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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN)
Naim, Raihan Deprija
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Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Perbandingan Sifat Mekanis Material Logam dalam Industri Manufaktur Zandroto, Dian Ayu Aulia; Naim, Raihan Deprija; Riawan, Ibnu Azmi
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.55283

Abstract

This research aims to analyze the mechanical properties of metal materials produced using various manufacturing techniques, both conventional and additive manufacturing (AM) technologies such as SLM, WAAM, and EBM. The main focus of this study is to evaluate the influence of microstructure and porosity on the tensile strength, stiffness, ductility, and fatigue resistance of these materials. The research method used is a comparative experimental study, collecting data from the latest literature and laboratory test results on materials such as high-strength steel, aluminum alloys, and composites. Research findings indicate that the use of innovative materials can improve production efficiency and vehicle performance, with some AM materials exhibiting higher strength despite a sacrifice in flexibility. The recommendation for this research is to optimize material selection based on application and more efficient manufacturing processes.
Analisis Tren Harga Aluminium, Tembaga, dan Nikel 2015–2025 serta Implikasinya terhadap Biaya Material Manufaktur Ramadhan, Gilang; Riawan, Ibnu Azmi; Naim, Raihan Deprija
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.55298

Abstract

This research analyzes the price trends of aluminum, copper, and nickel during the period 2015–2025 and their implications for the cost of manufacturing materials in Indonesia. This study examines the increasing volatility of global metal prices, which directly impacts the cost structure of the manufacturing industry. The research aims to identify price change patterns for the three metals and examine their impact on manufacturing material costs. This research uses a quantitative approach with secondary data consisting of metal prices from the London Metal Exchange and Kitco Metals, as well as sales and material cost data from national metal distribution company reports. The analysis was conducted using descriptive analysis and multiple linear regression. The research findings indicate that the increase in metal prices, particularly after 2020, has a significant impact on the rise in manufacturing material costs, with nickel exerting the greatest cost pressure. This research recommends strengthening the downstream metal industry to reduce dependence on global price fluctuations.
Co-Authors Gilang Ramadhan Riawan, Ibnu Azmi Zandroto, Dian Ayu Aulia