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All Journal Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Inovasi Teknologi Manufaktur, Energi dan Otomotif Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Jurnal Kendali Teknik dan Sains
Fica Aida Nadhifatul Aini
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Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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ANALISIS VARIASI TEKANAN GAS O₂ TERHADAP WAKTU DAN BIAYA PADA PROSES PEMBUATAN COVER RADIATOR MOTOR DENGAN BAHAN PLAT BAJA MENGGUNAKAN MESIN FIBER LASER CUTTING Siti Duratun Nasiqiati Rosady; Vany Ramadhany; M.Fauzi Soulton; Eli Novita Sari; Zakiyah Amalia; Talifatim Machfuroh; Fica Aida Nadhifatul Aini
Jurnal Inovasi Teknologi Manufaktur, Energi dan Otomotif Vol. 2 No. 1 (2023): Jurnal Inovasi Teknologi Manufaktur, Energi, dan Otomotif
Publisher : Politeknik Negeri Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57203/jinggo.v2i1.2023.67-76

Abstract

In the industrial world, especially in the manufacturing industry, there are many technological developments that support better work processes. One of them is cutting technology or cutting machine, which has developed a lot of technology. There are more and more motorbike modifications for the use of transportation on the road or to be contested in motorbike modification competitions. One of them is the modification of the radiator cover which is most often found on motorcycles. Modification of the radiator cover using steel plate material has the advantage that it is stronger than the factory default radiator cover. This research uses an experimental method by varying the pressure of O2 gas then observing, recording and calculating research data. The purpose of this study was to determine the effect of variations in O2 gas pressure on the most optimal production time and estimate the production cost of the radiator cover for the motorcycle. From the results of observations and calculations of time and costs carried out in the radiator cover production process, it is obtained that the production time is 6.32 minutes / product and the production cost is Rp. 95.000,-/product. Keywords: Cover Radiator, production time, production costs.
Fatigue Test of Plastics and Manufacturing Collet Nut Driver for Integrated Rotating Bending Fatigue Test Machine Tri Setyo Aji Cahyono; Hadi, Syamsul; Rico Wahyu Pratama; Zakiyah Amalia; Fica Aida Nadhifatul Aini; Kadir, Aini Zuhra Binti Abdul
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 24 No. 3 (2024): November
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v24i3.110-116

Abstract

The unknown fatigue life of injection molded plastic materials and the ineffectiveness of clamping both ends of the specimen in the collet of the Integrated Rotary Bending Fatigue Testing Machine with manual tightening and loosening are the obstacles faced. The purpose of testing and making a collet nut driver is to obtain a prediction of the fatigue life of injection molded plastic materials and to increase the effectiveness of clamping the end of the specimen with the help of a DC motor drive. The research method uses experiments which include injection molding of plastic materials of the type Polypropylene (PP) and Acrylonitrile Butadiene Styrene (ABS), checking the straightness and surface finishing of the specimen, fatigue testing at 1800, 2000, 2200 rpm, analysis of fatigue test results, and design-manufacturing collet nut drive with DC motor drive and transmission of a pair of spiral cone gears, manufacture of DC motor sliding movement mechanism along the reach of both ends of the specimen, installation of electric power circuits for direction and electric current switches for clockwise and counterclockwise rotation functions, and analysis of the results of the fatigue test and performance of the collet nut driver The results of fatigue testing at a bending stress (S) of 68 MPa for PP material show that at 1800 rpm, the fatigue life (N) was obtained at 2,014,605 cycles and at 2200 rpm, N was obtained at 1,506,486 cycles. Meanwhile, for ABS specimens, at 1800 rpm, N was obtained at 1,547,106 cycles and at 2200 rpm, N was obtained at 1,190,425 cycles, which means PP material has a longer fatigue life compared to ABS. The test results of the DC motor drive on the collet nut showed that the duration of tightening/loosening was 4.4 times faster than manually, which originally had a duration of 66 seconds, down to just 15 seconds for the DC motor drive.
Analisa Pengaruh Variasi Voltage dan Perbedaan Kawat Las GMAW terhadap Cacat Las pada Sambungan Fillet T Joint menggunakan Visual Test dan Penetrant Test Lintang Firdaus Romadhoni; Fica Aida Nadhifatul Aini
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 4 (2025): Agustus: Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i4.919

Abstract

The welding process is a crucial element in the fabrication and manufacturing industries, serving to join two or more components into a single unit. The quality of the weld is very important, but defects such as undercut, underfill, and spatter are often still found. This study aims to analyse welding defects caused by voltage variations and differences in welding wire on T-joint fillet welds using the Gas Metal Arc Welding (GMAW) method on 8 mm thick plates. The voltage variations used were 20.6 V, 23.7 V, and 27.9 V, with welding wires EN ISO 14341-A: G 42 4 M21 3Sil and EN ISO 14341-A: G 46 4 M21 Z 3Ni1Cu. The research method used visual inspection and penetrant testing to identify types of welding defects. The research results showed four types of welding defects from visual inspection: spatter, undercut, weld deposit thickness, and excessive throat thickness, and two from penetrant testing: undercut and end creater pipe. Based on the two tests conducted in this study, it can be concluded that the optimal welding results were achieved at a voltage variation of 23.7 V using the EN ISO 14341-A: G 46 4 M21 Z 3Ni1Cu, as it had the fewest welding defects. The worst welding results were obtained at a voltage variation of 20.6 V using both types of welding wire, as this welding process resulted in numerous welding defects in both visual and penetrant testing. This study provides insights that proper welding parameter settings significantly influence the quality of the welded joint.
Analysis of the Effect of Root Gap and Welding Voltage Variations on Weld Defects in GMAW Penetration Muhammadanis Naufal Akif; Fica Aida Nadhifatul Aini
Jurnal Kendali Teknik dan Sains Vol. 4 No. 3 (2026): Juli Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i3.6456

Abstract

Welding is an essential process in the manufacturing industry, particularly in metal fabrication. Gas Metal Arc Welding (GMAW) is widely applied because of its efficiency and ability to produce high-quality welds. However, inappropriate welding parameters may increase the occurrence of weld defects, especially in the root penetration area of V-groove butt joints. This study aimed to evaluate the relationship between root gap and welding voltage variations and weld quality in the GMAW process, as well as to identify the best welding parameter combination among the tested conditions. This research employed a quantitative descriptive approach using an experimental design. S355J2C+N steel plates with V-groove butt joints were used as the test material. The welding parameters consisted of two root gap variations (2 mm and 3 mm) and three welding voltage levels (17 V, 18 V, and 19 V). Weld quality was evaluated using Non-Destructive Testing (NDT), including Visual Testing (VT) and Penetrant Testing (PT). The Fisher Exact Test indicated that neither root gap variation nor welding voltage variation had a significant relationship with the Visual Testing and Penetrant Testing results (p > 0.05). Based on the descriptive analysis, the combination of a 2 mm root gap and 18 V welding voltage produced the best weld quality among the tested specimens, with no discontinuities detected during Visual Testing and only one acceptable porosity indication identified during Penetrant Testing. These findings indicate that this parameter combination performed best under the experimental conditions of this study.
Co-Authors Eli Novita Sari Kadir, Aini Zuhra Binti Abdul Lintang Firdaus Romadhoni M.Fauzi Soulton Muhammadanis Naufal Akif Rico Wahyu Pratama Siti Duratun Nasiqiati Rosady Syamsul Hadi Talifatim Machfuroh Tri Setyo Aji Cahyono Vany Ramadhany Zakiyah Amalia