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All Journal Rotasi Media Kesehatan Masyarakat Indonesia Jurnal Simetris Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Rekayasa Mesin EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA Loquen: English Studies Journal Jurnal Pendidikan Matematika (Kudus) JURNAL EDUCATION AND DEVELOPMENT Lisanul Arab: Journal of Arabic Learning and Teaching Jurnal Ilmiah Akuntansi dan Bisnis Infotekmesin Jurnal Teknologi dan Riset Terapan (JATRA) Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Ta'lim al-'Arabiyyah: Jurnal Pendidikan Bahasa Arab dan Kebahasaaraban V-MAC (Virtual of Mechanical Engineering Article) Jurnal Profesi Insinyur Universitas Lampung Jurnal Minfo Polgan (JMP) Journal of Natural Science and Technology Adpertisi: Bidang Sains dan Teknologi Academic Journal Perspective : Education, Language, and Literature MIYAH: Jurnal Studi Islam Journal of Applied Community Engagement (JACE) Innovative: Journal Of Social Science Research Lok Seva: Journal of Contemporary Community Service Buletin Ilmiah Ilmu Komputer dan Multimedia (BIIKMA) Jurnal Pengabdian Dinamika Jurnal Medika: Medika Komdimas
Rahman Hakim
Sultan Ageng Tirtayasa University, Banten
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : Rekayasa Mesin

 1 
Project-Based Learning for the Design of Progressive Dies Supporting Tools Hakim, Rahman; Widiastuti, Hanifah; Wijayanti, Ita; Muvariz, Mufti Fathonah; Silaban, Andre Kevil
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/10.21776/ub.jrm.2021.012.01.13

Abstract

In the oil and gas industry, manufacturing processes covered a variety of fields including pipe fittings production. Generally, this process involves a press machine utilized as a shape forming using punch-dies sets as mold profiles. The common problem found with the dies is the dimension of dies is not ergonomics to be handled manually by operators. Additionally, the support of dies tends to experience buckling upon receiving a pressure load of 15 MPa. Hence, alternative and practical designs are required, which have low deflection values and high fatigue resistance rates. Additionally, the designs are expected to be safe and economical. In this study, two alternative designs of punch-dies support are proposed. Subsequently, the FEA simulation was carried out for pipe fittings of 8 inches with ASME B16.9 standard size for WF Beam A36 Steel to compare the two proposed designs. The results show that alternative design 2 has a lower deflection value of 0.181 mm, a higher Factor of Safety of 3.21, and a higher cycle time of 358569 cycles than alternative design 1. Nevertheless, alternative design 2 has a higher production cost of 220 USD compared to alternative design 2. Therefore, this study shows that alternative design 2 has better performance while alternative design 1 is more economical.
Pengembangan Alat Bantu Arbor untuk Pembuatan Roda Gigi pada Mesin Frais Vertikal Widodo, Widodo; Hakim, Rahman
Jurnal Rekayasa Mesin Vol 12, No 2 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.02.6

Abstract

The machining process is included in the classification of metal cutting processes, which are used to change the shape of metal or non-metallic product by cutting, peeling or separating. One of the machines used in this cutting process is a vertical type milling machine. This machine functions to make a product, one of which was a gear. The supporting equipment needed to make this gear was a vertical arbor tool. The material used in the manufacture of this product was a cast carbon steel type using the design method for manufacturing and assembly (DFMA), which began by examining and identifying needs, conceptualizing and designing products and making these products tailored to the dimensional specifications of standard and common cutter modules in the market.  The results of the manufacture of this tool were directly tested for the manufacture of gears of various sizes and produced products whose deviations were within the tolerance of the measuring instrument, namely in the range 0 to 2%. In addition, the von Mises stress simulation at an engine speed of 150 Rpm, 450 Rpm and 750 Rpm and the resulting maximum stress was still below the yield limit, so it was safe to use.
SIMULATION-BASED ANALYSIS FOR OPTIMIZING MOLD DESIGN OF PLASTIC HARDNESS TEST SPECIMENS USING KEY PARAMETERS Pujo Leksonowati, Nur Fitria; Pamungkas, Nurman; Manurung, Meilani; Aryswan, Adhe; Hakim, Rahman; Stefani, Windy; Purba, Adi; Khollilurrahman, Kholillurrahman; Batubara, Ninda
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.1945

Abstract

This study aims to compare the performance of two injection molding designs—Design A and Design B—for producing plastic hardness test specimens. Design A showed a fill time of 1.03 s and cooling quality covering 84.2% of the part, compared to 1.06 s and 72.4% for Design B. Design B, however, exhibited deflection of 0.96 mm versus 1.15 mm for Design A, and a maximum sink mark depth of 0.5687 mm versus 0.5773 mm. These characteristics in Design B support dimensional stability and limit visible defects, making it suitable for fabrication. Optimization strategies, such as adjustments to packing pressure, gate location, and the cooling system, are proposed to improve Design B's performance in terms of production efficiency and quality. The results indicate that, despite advantages in Design A, Design B offers a viable option for large-scale injection molding, balancing quality and operational efficiency.
PERANCANGAN DAN MODIFIKASI MOLD INSERT UNTUK MENINGKATKAN KAPASITAS PRODUKSI LIGHT GUIDE Irawan, Benny Haddli; Septaningrum, Putri; Wijayanti, Ita; Hakim, Rahman; Saputra, Ihsan
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1457

Abstract

The use of plastic is often found in human life. Therefore, many manufacturing companies are competing to increase the production and quality of their plastic products. One way to increase production is to redesign a Mold base so that the Mold has a larger production capacity than before. The increase in product demand from consumers, which was initially 65,000 pcs/month to 95,000 pcs/month, is also the background for conducting this research. The purpose of this study is to redesign the soft tool using the old Mold base. The design uses Siemens UG NX 5 software. The Mold used is a two-plate Mold. The manufacture of the core cavity uses NAK 80 steel and plastic raw material in the form of Polycarbonate (PC). At the end of the study, a simulation was carried out using the Moldex 3D Flow Mold software to see the cycle time of the old and new Mold injection processes. From the results of this study, production capacity increased from 67,804 pcs/month to 118,536 pcs/month resulting in twice as many products as the old Mold design, with an increase in cycle time of 14.37% longer than the old Mold design also ensuring the quality of the product is maintained.
INNOVATIVE DESIGN AND FABRICATION OF FIXTURES FOR ENHANCED ULTRASONIC TESTING Hakim, Rahman; Hapsari, Windi; Irawan, Benndy Haddli
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1925

Abstract

Ultrasonic Non-Destructive Testing (UT) is essential in manufacturing to ensure measurement accuracy by calibrating tools against specified standards. However, UT calibration often faces challenges such as oil spills, usability issues, and lengthy processes. This study addresses these challenges by designing a specialized fixture to streamline the calibration of a 33.8 kg cylindrical UT calibration block. The fixture's design focuses on user requirements, enabling smooth block rotation and effective oil management during calibration. Key design principles were applied, including Degrees of Freedom (DoF) and locating and clamping mechanisms. Finite Element Method (FEM) simulations demonstrated a maximum stress value of 18.495 MPa and a Factor of Safety (FoS) of 22.89, confirming the fixture’s structural reliability. The proposed fixture reduced calibration cycle time by 48.7%, significantly enhancing efficiency. In conclusion, the fixture offers a safe, practical, and effective solution to optimize UT equipment calibration.
Co-Authors Abdi Virgiansyah, Ferdinand Abi Fadila Adhe Aryswan Adiguna, Patria Af'idah, Euis Nur Afriantoro, Irfan Ahmad Marsehan Alfarizi, Tito Almada, Yoga Alfin Alwi, Abdullah Ardiansah, Ardiansah Arrafi, Bintang Azimah, Nahdliyyatul Baharudin, Budi Barcelona, Susi Batubara, Ninda Danang Cahyagi Dhikriana, Mifta Rina Diah Wilujeng, Auliana Dwi Syafitri, Khairunisa Fachry Abda El Rahman Fatah, Misbakhul Felani, Rani Okta Ghosoun Joumaa Gustin, Oktaviano Handayani, Aprinia Hanifah Widiastuti Hapsari, Windi Harahap, Andes Fuady Dharma Hartati, Aprya Duwi Hartono, Ricci Hasan, Sayyid Herlyansah, Reynaldi Bintang Hermana, Rifki Ihsan Saputra Irawan, Benndy Haddli Irawan, Benny Haddli Isbandiyah Isbandiyah Ita Wijayanti Julianti, Devi Khollilurrahman, Kholillurrahman Lubis, Hendri Arifin Maasah, Nur Alifah Manurung, Meilani Maskarai, Abulija Mastianna, Mastianna Matondang, Muhammad Roihan Mega Gemala Merlina Sari Mohamad Alif Dzulfiqar Mufariz, Mufti Fathonah Mufti Fathonah Muvariz Muh. Azis Albar J. Nasution, Sayyid Al Fattah Naufal Abdurrahman Prasetyo Noorhayaati, Siti Mahmudah Nugraha, M Affan Nur Abiyad, Muliawan Nur Fitria Pujo Leksonowati Nuraliza, Nuraliza Nurhalisah, Siti Nurmaini Ginting Nurman Pamungkas Nurmi, Aisyah Nurul Laili Nurul Ulfah Oktavianto Gustin Pikarani, pikarani Pramana, Rangga Pratama Putra, Vicqi Priyanto, Hasan Purba, Adi Putri, Naila Rahmawati, Eri Ratna Wulan Sari Reynaldi, Muhammad Ryan Rima, Rosmania Ritonga, Mina Warni Riyadi, Achmad Didi Riyama Ambarwati Rizal, Muhammad Sya'ban Fahrezi Rizki Wahyu Yunian Putra Roni Saputra Salsabilla, Krisna Tri Samsoni Sapto Wiratno Satoto Saragih, Anre Satinem Septaningrum, Putri Setyawan, Katon Galih Silaban, Andre Kevil Sinaga, Roni Rahmat Siregar, Liana Tasya Rahma Siregar, Rama Putri Solfarina, Solfarina Su'ada, Fatkhiyatus Sulaeman, Asep Arwan Supriyanto Sutisna, Nanang Ali Suwarno Suwarno Tuahena, Ihsan Wahyudi Wahyudi Widodo Widodo Windy Stefani Yogantara Yuris Setyoadi