodes on the quality of the joint. The purpose of this study was to determine the effect of welding electrode variations on the mechanical properties of AISI 1018 material using the SMAW process. The material used in this study was AISI 1018 low carbon steel welded using SMAW welding with hardness and tensile strength testing. The results showed that the highest average hardness value was found in the Weldmetal area found in specimen 1 of the E 7016 electrode, which was 15.33 HRC and E 7018 was 20.20 HRC. The weldmetal area of ​​specimen 2 from electrode E 7016 is 18 HRC and E 7018 is 21.50, The weldmetal area of ​​specimen 3 from electrode E 7016 is 12 HRC and E 7018 is 19.50 HRC and from tensile testing it is known that the average value of raw material is 465.09 Mpa. For welding E 7016 is 492.67 Mpa and E 7018 is 522.79 Mpa

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