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All Journal LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Infotekmesin
Wanto, Agus
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Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

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Pembuatan Komposit Matrik Aluminium Diperkuat Silicon Carbida Dan Rice Husk Ash Dengan Metode Metalurgi Serbuk Dylan, Arise Graafian; Sugiyarto, Sugiyarto; Wanto, Agus; Budi, Abdul; Sukanto, Sukanto
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 10 No 02 (2023): Oktober 2023
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v10i02.13481

Abstract

Brake lining components that contain asbestos are dangerous for human health, so innovation materials environmentally friendly is needed. This research aims to determine the effect of volume fraction and sintering temperature to density and hardness of recycled aluminum matrix composites, reinforced with silicon carbide and rice husk ash using the powder metallurgy method, with varying reinforcement volume fractions 10%, 15%, and 20%. The powder mixing process uses a mechanical alloying method, while the hot compaction process uses a two-way pressing method with a hydraulic pump machine compaction pressure of 6000 PSi. The sintering temperature was varied at 550°C, 580°C, 610°C. Density testing refers to Archimedes' law with the ASTM B 962-17 standard, while hardness testing uses Portable Brinel with the ASTM E110-14 standard. The density and hardness test results show that the value increases with the amount of matrix used. For samples volume fraction 90%, the highest density value is 1.72 g/cm3 and the highest hardness value is 40HB. Based on microstructural analysis, this condition occurs because the relatively low duration of the powder mechanical alloying process has resulted in agglomeration of the reinforcing powder, and the impact interlocking bond becomes lower with increasing reinforcing powder used.
Pengaruh Pemadatan Dua-arah Penekanan terhadap Densitas dan Kekerasan AMC diperkuat Serbuk Silikon Dioksida Irwansyah, Ricky; Rodika, Rodika; Wanto, Agus; Wahyudi, Mego; Wiryono, Sukanto
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1902

Abstract

The compaction method of powder metallurgy technology is an important process in influencing the density and hardness of the resulting product. This study aims to determine the effect of a one-way compaction method compared to a two-way compaction method on the density and hardness of the resulting composite product. The experimental method for making aluminum matrix composites with silica sand reinforcement applies a compaction pressure of 4500 Psi. Mixing utilizing mechanical alloying used a horizontal ball mill machine. The density test refers to the Archimedes principle with the ASTM B962-17 standard, while the Rockwell Brinel hardness test uses the ASTM E110-14 standard. The results of the sample density test of the two-way compaction method of compaction showed a higher value compared to the sample density of the one-way compaction results, respectively; values of 2.132 g/cm3 and 2.119 g/cm3. The hardness value of the sample resulting from two-way compression compaction also has a higher value than the sample hardness resulting from one-way compression compaction, respectively; worth 43.67 HRB and 36.78 HRB. Furthermore, based on the results of microstructural analysis, the interlocking bonding occurs in composite samples with two-way compaction. It is also better than the interlocking mechanical bonding in composite samples resulting from one-way compaction.
Co-Authors Budi, Abdul Dylan, Arise Graafian Irwansyah, Ricky Rodika Sugiyarto Sugiyarto Sukanto Sukanto Wahyudi, Mego Wiryono, Sukanto