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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Ilmiah Teknik Mesin Jurnal Rekayasa Mesin JMPM (Jurnal Material dan Proses Manufaktur) Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Quantum Teknika Politeknosain
Bayu Prabandono
Politeknik ATMI Surakarta
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

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Studi Eksperimental Nilai Kekerasan Semikonduktor ZnO terhadap Variasi Beban Kompaksi Agus Kurniawan; Bayu Prabandono; Sularman
Politeknosains Vol 15 No 2 (2016): Jurnal Politeknosains Volume 15 Nomor 2 - September 2016
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Pratama Mulia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (626.298 KB)

Abstract

One important process in manufacturing pellet material is a compaction. This research will study the hardness value at ZnO semiconductor material that is compacted with different pressure. The first material is pure ZnO that was grinded with agate mortar, filtered and compacted with pressure are 10 bar, 20 bar and 30 bar so the pellet form were shaped. The size of pellet is Æ 13 x 2 mm. Furthermore, these pellet sintered at temperature 1300oC than it will test by vikers microhardness testing. The testing result is that the greatest vikers microhardness at the material that is compact at 30 bar. The mean value of it is 213.85 Hv. The greater of compacting pressure given the higher value of the material's hardness. Nevertheless, the magnitude of compacting pressure must consider the ability of the compacting mold.
Material Semikonduktor ZnO Didoping Cu Untuk Meningkatkan Konduktivitas Thermal Bayu Prabandono; Agus Kurniawan
Politeknosains Vol 15 No 1 (2016): Jurnal Politeknosains Volume 15 Nomor 1 - Maret 2016
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Pratama Mulia Surakarta

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Abstract

LGV (liquefied gas for vehicle) is one of the alternative fuel, which prioritized for a fuel diversification program of transportation sector in Indonesia. Having different characteristics and properties of gasoline fuel, the use of LGV fuel will have an effect on the working parameters of an engine. Based on that, this research is conducted to analyze the effect of using LGV fuel at a mass air flow rate and fuel rate in passenger cars. Through this research also expected as an act to support the diversification fuel program that proclaimed by Indonesia Government. Passenger cars used in this research have a different engine capacity, i.e., 1200 cc and 1500 cc. Measurement of mass air flow rate and fuel rate are performed with the throttle position variation (absolute throttle position) from 14% to 30% on third gear. The results obtained indicate that there is a decrease in air and fuel flow rate of 4% for the test car Honda Mobilio (1500 cc) and 2% for Mitsubishi Mirage (1200 cc). In addition, the air fuel ratio (AFR) of LGV fuel has the same range like fuel petrol mixing, the value of the measured air fuel ratio is 14.4-14.8 for Honda Mobilio and 13.5-14.6 for Mitsubishi Mirage. The lower value of fuel flow rate than gasoline fuel, prove that the use of the LGV fuel is more efficient and cheaper (due to the LGV price) than gasoline. In addition, LGV fuel also more environmentally friendly than gasoline fuel as seen from result of emission testing done by the most researchers.
Analisis Konsistensi Volume Output Pada Nozzle Barrel Mesin Mini Injeksi V-Line Menggunakan Material Plastik Polypropylene ExxonMobil AP03B Bayu Prabandono; Alex Satria Wibawa; Mirza Yusuf; Agus Kurniawan; Aditya Nugraha
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 5, No 2 (2024): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v5i2.21837

Abstract

One of the processes commonly used in making plastic goods is the injection molding process. Every process in injection molding has a very important role. A less-than-perfect process will result in defects or failure in the product. To reduce product defects, one of the processes that must be researched is the barrel purging process. The purging volume on the mini injection machine using the V-line method is inconsistent, as evidenced by the fact that if the purging waste, or what is usually called an avalanche is weighed, it will produce a non-uniform mass. This research uses a mini injection machine with the V-line method which has 2 main steps to carry out the plastic injection process; dosing and injecting. Unlike injection engines in general, this engine does not have a check-ring to withstand back pressure. This machine uses a shut-off system as a replacement for the check-ring role. This machine has never been subjected to a purging volume consistency testing process. The consistency of the purging volume greatly influences the product uniformity results. The research method used in this final assignment is direct. Data collection and test specimen collection will be taken directly on the mini injection machine using the V-line method. The steps taken in this research are planning, taking data, taking test specimens, processing test specimen data, and comparing test specimen data to obtain analysis results. The research results show that the mini V-line injection machine cannot support mass production, because increasing the screw rotation speed will affect the consistency of the volume of plastic that will be produced in the barrel, causing production to not run quickly and precisely.
Analisis Kekuatan Tarik Campuran Material ABS LG HI121H Dengan ABS Daur Ulang Prakoso, Redemptus Didik; Budiarto, Stevanus Hanung Tri; Nugraha, Aditya; Nugroho, Yohanes; Prabandono, Bayu
Jurnal Ilmiah Teknik Mesin Vol 12 No 2 (2024): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v12i2.9894

Abstract

Pembuatan produk plastik mayoritas menghasilkan limbah plastik yang cukup banyak. Penggunaan limbah plastik dalam pembuatan produk ditujukan untuk mengurangi harga jual dengan tetap menghasilkan produk dengan kualitas baik. Namun penggunaan limbah plastik dalam proses injection molding untuk membuat produk baru belum banyak dimanfaatkan karena keterbatasan data karakteristik kualitas produk yang dihasilkan. Penelitian ini bertujuan untuk mengetahui parameter injeksi terbaik yang menghasilkan kekuatan tarik produk yang paling optimal pada campuran 70% ABS LG HI121H murni dan 30% ABS LG HI121H daur ulang, mengetahui pengaruh paramater, serta mengetahui pengaruh prosentase campuran. Penelitian ini menggunakan metode Taguchi untuk memperoleh kombinasi terbaik parameter proses injeksi dan metode ANOVA untuk mengetahui pengaruh faktor parameter yang digunakan. Parameter yang digunakan masing-masing 3 level yaitu melt temperature 200°C, 225°C, dan 250°C; holding pressure 27 bar, 30 bar, dan 33 bar; cooling time 53s, 55s, dan 57s; serta injection speed 25 mm/s, 30 mm/s, dan 35 mm/s. Hasil penelitian menunjukkan bahwa untuk memperoleh hasil kekuatan tarik terbaik, parameter melt temperature 200°C, holding pressure 30 bar, cooling time 53 s, injection speed 25 mm/s dengan kekuatan tarik rata-rata sebesar 46,59 Mpa yang diuji melalui uji konfirmasi. Faktor yang mempengaruhi hasil kekuatan tarik adalah melt temperature sebesar 89,73%, holding pressure 1,72%, cooling time 0,34%, injection speed 0,95%, sedangkan 7,26% adalah faktor error. Penggunaan material ABS dengan prosentase campuran 70% ABS murni dengan 30% ABS daur ulang menyebabkan penurunan kekuatan tarik dengan angka sebesar 46,59 Mpa lebih rendah dibandingkan dengan kekuatan tarik dari material 100% ABS murni yaitu 56,4 Mpa.
Analisis Kekuatan pada Pengembangan Desain Shelf pada Base Cabinet dengan Analisis Elemen Hingga menggunakan Perangkat Lunak Solidworks CAE Bayu Prabandono; Rafael Bhima Sena Purnama Putra; Andronikus Cahya Pradana; Agus Kurniawan; Aditya Nugraha; Mirza Yusuf
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol. 6 No. 1 (2024): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v6i1.19979

Abstract

ATMI Duta Engineering company is a manufacturing company engaged in the field of sheet metal with a material cutting process using laser cutting technology. Sheet metal products produced at ATMI Duta Engineering company is very diverse, one of which is the base cabinet. The base cabinet has main components, one of which is the shelf. Based on the data obtained from the interview process, there are problems, namely the shelf has never been analyzed, there are no finished products, and there is a risk of damage due to excessive loading. The solution to the shelf problem is to carry out a shelf design analysis using the finite element analysis method through Solidworks CAE software. The CAE simulation was applied to 27 variations of the shelf design by combining 3 test variables, namely the shelf model, the reinforcement model, and the thickness of the material. The material used in the simulation is SPCC material with a thickness of 1mm, 1.2mm and 1.5mm. The CAE simulation results obtained are then compared with reference to the SEFA 8M-2016 standard. The loading given in the CAE simulation is ± 108 kg (1.2 SEFA standards). The strongest variation obtained from the elimination process is variation 19 with a combination of shelf model 1 design, reinforcement model A, and with a material thickness of 1.5mm. Variation 19 meets the SEFA 8M-2016 standard because the displacement value is 1.065mm and this value is smaller than 6.35mm.
Analisis Konsistensi Volume Output Pada Nozzle Barrel Mesin Mini Injeksi V-Line Menggunakan Material Plastik Polypropylene ExxonMobil AP03B Bayu Prabandono; Alex Satria Wibawa; Mirza Yusuf; Agus Kurniawan; Aditya Nugraha
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol. 5 No. 2 (2024): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v5i2.21837

Abstract

One of the processes commonly used in making plastic goods is the injection molding process. Every process in injection molding has a very important role. A less-than-perfect process will result in defects or failure in the product. To reduce product defects, one of the processes that must be researched is the barrel purging process. The purging volume on the mini injection machine using the V-line method is inconsistent, as evidenced by the fact that if the purging waste, or what is usually called an avalanche is weighed, it will produce a non-uniform mass. This research uses a mini injection machine with the V-line method which has 2 main steps to carry out the plastic injection process; dosing and injecting. Unlike injection engines in general, this engine does not have a check-ring to withstand back pressure. This machine uses a shut-off system as a replacement for the check-ring role. This machine has never been subjected to a purging volume consistency testing process. The consistency of the purging volume greatly influences the product uniformity results. The research method used in this final assignment is direct. Data collection and test specimen collection will be taken directly on the mini injection machine using the V-line method. The steps taken in this research are planning, taking data, taking test specimens, processing test specimen data, and comparing test specimen data to obtain analysis results. The research results show that the mini V-line injection machine cannot support mass production, because increasing the screw rotation speed will affect the consistency of the volume of plastic that will be produced in the barrel, causing production to not run quickly and precisely.
Design and Construction of a Bending Test Machine Using the VDI 2222 Method and Accuracy Verification Using UTM Bayu Prabandono; Laurentius Sumadi; Paulinus Cherlyndo Paterias; Ivo Arya Gustantia; Yanuarius Wahyu Utama; Bondan Wiratmoko Budi Santosa; Agus Kurniawan
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol. 16 No. 1 (2026): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/685vfb39

Abstract

Plastic material testing is conducted to determine the mechanical properties and strength characteristics of plastic materials. The selection of appropriate plastic material is a critical aspect in product design to ensure optimal strength and quality. At PT XYZ, a discrepancy was identified between the elastic modulus values stated in the material datasheet and those observed in the actual product material. Such differences can affect the fracture limit, resulting in products that do not meet design specifications. In response to this issue, a product bending test machine was proposed and designed. The VDI 2222 methodology was utilized in the design process, and testing was performed using PMMA specimens in accordance with ASTM D790 standards. Verification was conducted using the Zwick Roell Z020 Universal Testing Machine, accompanied by analytical calculations to determine the accuracy of the newly designed machine. The study resulted in alternative design options for the bending test machine based on the requirements list and calculated accuracy levels. The accuracy results showed a force accuracy of 98.63%, displacement accuracy of 58.67%, and stress accuracy of 97.34%. The significant deviation in displacement is suspected to be due to system incompatibility and additional jig components that were not perfectly perpendicular to the pressing plane, leading to measurement errors. The current prototype of the product bending test machine is considered not yet suitable for industrial applications. Further review is required, particularly in calibrating the displacement between the mechanical components and the electronic control system.
Analysis of 30° Paddle Blade Performance for Motor Power Reduction in a 10 kg Horizontal Dough Mixer Bayu Prabandono; Archi Kun Cahyo Utomo; Kurniawan Sindu Arifin; Rahmat Tri Hartanto; Christian Widyasmara
Jurnal Rekayasa Mesin Vol. 21 No. 2 (2026): Volume 21, Nomor 2, August 2026
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v21i2.7506

Abstract

This study investigates the effect of paddle blade inclination on the performance of a 10 kg horizontal dough mixer used in small-scale bakery production. The existing mixer uses a 0° paddle blade and requires a high motor power of 4.85 kW, with a mixing time of approximately 60 minutes. Previous studies have shown that paddle geometry and inclination affect material movement, torque, and mixing performance; however, experimental studies on inclined paddle blades in small-capacity gasoline-engine-driven dough mixers remain limited. This study evaluates a 30° paddle-blade modification to reduce the motor power requirement and mixing time. Experiments were conducted at rotational speeds of 60, 70, and 80 rpm using a constant dough load of 10 kg. Motor power and mixing time were recorded for each operating condition. At 70 rpm, the original 0° blade was compared with the modified 30° blade under the same dough load and rotational speed. The results show that the 30° blade reduced motor power from 4.85 to 2.45 kW, corresponding to a 49.48% reduction, while mixing time decreased from 60 to 35 minutes. Based on the measured power and mixing duration, the estimated energy requirement decreased from 4.85 to 1.43 kWh, representing a 70.52% reduction. The inclined blade promotes combined radial–axial material movement, which can reduce localized dough accumulation and mechanical resistance. The results demonstrate that a 30° paddle blade is a practical modification for improving the tested mixer's performance.
Co-Authors Aditya Nugraha Agnes Putri Kartika Santosa Agus Kurniawan Agus Kurniawan Alex Satria Wibawa Andronikus Cahya Pradana Archi Kun Cahyo Utomo Bondan Wiratmoko Budi Santoso Budiyantoro, Cahyo Christian Widyasmara Devinta Putri Ardani Dicky Bondan Wirawan Ivo Arya Gustantia Kurniawan Sindu Arifin Laurentius Sumadi Mirza Yusuf Mirza Yusuf Mirza Yusuf NS, Yudit Cahyantoro Nugroho, Yohanes Paulinus Cherlyndo Paterias Permana, Cepi Rahmatullah Permana, Cepi Rahmatullah Prakoso, Redemptus Didik Rafael Bhima Sena Purnama Putra Rahmat Tri Hartanto Santoso Kalim Stevanus Hanung Tri Budiarto Sularman Wisnu Wijayanto wisnu wijayanto Yanuarius Wahyu Utama Yudit Cahyantoro NS