CHARACTERISTICS OF HARDNESS AND MICROSTRUCTURE OF RECYCLED PISTONS MANUFACTURED BY SAND CASTING PROCESS

Authors

  • Bambang Hari Priyambodo Department of Mechanical Engineering, Universitas Gadjah Mada, Indonesia
  • Handoko Department of Mechanical Engineering, Vocational School, Universitas Gadjah Mada, Indonesia
  • Felixtianus Eko Wismo Winarto Department of Mechanical Engineering, Vocational School, Universitas Gadjah Mada, Indonesia
  • Amida Tri Andani Department of Mechanical Engineering, Vocational School, Universitas Gadjah Mada, Indonesia
  • Martinus Heru Palmiyanto Mechanical Engineering Education Department, Universitas Negeri Yogyakarta, Indonesia
  • Kaleb Priyanto Mechanical Engineering Education Department, Universitas Negeri Semarang, Indonesia

Keywords:

Recycled piston, Vickers hardness, Piston waste, Sand casting, Microstructure

Abstract

Motorcycle piston waste, made from aluminum, is often poorly managed despite its advantages in corrosion resistance and thermal conductivity. This study aims to enhance the economic value of piston waste through recycling using the sand casting method. The melting process was conducted at a temperature of 843°C, followed by casting into sand molds. The recycled product is intended for use as a ship propeller component. Tests performed included Vickers hardness testing and microstructural analysis to evaluate the mechanical properties and material characteristics. The results showed that the recycled material exhibited an average hardness of 77.2 kg/mm², consistent with standard aluminum hardness. Microstructural analysis revealed the presence of porosity which may affect mechanical strength; however, this porosity did not reduce the material's resistance to mechanical damage and provided good toughness. Based on these findings, it can be concluded that motorcycle piston waste recycled by sand casting at 843 °C has potential for use in manufacturing high-value components such as ship propellers, considering the hardness quality and microstructural characteristics of the material.

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Published

2025-10-30

How to Cite

Priyambodo, B. H., Handoko, Felixtianus Eko Wismo Winarto, Amida Tri Andani, Martinus Heru Palmiyanto, & Kaleb Priyanto. (2025). CHARACTERISTICS OF HARDNESS AND MICROSTRUCTURE OF RECYCLED PISTONS MANUFACTURED BY SAND CASTING PROCESS. Jurnal Dinamika Vokasional Teknik Mesin, 10(2). Retrieved from http://journal.uny.ac.id/index.php/dynamika/article/view/86156

Issue

Vol. 10 No. 2 (2025)

Section

Articles

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