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All Journal Rekayasa Mesin INTEK: Jurnal Penelitian Jurnal Pengabdian Multidisiplin Journal of Mechanical and Electrical Technology Asian Journal Science and Engineering GEMBIRA (Pengabdian Kepada Masyarakat) Journal of Mechanical Engineering
Lisa Agustriyana
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya
Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Other

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Journal : Asian Journal Science and Engineering

 1 
Optimizing Flexibility in SUP9 Leaf Springs: The Synergistic Effect of Tempering Temperature and Holding Time Kris Witono; Agustriyana, Lisa; Hadi Susilo, Sugeng
Asian Journal Science and Engineering Vol. 4 No. 1 (2025): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v4i1.1886

Abstract

This study investigates the influence of tempering temperature and holding time on the flexibility of SUP9 steel leaf springs, addressing a practical need for enhanced vibration absorption in heavy-duty vehicles operating on irregular terrain. An experimental study was conducted using a full factorial design with three temperature levels (450°C, 550°C, 650°C) and three holding times (15, 20, 25 minutes). Flexibility was quantified by measuring the maximum deflection in a three-point bending test. The results demonstrate a strong, positive correlation between the tempering parameters and flexibility. The optimal flexibility (47.76 mm deflection) was achieved at the highest treatment condition of 650°C with a 25-minute holding time, representing an 83% improvement over the least effective treatment. ANOVA results confirmed that temperature, holding time, and their interaction are all statistically significant factors (p < 0.05). These findings provide a practical, data-driven guideline for manufacturing more resilient and comfortable leaf springs by optimizing heat treatment protocols.
Co-Authors Aji , Supa Kusuma Akhlis Rizza, Muhammad Amalia, Zakiyah Etik Puspitasari, Etik Hadi Susilo, Sugeng Haris Puspito Buwono Kris Witono Kurniawan, Rozaq Monasari, Ratna Muzaki, Mochamad Nurchajat, Nurchajat Ramadhani, Muh. Samsul Hadi Siti Duratun Nasiqiati Rosady Subagiyo Subagiyo Sugiarto S Syamsul Hadi Talifatim Machfuroh, Talifatim Yudi Suryawan Zakki Fuadi Emzain