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Fatkur Rhohman, Fatkur
Universitas Nusantara PGRI Kediri
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EFFECT OF ZIGZAG AND LINE PRINTING PATTERN ON TENSILE STRENGTH AND SURFACE ROUGHNESS OF FUSED DEPOSITION MODELING PRODUCT Sari, Ayu Perwita; Rhohman, Fatkur; Winata, Ayis Nuredi; Herlanto, Frendy Edo; Lubis, Abdul Munir Hidayat Syah; Anggono, Agus Dwi
Media Mesin: Majalah Teknik Mesin Vol. 25 No. 1 (2024)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v25i1.3284

Abstract

This research aims to test the results of 3D printing using Polylactic acid (PLA) filament on surface roughness and tensile strength. Experiments were carried out by adjusting the differences in printing fill density for the pattern used. Filling density uses variations of 60%, 80%, and 100%. The tensile test is used to measure the tensile mechanical properties of polymers (σ). The roughness test is obtained to determine the average surface roughness (Ra), root mean square roughness (Rq), and ten-point height (Rz). The test specimen uses the ASTM D638 type 4 standard model and size. The nozzle diameter is 0.4 mm, the temperature is 220 °C, and the heat bed temperature is 60 °C. The mechanical properties test results of the printing pattern showed that the zigzag pattern had the highest yield strength, maximum load, and elongation values, namely 0.97 N/mm2, 52.99 N, and 9.43%. Meanwhile, in the line pattern, the highest yield strength, maximum load, and elongation values were 1.51 N/mm2, 62.72 N, and 3.54% and the highest yield of the two patterns was in the highest printing pattern, namely 100%. It was concluded that the larger the printing pattern, the wider the filament will be, as a, result the level of surface roughness will also be higher.
Bleaching Silika dari Bagase sebagai Bahan Semikonduktor Solar Sel Nadliroh, Kuni; Rhohman, Fatkur; Puspitasari, M Dewi Manikta
Nusantara of Engineering (NOE) Vol 8 No 02 (2025): Volume 8 Nomor 2 - 2025
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/noe.v8i02.24756

Abstract

Penelitian ini bertujuan untuk membuat bahan semikonduktor untuk membuat solar sel, sebagaimana yang telah diketahui bahwa solar sel dibentuk oleh semikonduktor yang dirangkai sedemikian rupa sehingga mampu mengkonversi sinar matahari menjadi arus listrik. Dalam hal ini peneliti menyoroti bahan pembuatan semikonduktor tersebut bisa dibuat dari bahan alam yang merupakan salah satu bentuk limbah dari pembuatan gula pasir, yaitu bagase. Dimana keberadaan bagasse sering mengganggu dan kalaupun digunakan hanya sebatas bahan bakar pengolahan gula dan akan menjadi abu yang hanya terbuang. Melihat tersebut maka peneliti berinisiatif untuk memanfaatkan bagasse tersebut dengan cara mengolahnya menjadi silika yang dapat digunakan untuk pembuatan bahan semikonduktor untuk pembuatan solar sel.
Co-Authors Achmad Fajar Sodiq Adi Nugroho Aditya Susela Agus Dwi Anggono Ahmad Adi Nugroho Ahmad Candra Setiawan Aji Rizal Ainur Rofiq Akaz Dwi Prayitno AM Mufarrih Am. Mufarrih Angga Septian Dwiyanto Anggoro, Andika Dwi Arifirnando, Lucky Aris Wibowo Asna Maulian Amroni Maulian Amroni Belandy Wimala Tirtana Budi Setiawan Danu Pamungkas Desta Tri Ramadan Dian Chafid Amrulloh Didan Juni Saputra Dwi Setyawan Enrile Bayu Rismawan Fardana, Fendi Faruq Roziqi Indrayono Fauzi, Ah Sulhan Hendra Tri Prasinta Herlanto, Frendy Edo Hesti Istiqlaliyah Ilham, M. Muslimin Irfan Yoga Prasetya Julianto, Mackrop Kuni Nadliroh Lubis, Abdul Munir Hidayat Syah M. Dewi Manikta Puspitasari M. Khoirul Anam M. Muslimin Ilham M. Muslimin Ilham Mohammad Muslimin Ilham Mohammad Zainul Abidin Muchammad Khoyrul Anam Muhammad Daris Muslim Muhammad Muslimin Ilham Nur Rokhim Nurwindu Arisusilo Nuryosuwito Nuryosuwito Nuryosuwito Nuryosuwito, Nuryosuwito Pamungkas, Danu Pramesti, Yasinta Sindy Predianto, Engga Purwinanto, Rolistian Willy Resty Wulanningrum Reza Aulia Rahman Rina Firliana Rolistian Willy Purwinanto Sabarudin Sabarudin Sari, Ayu Perwita Septianto, Yoga Septiyan Wahyu Prayogi Setyowidodo, Irwan Suhendro Prayitno Susdi Subandriyo Susdi Subandriyo Susetyo, Nasyiruloh Dwi Teofani Bagus Prasetiyo Uriansyah, Faridz Ashar warandani yulianto Winata, Ayis Nuredi Yasinta Sindy Yogariestya Hanggara Yonald Adzandy Lanang