Claim Missing Document
Check
Articles

Found 14 Documents
Search
Journal : METALOGRAM

MATERIAL SELECTION AND MANUFACTURING PROCESS OPTIMIZATION OF MARINE PROPELLERS delpero, muhammad arif; Putra, Ahmadi Bintan; aminuddin, aminuddin aminuddin; hasibuan, fardin
METALOGRAM Metalogram Vol.01 No.02 (April,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.7459

Abstract

Marine propellers are essential components in ship propulsion systems, and their performance significantly impacts the overall efficiency of vessels. This paper presents a literature review on the optimization of material selection and manufacturing processes for marine propellers. The study explores the advantages and disadvantages of commonly used materials, including brass, bronze, and stainless steel, with a particular focus on their strength, corrosion resistance, cavitation resistance, and cost-effectiveness. Furthermore, the paper examines various manufacturing processes employed in propeller production, such as casting, forging, and machining, analyzing their impact on the final product's quality, precision, and performance. This review aims to provide a comprehensive understanding of the key considerations in material selection and manufacturing process optimization for marine propellers, ultimately contributing to the development of more efficient and durable propeller designs.
DEVELOPMENT AND DESIGN OF AN AUTOMATIC FABRIC CUTTING MACHINE INDUSTRY FOR THE TEXTILE Nusantara, Galang Rimba; Albaru, Agung Albaru; Tambunan, Chandly Tambunan; Hasibuan, Fardin Hasibuan
METALOGRAM Metalogram Vol.01 No.02 (April,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.7463

Abstract

This study aims to develop an economical, efficient, and precise automatic fabric cutting machine to improve productivity and quality in small to medium-scale textile industries. Traditional manual cutting methods often lead to inconsistent results, lengthy cutting times, and human error, which can hinder production efficiency. The research involves designing the machine, selecting key components, assembling the tool, and testing its performance on various fabric types. Results show that the automatic fabric cutting machine enhances cutting speed by up to 50% with consistent precision, while also reducing fabric waste caused by cutting errors. The study concludes that this machine offers a viable solution for textile industries to improve efficiency and quality at a lower cost compared to commercial machines. Further improvements are suggested to include automated pattern-cutting capabilities and better fabric compatibility.
Application Of Fcaw Welding Techniques In Supply Boat Manufacturing At Pt Vallianz Putra, Arvian Enggal; Hasibuan, Fardin
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.8160

Abstract

FCAW is a semi-automatic welding method that offers advantages in welding speed, weld quality, and flexibility in various welding positions. The process begins with equipment preparation, selecting welding parameters according to the Welding Procedure Specification (WPS) standard, and then carrying out welding using root pass, fill pass, and cap pass techniques. Evaluation of welding results is carried out through visual inspection and non-destructive testing (NDT), such as Magnetic Particle Inspection (MPI) and Ultrasonic Thickness Testing (UT) to ensure the quality and integrity of the joint. The results show that the FCAW method is highly effective in supply boat fabrication, especially when supported by good work procedures, adequate operator skills, and strict quality control. This research is expected to provide a practical overview and serve as a reference for students and industry in implementing welding technology in the shipping sector.
Performance Analysis Of Standart Camshaft Engines And Modified Camshafts On 110cc Motorcycles Derrio, Muhammad; Sihombing, Aser Eben Ezer; Ratuloli, Jumiati; Hasibuan, Fardin
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.7454

Abstract

Currently, motorcycles are the maximum extensively used approach of transportation in Indonesia. apart from being a way of transportation and for delivering items, of direction, it has unique settings from motorbikes which might be used for daily purposes via making overall performance upgrades by using modifying the noken axle (camshaft) on motorbikes which are used each day. The characteristic of the camshaft is to manipulate the valve opening, both the consumption and exhaust valves at the time decided with the aid of the four stroke engine cycle. at the changed engine, numerous adjustments have been made to several systems and components to improve the performance of the bike. The cause of this take a look at become to determine the performance of the Honda Absolute revo 110cc combustion engine which incorporates torque, strength and gasoline intake with the aid of comparing the standard camshaft and The changed camshaft which has modified the lift top by using 1mm has changed in the absolute revo 110cc engine, adjustments occur amongst them in torque, energy and greater gasoline intake enter the combustion chamber. The studies was received from a tool which can decide power called Dynotest. Dynotest serves to measure the torque strength of a motorcycle that has been modified by means of camsaft so as to understand better which is the modified camasafth and the usual camsafth on a 110cc revo absolute motorcycle.
Multi-Function Press Machine Pressing, Angle Bending, And Radius Bending Muhammad umar, Umar Umar; Hanif, Faizin Muhammad; Fernando, Wahyu Wahyu; Hasibuan, Fardin Fardin
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.7458

Abstract

The multifunctional press machine is an innovation designed to support metal fabrication processes with three main capabilities: pressing, angle bending, and radius bending. This machine can be used for steel plates with a thickness of 15 mm and a width of up to 800 mm, equipped with a hydraulic system to produce precise and stable pressure. The design process includes the design of main components, material selection, and performance testing to ensure optimal results. This machine aims to improve production efficiency, reduce waste, and produce high-quality products that meet the needs of education and industry, particularly at the University of Riau Kepulauan. Testing showed that the machine is capable of producing angle and radius formations with high accuracy. Its applications cover the automotive, manufacturing, and construction sectors, making it a multifunctional tool relevant for education, research, and small to medium-scale production.
Experimental Analysis of Resonance Behavior in a Mechanical Vibrating Beam Rizki, Muhammad Fachri; Yondra, Asraf Aulia; Yusuf, Mohammad Syaifullah; Sihotang, Angles; Hasibuan, Fardin
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.7857

Abstract

This paper presents an experimental analysis of resonance behavior in a mechanical vibrating beam. A cantilever beam made of aluminum was subjected to forced vibrations using a shaker, and the frequency response was measured with an accelerometer. Resonance frequencies for the first three modes were determined and compared with theoretical predictions based on Euler-Bernoulli beam theory. The experimental results showed excellent agreement with theoretical values, with errors less than 1%, validating the approach. This study underscores the importance of understanding resonance in mechanical structures to prevent failures due to excessive vibrations.
Toughness and Structural Analysis of Welds and HAZ of Sumerged Arc Welding on SM 490 Steel Sianipar, Stiven Ewin; hasibuan, fardin; Syaputra, Muhammad Lyan
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.8144

Abstract

The welding process is a metal joining method that utilizes high heat energy, which can trigger changes in the microstructure, deformation, and the emergence of residual stress in the area around the joint. This study aims to examine the impact of variations in heat input in the Submerged Arc Welding (SAW) process on the microstructure and toughness of SM 490 steel, especially in the weld area and heat-affected zone (HAZ). The SAW method was chosen because it has high efficiency, is easy to automate, and is able to produce good quality joints. This study used three levels of heat input, namely 2.1 kJ/mm, 3.16 kJ/mm, and 4.3 kJ/mm. Based on the test results, increasing heat input causes slower cooling, which affects the formation of microstructures such as ferrite at the grain boundary, acicular ferrite, Widmanstätten ferrite, bainite, and martensite. Acicular ferrite with fine size and interlocking pattern is known to contribute to increasing the toughness of welded joints. The maximum toughness in the weld zone, amounting to 117 Joules, was achieved at a heat input of 3.16 kJ/mm with a test temperature of 0°C. Meanwhile, the best toughness value in the HAZ of 17.5 Joules was recorded at a heat input of 2.1 kJ/mm at a temperature of -20°C. The results of this study confirm that appropriate heat input settings are very important to obtain optimal microstructure and toughness in welding SM 490 steel using the SAW method
Effectiveness Analysis Of Centrifugal Pump Maintenance System For Performance Optimization At Pt. Sumber Air Abadi pratama, yuki alvandi; Manullang, Togu Juliaman; Wibisono, Muhammad Umar; Ditoswar, Arya Mahadika; hasibuan, Fardin
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.7971

Abstract

This paper analyzes the centrifugal pump maintenance system and its impact on the effectiveness of pump performance at Perusahaan Sumber Air Abadi. The study identifies current maintenance practices, evaluates their effectiveness in preventing failures and optimizing pump operation, and proposes improvements for better system reliability and efficiency. Data were collected from maintenance records, pump performance, and personnel interviews. The findings indicate key areas for improvement in preventive maintenance scheduling, spare parts management, and personnel training. Implementation of these recommendations is expected to improve pump performance, reduce downtime, and contribute to the company's overall operational efficiency. The main focus is on the transition to a proactive maintenance culture through technology adoption and continuous skills development.
The Effect Of Vibration On User Comfort In Motor Vehicles pratama, yuki alvandi; munif, moh. abdul; delpero, M arif; siallagan, rama roki; Hasibuan, Fardin
METALOGRAM Metalogram Vol.02 No.01 (December,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.7972

Abstract

Vibration is an unavoidable physical phenomenon in motor vehicle operation and is a dominant factor affecting user comfort. Excessive and prolonged exposure to vibration can trigger various negative responses in humans, ranging from fatigue and physiological discomfort to long-term health risks such as musculoskeletal and neurological disorders. This paper presents a comprehensive review of the effects of vibration on the comfort of motor vehicle users. The discussion includes the identification of vibration sources (internal and external), the mechanisms of vibration transmission through the vehicle structure, and the biomechanical response of the human body to whole-body vibration (WBV). In addition, this paper reviews vibration measurement and analysis methods based on international standards, analyzes the physiological and psychological impacts of vibration, and discusses vibration mitigation strategies applied in modern vehicle design, including passive, semi-active, and active suspension systems, as well as ergonomic seat design. Case studies of mitigation technology applications are also included to provide a practical overview. Finally, this paper identifies existing challenges and future research directions in an effort to improve vehicle user comfort and well-being.
Experimental Study of Mechanical Vibrations in Vehicle Suspension Systems Khoeriyah, Nafisatul Khoeriyah; barimbing, Ivan mangisara; Andreas silalahi, Jhon Nico; Saputra, Ariel; Hasibuan, Fardin; Irsyam, Muhammad
METALOGRAM Metalogram Vol.02 No.01 (December,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.7809

Abstract

This study reviews and analyzes vertical vibrations in the suspension system of passenger vehicles, focusing on the McPherson strut configuration. By synthesizing findings from previous experimental research employing vibration test benches like the UKA-3.5E, the dynamic response of suspensions under varying frequencies and tire inflation pressures is examined. Results indicate that tire pressure significantly influences vibration amplitude and duration, aligning with theories that model tire stiffness as a parallel spring element affecting overall suspension dynamics. The analysis also highlights the effectiveness of multi-sensor approaches, including proximity sensors and load cells, in capturing real-time vibrational behavior. Understanding these relationships is vital for optimizing suspension performance and developing strategies to reduce vibrations, thereby improving vehicle stability, occupant comfort, and safety.