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Faizin Muhammad Hanif
Universitas Riau Kepulauan
Aerospace Engineering Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering

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Multi-Function Press Machine Pressing, Angle Bending, And Radius Bending Umar Umar Muhammad umar; Faizin Muhammad Hanif; Wahyu Wahyu Fernando; Fardin Fardin Hasibuan
METALOGRAM Metalogram Vol.01 No.3 (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.
Corrosion Analysis and Prevention Techniques on Marine Steel Structures faizin muhammad Hanif; doan novri; Muhammad umar wibisono; dinda balqis; fardin hasibuan
METALOGRAM Metalogram Vol.02 No.3 (August,2026)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i3.8105

Abstract

Steel structures used in marine environments are highly susceptible to corrosion due to direct exposure to electrolytic seawater, as well as fluctuations in temperature and salinity. This study aims to examine the corrosion mechanisms affecting marine steel and to evaluate the effectiveness of various protection methods, including protective coatings, corrosion inhibitors, and cathodic protection systems. The research methods include corrosion rate measurement through mass loss tests, surface morphology analysis using scanning electron microscopy (SEM), and electrochemical testing using Tafel and electrochemical impedance spectroscopy (EIS). Experimental results show that the highest corrosion rate occurs in the splash zone, which undergoes frequent wet-dry cycles, with a rate of 0.35 mm per year. A cathodic protection system using magnesium anodes successfully reduced the corrosion rate by up to 80%, while a dual-layer epoxy coating demonstrated optimal protection in high-salinity environments. These findings suggest that combining coating techniques with cathodic protection is the most effective strategy for mitigating corrosion in marine steel structures, particularly in areas exposed to harsh conditions. This research contributes to the development of more efficient and sustainable corrosion protection systems in marine engineering.
Co-Authors dinda balqis doan novri Fardin Hasibuan Muhammad umar wibisono Umar Umar Muhammad umar Wahyu Wahyu Fernando