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Pengaruh Diameter Nozzle dan Tebal Layer Terhadap Ketelitian Objek Printer 3D Dicky Seprianto
Jurnal Teknik Mesin Vol 14 No 1 (2021): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.14.1.547

Abstract

Rapid prototyping is closely related to 3D printers (additive manufacturing). Rapid prototyping is a technique for making a prototype model from a CAD file which is the final result, while a 3D printer is one of the processes. The 3D printer process is by melting the filament layer by layer to form a component or product. The 3D printer melting process uses a heater on the nozzle. This study aims to analyze the effect of nozzle diameter and layer thickness on the accuracy (dimensional measurement) of 3D printer objects. To determine the precision, a test object was made based on ASTM D995-08. The variation of nozzle diameter used is 0.2 mm and 0.5 mm, while the variation in layer thickness is 0.1 mm and 0.3 mm. In this study, delta type 3D printing was used with polylactic acid (PLA) material to make test objects. Dimension measurement using ASTM D5947-06. Analysis of the measurement results used ANOVA with a 2-level factorial design type and a 2 factorial interaction (2FI) model design using Design-Expert®. software. From the actual measurement results, the most accurate (precise) results are obtained on the test object with a variation of the nozzle parameters with a diameter of 0.2 mm and a layer thickness of 0.1 mm. From the analysis of the specimen measurement data, it can be concluded that the nozzle diameter significantly affects the response of length, width and height while the thickness of the layer affects the response of the length and width of the specimen.
Optimalisasi Cycle Time Proses Vacuum Forming Pada Kemasan Plastik Almadora anwar Sani; Dicky Seprianto; Didi Suryana; Iskandar Iskandar; M Khaira Fajri
TEKNIKA Vol. 17 No. 1 (2023): Teknika Januari - Juni 2023
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7943352

Abstract

Alat vacuum forming otomatis untuk pengemasan produk, dilakukan pengembangan sehingga dapat lebih efisien dari sebelumnya. Permasalahan yang dihadapi adalah proses naik turunnya plastic clamp dari meja vacuum ke bagian kotak heater, yang masih manual menggunakan tenaga dari operator, sehingga mengakibatkan kurang efisien dalam pengerjannya. Maka dilakukan pengembangan terhadap alat vacuum forming yang telah ada dan melakukan peningkatan di beberapa bagian dengan tujuan meningkatkan efisiensi alat, meningkatkan peforma alat dan mengurangi beban kerja dari operator. Dalam proses pengembangan ini beberapa komponen dibuat menggunakan teknologi addictive manufacturing yaitu menggunakan mesin 3D Printing. Bahan yang digunakan dalam proses pengujian alat ini adalah plastik jenis PET (Polyethylene Terephthalate) ukuran 400mm x 400mm, dengan ketebalan 0,35 mm. Hasil yang diperoleh adalah kemasan produk sesuai dengan permodelan yang digunakan. Hasil bentuk dipengaruhi dari proses vacuum forming pada saat waktu pemanasan, apabila bendanya memiliki bentuk yang lebih rumit maka diperlukan waktu pemanasan plastik yang lebih lama. Kata kunci - Cycle Time, Pengemasan, Vacuum Forming, Kemasan Plastik
PENGARUH PARAMETER PROSES TERHADAP DIMENSI CASING GEAR DENGAN PRODUKSI MENGGUNAKAN TEKNOLOGI 3D PRINTER DLP (DIGITAL LIGHT PROCESS) Dicky Seprianto; Ahmad Zamheri; Almadora Anwar Sani; Nanda Yusril Mahendra
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3614

Abstract

DLP (Digital Light Process) 3D Printer Technology is a 3 dimensional printing machine made from resin with a lighting system using a light projector with a layer-by-layer printing process. In this research, the writer will make an object, which is one of the machining components, namely the gearbox casing. In this study the authors will analyze the effect of process parameters (exposure time, off time, and their interaction) on the dimensions of the printout and get the most optimal parameters to be applied to components or printing objects. In conducting testing, the measurement of the tester’s dimensions uses the Krisbow KW06-422 calipers. Then the measurement data is processed by the Anova method with the help of software design expert version 10. After the research process obtained the results that the most influential parameters are the interaction factor between exposure time parameters and off time parameters on the dimensions of the printed objects, and the most optimal combination of parameters is found in the exposure time parameters 10 second and off time 1 second with a level of precision of 95%.