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All Journal Integrated Science Education Journal Prosiding Seminar Nasional Inovasi Teknologi Terapan
Ariyanto Ariyanto
politeknik manufaktur negeri bangka belitung
Computer Science & IT Education Electrical & Electronics Engineering Mechanical Engineering Social Sciences

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ANALISIS PENGARUH TEMPERATUR DAN MEDIA PENDINGIN TERHADAP SIFAT KEKERASAN DAN KETANGGUHAN BAJA S45C PADA PISAU CRUSHER Bagus Ilham Pramudya; Ariyanto Ariyanto; Husman Husman
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

The crusher blade is the part that is used to decompose plastic waste. The crusher blade needs to be worked on to change the mechanical properties of the material to maintain resistance, namely by working on the heat treatment process. In this study, the researcher used steel material with JIS S45C grade of medium steel. Researchers will vary the hardening temperature, namely 800°C, 840°C, 880°C with cooling media using salt water, oil, and sea water. then proceed with the tempering process with a temperature of 500°C. The tests in this research are hardness testing and toughness testing. The purpose of this study is to find the highest optimal value and find out which variables have the most influence on the results. From the results of hardness testing, the highest value is found in salt water with a temperature of 880°C at 36.86 HRC and for toughness testing which has the highest value is found in oil cooling medium with a temperature of 800°C at 1.2015 joule/, and of the two variables that have the most influence on the results of hardness and toughness testing, namely the cooling medium.
Effect of Heat Treatment and Tempering Process on the Hardness of S55c Steel as A Cutting Blade Material for Plastic Shredding Machines Eko Yudo; Ariyanto Ariyanto; Erwansyah Erwansyah; Zaldy Sirwansyah Suzen; Sugiyarto Sugiyarto; Yuli Dharta; Zulfitriyanto Zulfitriyanto
Integrated Science Education Journal Vol 7 No 1 (2026): January
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v7.i1.2461

Abstract

Purpose of the study: This study aims to optimize the heat treatment process of S55C medium-carbon steel by examining the combined effects of austenitizing temperature, quenching media, and tempering temperature on impact toughness. Methodology: An experimental approach was employed using quenching and tempering treatments. Quenching was performed at three austenitizing temperatures (950°C, 1000°C, and 1050°C) with three different cooling media—salt water, oil, and seawater—followed by tempering at 100°C, 200°C, 300°C, and 400°C. All heating processes were conducted in an electric furnace. Parameter optimization was carried out using the Taguchi method with an L9 orthogonal array. Mechanical performance was evaluated through Charpy impact testing, and confirmation experiments were conducted to validate the optimal parameter combination. Main Findings: The Taguchi analysis identified the optimal quenching condition at an austenitizing temperature of 1050°C with salt water as the cooling medium, yielding the highest impact toughness. Confirmation tests supported the reliability of this result. Additionally, the tempering process showed that increasing the tempering temperature decreased hardness while significantly improving toughness, indicating effective stress relief and improved ductility in the steel microstructure. Novelty/Originality of this study: The novelty of this study lies in the integrated optimization of quenching temperature and diverse cooling media, including seawater, using the Taguchi method, with a specific focus on toughness rather than hardness alone. This research provides new insights into tailoring heat treatment parameters for S55C steel to achieve superior impact resistance, offering practical guidance for more efficient and application-oriented heat treatment strategies in manufacturing industries.
Co-Authors Bagus Ilham Pramudya Eko Yudo Erwansyah, Erwansyah Husman Husman Sugiyarto Sugiyarto Suzen, Zaldy Sirwansyah Yuli Dharta Zulfitriyanto Zulfitriyanto