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Jurnal Elemen
Published by Politeknik Negeri Tanah Laut
ISSN : 24424471     EISSN : 25812661     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering
Jurnal Elemen is a media for publishing scientific articles in the field of mechanical and automotive engineering which are published regularly in June and December each year. All articles presented are the results of research, conceptual ideas and reviews in the field of mechanical and automotive engineering that have never been published before. Jurnal Elemen managed by P3M in the Tanah Laut State Polytechnic has been ISSN, namely the printed version of ISSN 2442-4471 and online version of ISSN 2581-2661, and for now the Elementary journal has been indexed in ISJD (Indonesian Scientific Journal Database) in PDII-LIPI . then it can be indexed and accredited at SINTA, DOAJ and Scopus.
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Articles 12 Documents
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Search results for , issue "Vol. 9 No. 2 (2022)" : 12 Documents clear
Ballistic Performance and Microstructure of Tempered AISI 4130 Steel Ilham Aminudin; Sovian Aritonang
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 2 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i2.220

Abstract

Heat treatment methods are generally carried out to increase ductility, increase hardness, increase metal tensile stress, and so on. AISI 4130 steel is commonly used for manufacturing equipment, vehicle parts, stone-crushing machines to body armor. To improve the quality of the steel, heat treatment is required by providing austenitizing and tempering processes. This study aims to determine the hardness, density, and ballistic performance of AISI 4130 steel after tempering at 290oC. The results of experiments on AISI 4130 steel which has been tempered at a temperature of 290oC with a time of 90 minutes. Gets a hardness of 45 HRC. For the density test, the result is 7.85 g/cm3. With the results of the ballistic test getting the numbers V = 635 m/s and V50 = 600 m/s, the penetration mode is plugging.
DESAIN RANCANGAN GANTRY: DESAIN RANCANGAN GANTRY CNC ROUTER 3 AXIS DENGAN PENDEKATAN TOPOLOGY M. Nushron Ali Mukhtar; Mochamad Andi Akrianto
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 2 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i2.224

Abstract

The 3 Axis Gantry CNC Router Design uses the finite element method as an essential step, bearing in mind that the shape displacement caused by the chisel movement must be as minimal as possible because it affects the quality of the craft. This study aims to optimize the gantry design of a three-axis CNC Router machine that is strong, light, and sturdy. This study uses the Finite Element Method with a topological approach to solving engineering problems. The results of the data analysis are in the form of von Mises, displacement, and safety factor values from the simulation of 10 kg, 20 kg, and 30 kg loading variations. Furthermore, optimization is carried out on the design of the gantry design using topological analysis to reduce the weight or mass of the gantry construction. The results of the modified gantry design are more optimal than the new and initial gantry designs, both from the effects of von Mises, displacement, and safety factors. In addition, the weight or mass of the modified gantry design is lighter by 1.8 kg.

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