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Delfian Prihadianto, Braam
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Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

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Pengaruh Besar Butir dan Temperatur Pemanasan Pasir Cetak Terhadap Sifat Mekanis Cetakan Delfian Prihadianto, Braam; Krisnaputra, Radhian; Darmo, Suryo; Prabowo, Aldi
Infotekmesin Vol 12 No 1 (2021): Infotekmesin: Januari 2021
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v12i1.471

Abstract

Casting is a manufacturing process that uses molten metal and molds to obtain a product that is closer to its final geometry. The quality of casting products is influenced by several factors and one of the important factors is the mold. The sand that is often used in making molds is resin coated sand, since this sand will bond to one another if it is heated. The research focus is determine the effects of grain size and heating temperature of resin coated sand on the mechanical properties of the mold which include compressive, shear and tensile strength. This study used an experimental method with large parameters of resin coated sand and heating temperature. From the test results, the highest compressive, shear and tensile strength values are Produced by sand with grain size less than 300 µm are identified.. The high heating temperature makes the bonds between the sands stronger and the strength value is higher..
Analisis Lifetime Dan Kerusakan Rear Leaf Spring Truk Iveco AD 410 Untuk Meningkatkan Ketepatan Perencanaan Penggantian Imam Yusuf, Muhammad; Delfian Prihadianto, Braam
Infotekmesin Vol 13 No 1 (2022): Infotekmesin: Januari, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i1.1055

Abstract

Components in a unit have a certain lifetime, therefore maintenance and rejuvenation are needed to maintain performance, including leaf springs. The rear leaf spring component replacement of the Iveco AD 410 truck unit in the MIFA Project was not conducted as scheduled. The purpose of this study is to improve the planning accuracy of the rear leaf spring component replacement for the Iveco AD 410 truck on the MIFA Project. The methods used in this study were qualitative and comparative quantitative method and also reliability centered spares using the normal distribution processing method. The test data used were work order data for 2018-2020 and replacement recommendation data from the manufacturer. The results of the analysis of this study indicate that the average lifetime of the rear leaf spring component is shorter than the recommended lifetime from the manufacturer with 18% decrease in component efficiency. This is caused by extreme road conditions and the lack of maximum maintenance on the leaf spring components.
Co-Authors Imam Yusuf, Muhammad Prabowo, Aldi Radhian Krisnaputra Suryo Darmo