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Journal : Jurnal Inovasi Teknologi Terapan

Optimasi Parameter Produk 3D Printing Terhadap Kekuatan Bending Dengan Menggunakan Filamen Nylon Fadhil, Irfan; Hasdiansah, Hasdiansah; Anggry, Adhe
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 1 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v1i1.17

Abstract

3D Printing or additive manufacturing is a new technology for the industry. The machine has created an object for 3D layer by layer that makes a product with accurate dimensions and certain patterns, as the technology developed, the manufacturing industry began to develop products using additive material methods known as rapid prototyping or layer manufacturing, one of which was the use of 3D printer technology. This research was conducted on a 3D Printing FDM model Ender 3 Pro with dimensions 220 mm x 220 mm x 250 mm and using a nozzle with a 0,4 mm diameter. The material for this research is Nylon 6 with a diameter of 1,75 mm with variations in Layer Thickness (0,21 mm 0,24mm 0,27 mm), Infill Pattern (Rectilinear, Grid, Wiggle), Z-Orientation (0°,15°,30°) which will be determined in Ultimaker Cura 4.4.0 software and Taguchi Method in software minitab19.1. resulting in OA L9 with 3 times replication printed sample. The results obtained after testing the highest bending stress values are found in the 9th specimen which is 16,7 MPa average with 0,27 Layer Thickness, Wiggle Infill Pattern, and 15° Z-Orientation. While the lowest bending stress values are found in the 4th specimen which is 12,7 MPa average with 0,24mm Layer Thickness, Rectilinear Infill Pattern, and 15° Z-Orientation.
Pengaruh Perubahan Kadar pH Air Dengan Optimalisai Ukuran dan Suhu Aktivasi Serbuk Cangkang Siput Hisap (Cerithidea Obtusa) Sebaga Media Adsorben Candra Permana, Agi candra permana; Juanda, Juanda; Anggry, Adhe
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 1 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i1.170

Abstract

The demand for clean water continues to increase along with population growth. Therefore, it is important to improve water quality to meet the demand for clean water supply. There are three methods that can be used in the water purification process, namely filtration, sedimentation, and adsorption. Clam shell waste contains calcium carbonate (CaCO3) with a percentage of 98%. This content can be used as an adsorption media. The purpose of this research is to utilize gold snail shell waste for activation at mesh size and temperature by determining the most optimum value. The results of making adsorbents will be tested on borehole water at the Bangka Belitung State Manufacturing Polytechnic to study changes in the degree of acidity of water pH. The research was conducted using the Taguchi method, where the process parameters were mesh size and activation temperature. The parameters were then adjusted with the OA L_9 algorithm for three repetitions. Based on the results of the research and test data processing that has been done, it is concluded that the activation temperature is the highest influence in the process of making adsorbents. Optimal results were obtained at a powder size of 150 mesh (109 μm) and at an activation temperature of 700o C. With a percent contribution value on mesh size of 3.42% and activation temperature of 94.32%. It can be concluded that activation temperature is the highest influence in the process of making adsorbents.