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All Journal Dinamika Hukum Sinergi ROTOR: JURNAL ILMIAH TEKNIK MESIN Indonesian Journal of Science and Technology R.E.M (Rekyasa Energi Manufaktur) Jurnal Journal of Mechanical Engineering Science and Technology Jurnal Ilmiah Kebijakan Hukum Animal Production : Indonesian Journal of Animal Production JEPA (Jurnal Ekonomi Pertanian dan Agribisnis) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Agrisocionomics: Jurnal Sosial Ekonomi Pertanian Ta`Limuna : Jurnal Pendidikan Islam ComTech: Computer, Mathematics and Engineering Applications Jurnal Ilmiah Fillia Cendekia Revitalisasi : Jurnal Ilmu Manajemen INTEGRITAS : Jurnal Pengabdian Manajemen Agribisnis: Jurnal Agribisnis Jurnal Abdi Insani Jurnal Dinamika Sosial Ekonomi Otonomi Jurnal Ilmiah Pendidikan Visioner (JIPV) CITIZEN: Jurnal Ilmiah Mulitidisiplin Indonesia JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI Jurnal Manajemen Pesisir dan Laut Jurnal Polimesin Indonesian Journal of Maritime Technology or abbreviated (ISMATECH) INTERACTION: Jurnal Pendidikan Bahasa
Sumarji
Universitas Jember
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Journal : Journal of Mechanical Engineering Science and Technology

 1 
Effect of Variation of SiC Mass Fraction on Mechanical Properties of Al-SiC Composite Using Stir Casting Method Sumarji Sumarji; Naufal Fardio Albajili; Mahros Darsin; Rahma Rei Sakura; Andi Sanata
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 6, No 1 (2022)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v6i12022p023

Abstract

Al-SiC is a composite composed of AA6061 as a matrix and SiC as a reinforcement particle. The variation of mass added will affect the mechanical properties of the composite because Al-SiC is hardenable, which means that its mechanical properties can be improved by adding the reinforcement component. However, an excessive portion of SiC leads to a decrease in mechanical properties. The purpose of this study was to find the optimal composition of the addition of SiC into the aluminium matrix to gain maximum tensile strength and hardness. The mass fraction variation that would be used in this composite was the addition of 6%, 8%, and 10% SiC with the addition of 1% Mg as a wetting agent. The mixing process used the stir casting method. The process of adding SiC and Mg was carried out by melting the aluminium while stirring it for a certain time before it went to the furnace. The ASTM E8/E8M standard was used for observing the tensile strength of the specimens. Machining was carried out before testing. The specimens were also tested for hardness using the Rockwell hardness method. The result shows that the addition of SiC at the amount of 6%, 8%, and 10% SiC increased the ultimate tensile strength by154.10 MPa, 175.01 MPa, and 198.14 MPa, respectively. Similarly, the hardness also increased up to 30.1 HRF, 48.1 HRF, and 66 HRF, respectively. Microstructure observation also confirmed that a 10% SiC fraction results in less defect and good wettability. The addition of 10% SiC and 1% Mg resulted in maximum tensile strength and hardness and the best microstructure.
Optimization of the Number of Cylinder Blades in Coffee Pulper Machine: Finite Element Analysis and Simple Additive Weighting Methods Syahriza, Mochamad Rifki; Djumhariyanto, Dwi; Ilminnafik, Nasrul; Darsin, Mahros; Yudistiro, Danang; Basuki, Hari Arbiantara; Wibowo, Robertoes Koekoeh Koentjoro; Syuhri, Ahmad; Sumarji, Sumarji
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 2 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i22024p476

Abstract

The increasing interest in coffee in all circles means that coffee production and quality must always increase due to consumer demands. One way to maintain the quality of coffee beans is by breaking them down using a huller machine. This research aims to improve the optimization of coffee machines by modifying the cylinder blades of huller machines with variations of 3, 4, 5, and 7 cylinder blades in terms of static loading design and quality and production capacity of coffee bean breaking. The experiment was carried out using 400 rpm and breaking 10kg of dry coffee cherries every time the sample was taken. The research results show that the best sample collection is the variation of 3 cylindrical blades with the maximum stress and lowest deformation values of 6.67 MPa and 0.000737 mm. In terms of production quality, it shows that the best sampling was the three cylindrical blade variations with 50% whole and good coffee beans. In terms of production capacity, the most significant capacity was the seven cylindrical blade variations with a value of 294.11 kg/hour. Sampling from the four most optimal variations uses the SAW (Sample Additive Weighting) method. The most optimal result from the 4 test criteria, the variation of 3 cylindrical blades is the best because it has the highest score with a value of 0.9754.
Co-Authors Abu Talkah Adi Purnomo Adi Purnomo Ahmad Jukliv Pandu Yoedhawan Ahmad Jukliv Pandu Yoedhawan, Ahmad Jukliv Pandu Ahmad Syuhri Ales, Steve Korakan Aman Sentosa Aman Sentosa, Aman Amirur Ridho Muhammad Andi Sanata Angger Sudrajat Angger Sudrajat, Angger Ardiansah, Nugroho Jarot Dwi Aris Zainul Muttaqin Arisyahidin, Arisyahidin Aulia, Kunti Rachma Chamim Rosyidin Danang Yudistiro Dani Hari Tunggal Prasetiyo Danny Febriansyah Daroini, Ahsin Daroni, Ahsin Dedi Dwi Laksana Dedi Dwi Laksana Dedi Dwilaksana Digdo Listyadi, Digdo Dwi Djumhariyanto Dwi Suryanningdyah Heni Untari Esti Widasih Gaguk Jatisukamto Gumira, Seno Wibowo Haidzar Nurdiansyah Hari Arbiantara Hari Arbiantara Basuki Hary Sutjahjono Heni Untari, Dwi Suryanningdyah Imam Sholahuddin Intan Hardiatama Istiyowati, Nuning Iwan Faisal Hidayat Karina, Asa khoirul fahmi aziz Lutfi, Dwiki Alfikriyadi M Asrofi Mahros Darsin Masfeya Eka Hermiansyah Masruri Wardhana Mega Hastuti, Sri Wahyuni Melany Pilatusalim Mochamad Asrofi Mochamad Edoward Ramadhan Muhammad Abduh Muhammad Trifiananto Mulyani, Novilia Mulyaningtyas, Ratna Dewi Mustofa, M. Rowi Naafi' ul Amri Nasrul Ilminnafik Naufal Fardio Albajili Naufan Arviansyah Ningsih, Dwi Aminawati Nopitasari, Dewi Nova Monica Aulia Safitri Novel Bagas Satrio Wibowo Nurteteng, Nurteteng Nurul Huda Oktaviyanti, Milla Pratama Yuli Arianto Prayogo Alim Pangestu Puanggo Ganjar Widityo Puranggo Ganjar Widityo Rahma Rei Sakura Rahmatullah Rahmatullah Raihaan, Raihaan Rama Wira Drana Wasistha Ramadhan, Ivan Fadilla Ramli Firdaus Kusnadi Ratna Dewi Mulyaningtiyas Ratna Dewi Mulyaningtiyas Ratna Dewi Mulyaningtiyas Ridha, Fabrobi Rizka Febby Rofi'ah Rizki, Muhammad Khoirur Robertoes Koekoeh KW Robertus Sidartawan Rony Agista Apriansyah Rudianto Rudianto Rusandy, Deby Santyo Saefuddin, Yusuf Saifurridzal, Saifurridzal Salahuddin Junus Setyani, Adika Desi Silvia Andress Andress Suci, Ririn Kurnia Suparno Suparno Supriyono Supriyono Susanti, Rizqa Putri Suwasono, Edi Syahriza, Mochamad Rifki W.C.S, I Made Ivan Wazirotus Sakinah Wibowo, Robertoes Koekoeh Koentjoro Widityo, R. Puranggo Ganjar Widityo Yanuar Alditya Nugraha Yasim, Ahmad Yulio, Agit Yoga Yusuf Nur Afandi Yusuf Nur Afandi, Yusuf Zainul Arifin