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All Journal Perwira Journal of Science and Engineering (PJSE) Journal of Mechanical Engineering Jurnal Inovasi Mesin
Zidan Yusron Wijanarko
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Automotive Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering

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Akurasi Dimensi Komponen Multi-material Hasil Manufaktur Digital Light Processing (DLP) 3D Printing Budi , Arifvianto; Yusron, Wijanarko Zidan; Muslim , Mahardika
Journal of Mechanical Engineering Vol. 1 No. 1 (2024): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v1i1.2191

Abstract

Workpieces resulting from 3D printing manufacturing which were initially only for rapid prototyping purposes, are now used for final products. In its development, a method is needed that can accommodate the creation of multi-material structures because there are complex structures that require hard materials and elastic materials in one part at once. Multi-material manufacturing with a laminate structure in DLP 3D printing can be done by changing the resin material periodically as needed. One important aspect in multi-material 3D printing manufacturing is dimensional accuracy. In this research, the accuracy of multi-material specimen layer thickness from DLP 3D printer manufacturing was studied. The specimens were manufactured with a uniform CAD design, but with varying numbers of material layer pairs. The thickness of each layer of the specimen is measured. From the measurement results, it is known that there is an error in the thickness of each specimen due to the bottom layer phenomenon and the influence of the penetration range of UV light in the DLP 3D printing technique due to differences in the color density of the resin material and the concentration of the photoinitiator.
Stiffness Improvement of Corrugated Metal Roofs through Cross-Sectional Geometry Modification Zidan Yusron Wijanarko; Prasetiyo, Angger Bagus
Jurnal Inovasi Mesin Vol. 7 No. 2 (2025): OCTOBER 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v7i2.31504

Abstract

Nowadays, many Indonesian commonly use metal trapezoidal corrugated roofs for their residential needs. Nevertheless, the roofs often deformed or failed due to heavy rains or storms, especially in tropical regions like Indonesia. Therefore, a new model was investigated and proposed in this research to enhance the stiffness-to-weight ratio of the roofs. Computational simulation was conducted to compare the existing and the proposed model of the roofs. The addition of some small folds in certain positions successfully increases the stiffness-to-weight ratio of the roof by 11.58% compared to the existing model.
Pengaruh Pasir Silika sebagai Filler pada Komposit Berpengikat Poliester teradap Karakteristik Komposit Zulfikar Alief Utama, Iqbal; Yusron Wijanarko, Zidan; Bagus Prasetiyo, Angger; Harwijayanti, Widyanita; Whonica
Perwira Journal of Science & Engineering Vol 6 No 1 (2026)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/nrkhw323

Abstract

Pertumbuhan jumlah manusia dan perkembangan pembangunan di berbagai wilayah di dunia mempengaruhi mobilisasi manusia yang membutuhkan kendaraan untuk berpindah tempat dalam memenuhi kebutuhan. Untuk memenuhi kebutuhan kendaraan di perlukan material body kendaraan dengan material yang memiliki ketahanan terhadap uji mekanis. Komposit merupakan material unggul dimana tailorability (kekuatan) bisa disesuaikan dengan kebutuhan. Komposit polimer pada bidang otomotif dikembangkan  dengan kualifikasi ketahanan bakar yang baik. Pengembangan komposit polimer dapat dilakukan dengan filler sehingga menghasilkan material yang lebih unggul dan menghasilkan kinerja yang tinggi. Pasir Silika merupakan Geomaterial dengan istilah pasir kuarsa, pasir putih atau pasir industri. Secara umum pasir silika terdiri dari silikon dioksida ( SiO2 ). Pasir Silika memiliki sifat keunggulan apabila digunakan sebagai material manufaktur diantaranya adalah keras, memiliki titik leleh yang tinggi/ tahan panas, tahan terhadap tekanan dan abrasi. Resin yukalac 157 BQTN merupakan polimer jenis termosted poliester biasa diaplikasikan pada suhu kerja mencapai 79 ˚C. dengan berat jenis 1,3-1,4 kg/cm3.Penelitian ini bertujuan untuk mengetahui karakteristik komposit geopolimer antara pasir silica dan polimer yukalac 157 BQTN terhadap kekuatan lentur dan kekuatan tarik.
Co-Authors Angger Bagus Prasetiyo Budi , Arifvianto Harwijayanti, Widyanita Muslim , Mahardika Whonica Zulfikar Alief Utama, Iqbal