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Bambang Hari Priyambodo
Mechanical Engineering Department, Sekolah Tinggi Teknologi Warga Surakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN

 1 
CHARACTERISTICS OF HARDNESS AND MICROSTRUCTURE OF RECYCLED PISTONS MANUFACTURED BY SAND CASTING PROCESS Priyambodo, Bambang Hari; Handoko; Felixtianus Eko Wismo Winarto; Amida Tri Andani; Martinus Heru Palmiyanto; Kaleb Priyanto
Jurnal Dinamika Vokasional Teknik Mesin Vol. 10 No. 2 (2025)
Publisher : Department of Mechanical Engineering Education

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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.
Co-Authors Abrori, M. Zaki Latif Achmad Nurhidayat Agung Supriyanto, Agung Amida Tri Andani Angger Bagus Prasetiyo Atmoko, Nugroho Tri Awan, Sang Alang Chamim, Moch. Demeianto Bobby Edi Cahyono Enita, Sarai Erich Maliwemu, Erich Fattah, Rauuf Nur Felixtianus Eko Wismo Winarto Hafid Febriansah Handoko Haniel, Haniel Juniawan Preston Siahaan Kacuk Cikal Nugroho Karminto Karminto Karminto, Karminto Margono Margono Margono Margono Martinus Heru Palmiyanto Martinus Heru Palmiyanto Mega Lazuardi Umar Miftakhur Rohmah Mohamad Akmal Nanda Ariyadi Priyanto, Kaleb Priyo Tri Iswanto Rauuf Nur Fattah Reni Laili Rizqi Ilmal Yaqin Rizqi ilmal yaqin, Rizqi ilmal Ryan Dhana Dyaksa Ryan Dhana Dyaksa Siahaan Juniawan Preston Sigiet Haryo Pranoto Subiyati Subiyati Sugeng Slamet Sugiyanto Sugiyanto Suhartoyo Suhartoyo Suhartoyo Suhartoyo Suhartoyo Suhartoyo, Suhartoyo Tumpu Mula Y. Yulianto Kristiawan Yanti Pasmawati Yuniar Endri Priharanto