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Ekki Andika
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Pengaruh Carburizing Arang Tulang Sapi Terhadap Peningkatan Kekerasan Egrek Produk Pande Besi Desa Tanjung Pinang Sailon Sailon; Dicky Seprianto; Ekki Andika
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT 14022022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7265865

Abstract

The egrek must have a tough hardness in the eyes of the egrek, but the craftsman there is criticism by consumers regarding the quality of his sharpness and toughness, therefore. The purpose of this study is to determine the effect of carburizing cow bone charcoal on increasing the egrek hardness of blacksmith products in Tanjung Pinang Village. This research method is a pack carburizing experiment using cow bone charcoal with temperature variations of 850°C, 900 °C, and 950°C and a containment time of 30 minutes, 45 minutes, and 60 minutes. The results of this study prove that the composition of the egrek material of blacksmith products with an elemental carbon value of 0.414% and pack carburizing using cow bone charcoal affects the hardness, the top surface hardness value at a temperature variation of 950°C with a 60-minute containment time of 59.2 HRC. Temperature is very influential in carrying out pack carburizing against the increase in surface hardness.
PENGARUH FRAKSI VOLUME DAN ORIENTASI PADA KOMPOSIT SERAT GAMBAS SERTA TEBU TERHADAP KEKUATAN BENDING Ahmad Zamheri; Dicky Seprianto; Sailon Sailon; Hopay Tamilio; Ekki Andika; Rizki Ramadoni
AUSTENIT Vol. 15 No. 1 (2023): AUSTENIT 15012023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7882133

Abstract

The purpose of this study is to determine the influence of volume fractions and orientation directions on the composite of gambas fiber and sugarcane fiber on bending strength. In this study, the variation in the volume fraction of resin, gambas fiber, and sugarcane fiber was (Resin 60%: Sugarcane Fiber 20%: Gambas Fiber 20%), (Resin 70%: Sugarcane Fiber 15%: Gambas Fiber 15%), and (Resin 80%: Sugarcane Fiber 10%: Gambas Fiber 10%) with the orientation direction of gambas fiber and sugarcane fiber 90°/90°, 90°/45°and 90°/0°. In this test, the bending test specimen was made according to the ASTM D 790-02  standard and the test result data were analyzed using the Two-Way ANOVA method assisted by Microsoft Exel software. This study showed that the volume fraction (Resin 60%: Sugarcane Fiber 20%: Gambas Fiber 20%) and the orientation direction of gambas fiber and sugarcane fiber 90°/90° have  the best bending strength  which is 48.33 (N/,) this value is higher than that of Multiplex with a bending strength value of  26,60 MPa.
Co-Authors Ahmad Zamheri Dicky Seprianto Hopay Tamilio Rizki Ramadoni Sailon Sailon