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All Journal Manutech : Jurnal Teknologi Manufaktur Jurnal Inovasi Teknologi Terapan
Zulfitriyanto, Zulfitriyanto
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Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Efek Curing Time Komposit Serat Karbon Pada Filler Hollow Glass Microsphere (HGM) 10 % Menggunakan Metode RSM Yuliyanto, Yuliyanto; Zulfitriyanto, Zulfitriyanto; Subarkah, Imam
Manutech : Jurnal Teknologi Manufaktur Vol. 16 No. 01 (2024): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v16i01.359

Abstract

Composite is a type of material or new material made from engineering, consisting of two or more materials, composed of fiber as reinforcement and matrix as adhesive or fiber binder. Carbon fiber is a synthetic fiber that has a very thin size of around 0.1 mm which is very strong and light. This research aims to determine the effect of curing time and other parameters on the flexural strength of carbon fiber composites with Hollow Glass Microsphere (HGM) Filler. Data analysis uses Response Surface Methodology (RSM). The highest average bending test results were found in test 1 with parameters of fiber percentage of 30%, fiber length of 100 mm and curing time of 6 hours of 212 MPa. The lowest average test was in the 20th test, with parameters of fiber percentage of 10%, fiber length of 100 mm and curing time of 6 hours of 72.5 MPa. An increase in the curing time value will result in a decrease in flexural strength. Because the longer the caring time takes, the harder and more brittle the carbon fiber becomes. Another effect is that the fibers experience shrinkage and become smaller so that they form voids or small holes between the fibers and the matrix. A higher percentage of fiber influences the resulting bending strength to be stronger. Because the forces that resist during the testing process are more numerous andlarge. The effect of fiber length on flexural strength does not have a significant effect.
Analisis Kekasaran Permukaan Pada Pengaruh Kecepatan Spindel Dan Feeding Terhadap Material Baja AISI 1045 Pada Mesin Bubut CNC Aththabary Priatama, Muhammad Rizllah; Oktriadi, Yudi; Zulfitriyanto, Zulfitriyanto
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.v1i1.23

Abstract

In this era of increasingly advanced industrial technology development, of course, everyone wants the best results in making a product. For example in the machining process, one of which is CNC lathe machining, the level of roughness of a product really needs to be reviewed. The minimum surface roughness shows that the quality of a CNC machining process is very good, because the smaller the surface roughness value, the greater the quality value of a product, therefore in order to achieve this goal it is necessary to set the right parameters. Parameters varied were spindle speed (Rpm) and feeding. In this study the method used is the experimental method, with a combination of parameters to obtain surface roughness values. The material used is AISI 1045 steel, with the results of the data being analyzed using the Taguchi Smaller the Better method in Minitab 21.3 software. From the results of the calculation of the mean factor, the percent contribution to the spindle speed was obtained at 56.28%, while at feeding it was obtained at 38.14%. The optimal roughness value is obtained from the combination of parameters in the CNC lathe process on AISI 1045 steel which can make the optimal response value obtained at a spindle speed of 1645 rpm and a feeding of 0.18 mm/rev.
Optimasi Parameter Proses 3D Printing Terhadap Transparansi Filamen Pla Menggunakan Metode Taguchi Yeyen, Yeyen; Zulfitriyanto, Zulfitriyanto; Pristiansyah, Pristiansyah
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 2 (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.v2i2.161

Abstract

3D printing technology is the latest innovation in the world of technology. At the beginning of 3D Printing, technology was known as  additive layer. Fused deposition modeling (FDM) technology has been used as rapid prototyping or rapid prototyping with polymers. rapid prototyping with polymers with the material is a filament. filament. The working principle with the FDM step is the layer-by-layer method that uses components such as heat-erosion layer by layer method that uses components such as the heat-er nozzle in this section used to melt the filament that is heated in the process of making the 3D Printer prototype with Fused deposition modeling Ender model with a build size of 180 mm x 300 mm x 300 mm and a single nozzle is used to make research objects using a nozzle with a diameter of 0.4 mm. heater nozzle with a diameter of 0.4 mm, and the filament used is Polylactic Acid (PLA) which is 1.75 mm in diameter, the results of this test are to transparency test using a transparency testing tool, the Lux Meter. In this study using the Taguchi method to produce a more optimal response. where the process parameters such as nozzles, temperature, print speed, and print speed have been determined. temperature, print speed, bed temperature, layer thickness, and temperature-based plate in this study the resulting test Transparency level the highest was 223.667 and the lowest was 100.667 which is where this test using transparent PLA filament, the results of this study will be used for the manufacture of cup products.
Pemanfaatan Limbah Cangkang Kerang Simping (Amusium Pleuronectes) Sebagai Katalisator Pada Proses Carburizing Muhamad Juniardi; Ramli, Ramli; Zulfitriyanto, Zulfitriyanto
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.v2i1.188

Abstract

Simping clam’s a type of waste that is rarely used. The high levels of calcium carbonate in simping shells enable them to be used as a catalyst in the carburizing process. This research aimed to determine the effect of simping clam shell powder as a catalyst in the carburizing process on the hardness and impact strength values of ST 42 steel. This research used an experimental method by varying the percentage of simping clam shell powder: 0%, 10%, 20%, 30%, and coconut shell activated charcoal powder: 100%, 90%, 80%, and 70%, against ST 42 steel with variations in carburizing time: 3 hours, 6 hours, and 9 hours using a temperature of 900°C. The tests carried out were rockwell hardness tests and charpy impact tests according to ASTM E23 standards. From the test results, it was obtained that good hardness and impact strength values were obtained in 3 hours, the percentage was 30% with an average hardness value of 34.02 HRC and an impact value of 0.279 joules/mm2, in 6 hours the percentage was 30% with an average hardness value of 38. 92 HRC and an impact value of 0.229 joules/mm2, a time of 9 hours with a percentage of 30% an average hardness value of 43.68 HRC and an impact value of 0.179 joules/mm2. So by increasing the carburizing time, the hardness increases. The longer the carburizing time, the higher the percentage of simping clam shell powder used. This means that simping clam shell powder  functions as a catalyst.
Co-Authors Aththabary Priatama, Muhammad Rizllah Muhamad Juniardi Oktriadi, Yudi Pristiansyah Pristiansyah Ramli Ramli Subarkah, Imam Yeyen, Yeyen Yuliyanto Yuliyanto