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All Journal Jurnal Dimensi Riau Journal of Empowerment Minda Baharu SIGMA TEKNIKA Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Indonesian Journal of Electrical Engineering and Renewable Energy (IJEERE) METALOGRAM
Fardin Hasibuan
UNIVERSITAS RIAU KEPULAUAN
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Thermal Optimization of Aluminium Fishing Sinker Mold Using Cooling Channel Design Arifin, Yahya Hafiizh; Putra, Akhri Ramadhan; hasibuan, fardin; Irsyam, Muhammad
METALOGRAM Metalogram Vol.2 No.2 (April, 2026)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i2.8849

Abstract

Thermal performance of mold plays a critical role in determining the quality and productivity of aluminium casting products, including fishing sinkers. Improper temperature distribution within the mold can lead to casting defects, uneven solidification, and extended cooling time. This study focuses on the thermal optimization of an aluminium fishing sinker mold through the design and improvement of cooling channel configurations. Numerical simulations based on heat transfer analysis are conducted to evaluate temperature distribution, cooling efficiency, and solidification behavior within the mold. Several cooling channel designs are analyzed and compared to identify the most effective configuration for achieving uniform temperature distribution and enhanced heat dissipation. The results show that optimized cooling channel design significantly reduces temperature gradients, shortens cooling time, and improves overall casting quality. This study demonstrates that thermal optimization through proper cooling channel design is an effective approach to enhancing the performance and reliability of aluminium fishing sinker molds.
Analysis of the Performance of the Liquid Cooling System on the Thermal Efficiency of Honda Vario 125 Motorcycle Mahariyanto, Kiki Dwi Putra; Rinaldy, Habib; Siburian, Subayu; Hasibuan, Fardin; Ritonga, Oloan; Safi'i, Ilham; Suharjo, Tanto
METALOGRAM Metalogram Vol.2 No.2 (April, 2026)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i2.8851

Abstract

This study discusses the performance of the liquid cooling system on the Honda Vario 125 motorcycle to understand its effect on the thermal efficiency of the engine during operation. The liquid cooling system plays a role in keeping the engine temperature stable, so that the combustion process takes place more effectively. The test was carried out by taking data on cylinder head temperature, coolant temperature, and fuel consumption at various engine rev levels. The data obtained is analyzed to assess the ability of the cooling system to reduce temperature rise and keep the engine at an optimal working range. The results show that at medium to high cycles, liquid cooling systems are able to maintain temperature stability with relatively small fluctuations. These more stable thermal conditions contribute to improved combustion efficiency which is reflected in decreased specific fuel consumption and increased thermal efficiency. These findings indicate that the cooling system design on the Honda Vario 125 has adequate capabilities to maintain consistent engine performance, especially in daily use with load variations. This study can be a technical reference in the development of motor vehicle cooling systems.
Effect of CO₂ and Argon Gas Shielding on GMAW Welding Joint Quality Ma'asya, Safira; Alfharizi, Muhammad; Manullang, Togu Julianman; Tawaris, Andrean Bastian; Hasibuan, Fardin; Irsyam, Muhammad
METALOGRAM Metalogram Vol.2 No.2 (April, 2026)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i2.7866

Abstract

This study aims to evaluate the effect of shielding gas types, namely carbon dioxide (CO₂) and argon, on the quality of welded joints in the Gas Metal Arc Welding (GMAW) process with low carbon steel as the base material. The research method was carried out experimentally using a steel plate measuring 150 mm × 75 mm × 6 mm and an ER70S-6 electrode wire with a diameter of 1.0 mm. The welding process was carried out with an inverter-type GMAW machine using fixed parameters: 120 ampere current, 22 volt voltage, 4 mm/s welding speed, 12 mm stick-out distance, and 15 liters per minute shielding gas flow rate. The specimens were divided into two groups based on the shielding gas, namely pure CO₂ and pure argon. Evaluation of the joint quality was carried out through tensile tests, Vickers hardness tests on three main zones (weld metal, heat affected zone, and base metal), as well as microstructure and visual observations. The results showed that the specimens with argon gas had a higher average tensile strength (460 MPa) than CO₂ (420 MPa). The hardness values were also higher and more even in the argon specimens, with a finer and more uniform microstructure. In conclusion, the use of argon produces welds with better mechanical and metallurgical qualities than CO₂. Therefore, argon is more recommended for welding low carbon steels that require high strength and precision.
Evaluation of Thermal Spray Aluminum Coating Implementation Based on Procedure Qualification Test (PQT) Inspection Data for Offshore Steel Structures Ani, Fitri; Hasibuan, Fardin; Putra, Dwi Cahyadi
METALOGRAM Metalogram Vol.2 No.2 (April, 2026)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i2.8881

Abstract

Thermal Spray Aluminum (TSA) coating is widely applied for corrosion protection of offshore steel structures operating in aggressive marine environments. In practical offshore projects, the quality of TSA coating implementation is primarily verified through inspection activities conducted during Procedure Qualification Tests (PQT). In this study, an inspection-based evaluation of TSA coating implementation was performed using documented PQT inspection records obtained from an offshore steel structure, without additional laboratory testing. TSA coating was applied using a twin wire electric arc spray process, and coating quality was assessed based on dry film thickness (DFT) measurements recorded at five inspection points. The measured DFT values ranged from 216 µm to 357 µm, with an average thickness of 284.8 µm. To ensure general applicability, the thickness distribution was interpreted using inspection-derived statistical indicators, including a thickness uniformity index and coefficient of variation. The results indicate a uniform coating build-up and stable application characteristics typical of arc-sprayed aluminum coatings. It is concluded that PQT inspection data provide a practical and reliable basis for evaluating TSA coating implementation and thickness consistency in offshore steel structure applications.
Pembuatan alat pendeteksi dan pengusir monyet secara otomatis di areal pertanian Desa Sugie Kabupaten Karimun Fernando, Wahyu; Hasibuan, Fardin; Irsyam, Muhammad; Kurniawan, Harry; Syaputra, Muhammad Lyan; Delpero, M Arif; Supriyadi, Supriyadi
Riau Journal of Empowerment Vol 8 No 1 (2026)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/raje.8.1.25-34

Abstract

An automatic monkey detection and repellent system based on a Convolutional Neural Network (CNN) and a Raspberry Pi was developed to address crop damage caused by monkeys in Sugie Village, Karimun district. The system uses a webcam to detect monkeys within a radius of up to 50 meters and emits gunshot sounds audible up to 200 meters to automatically repel them. Solar panels power the system because the area has access to electricity only at night. The implementation of this device yielded significant results, reducing crop damage from an average of 9 damaged plants per visit to only 3, equivalent to a 66.7% decrease. Additionally, the solar panels provided lighting for the agricultural area, improving security and accessibility at night by 100%. This technology offers an effective and efficient solution compared to manual methods, which require constant monitoring. The project leverages modern innovation relevant to local needs by integrating renewable energy with image-based detection technology. This project has the potential to be replicated in other regions facing similar issues, supporting food security and improving rural communities.
Co-Authors Adlinizar, Muhammad Fahrell Adriansyah, Muhamad Akramunnas, Bastul Wajhi Albaru, Agung Albaru, Agung Albaru Alfharizi, Muhammad amiko, amiko aminuddin, aminuddin aminuddin Andreas silalahi, Jhon Nico ardiansyah, Edo Arif Rahman Hakim Arif Rahman Hakim Arifin, Yahya Hafiizh Balqis, Dinda barimbing, Ivan mangisara Borutnaban, Bernath Matheus Delpero, M Arief delpero, M arif delpero, muhammad arif Derrio, Muhammad Ditoswar, Arya Mahadika Efiano, Eddy Ezer Sihombing, Aser Eben faturahman, noval Fernando, Wahyu Fernando, Wahyu Wahyu Fitri Ani, Fitri Gusman, Beny Hafiz, Abdul Hanif, Faizin Muhammad Harry Kurniawan Irsyam, Muhammadd Irvan Afriandi Khoeriyah, Nafisatul Khoeriyah Kirana, Dois Dita Wahyu kuniawan, Muhammad iman Kusuma, Bagus Liston, Sony Ma'asya, Safira Mahariyanto, Kiki Dwi Putra Manullang, Togu Juliaman Manullang, Togu Julianman Muhammad Irsyam, Muhammad Muhammad umar, Umar Umar munif, moh. abdul Nugroho Pratomo Ariyanto Nulhakim, Buyung Nusantara, Galang Rimba Pandi, Soe Parendi, Yoga pratama, yuki alvandi Putra, Ahmadi Bintan Putra, Akhri Ramadhan Putra, Arvian Enggal Putra, Deny Jaya Putra, Dwi Cahyadi Putra, Wendri Ratuloli, Jumiati Rinaldy, Habib Ritonga, Oloan Rizki, Muhammad Fachri Safi'i, Ilham Saputra, Ariel Sena, Boni siallagan, rama roki Sianipar, Stiven Ewin Siburian, Subayu Sihombing, Aser Eben Ezer Sihotang, Angles Sitio, Joni Mart Suharjo, Tanto Supriyadi Supriyadi Syaputra, Muhammad Lyan Syaputra, Robby Yandri Tambunan, Chandly Tambunan Tarigan, Joy Adithia Tawaris, Andrean Bastian Toni Kusuma Wijaya, Toni Kusuma Tri Jaya Widagdo Wajhi Akramunnas, Bastul Wibisono, Muhammad Umar Widagdo, Trijaya Yondra, Asraf Aulia Yosua Luis Vigo Sitompul, Yosua Luis Vigo Yulianta, Eka Chandra Yunasri, Yunasri Yusuf, Mohammad Syaifullah