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Optimasi Parameter Proses 3D Print Produk Kopling Menggunakan Filamen PLA (Polylactic Acid) dan Response Surface Methodology Nisah, Khairun; Sateria, Angga; Oktriadi, Yudi; Yudo, Eko; S Suzen, Zaldy
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 1 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i1.301

Abstract

3D printing technology is one of the latest innovations in the manufacturing industry. One of the uses of 3D printing is manufacturing products and machine components such as making coupling components on the Z axis of a 3D printer machine. 3D printing technology works by extruding thermoplastic filaments to form layers of material gradually. In this research, the filament used is PLA (Polylactic Acid) filament with a diameter of 1.75 mm. This research aims to analyze the effect of process parameters on surface roughness using response surface methodology (RSM). The parameters tested were nozzle temperature (215°C, 230°C, 245°C), layer height (0.2 mm, 0.25 mm, 0.30 mm), and print speed (50 mm/s, 65 mm/s, 80 mm/s). The results showed that nozzle temperature and layer height significantly influenced the surface roughness results. The most optimal process parameters to minimize surface roughness are at nozzle temperature of 249°C, layer height of 0,17 mm, and print speed of 90 mm/s.
Performance Improvement of Coal Dust Briquettes: Application of Taguchi Design and Pareto Analysis for Optimizing Key Processing Variables Dharta, Yuli; Wahyudie, ilham Ary; Sukanto, Sukanto; Husman, Husman; Yuliyanto, Yuliyanto; Oktriadi, Yudi
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 11, No 1 (2025): April
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fwl.v11i1.34541

Abstract

The main challenge in the briquette-making process is selecting the appropriate and proportionate reinforcement or adhesive. The chosen adhesive must not only provide strong adhesion but also be compatible with other components. Briquettes are alternative fuels in solid form, made from carbon-containing materials with a high calorific value, allowing them to burn for an extended period. Coal is one of the alternative materials that can be used for briquettes. The choice of adhesive type and composition directly influences the compressive strength, thermal stability, and durability of briquettes in various environmental conditions. This study aims to investigate how process parameters affect the compressive strength of briquettes produced from coal powder reinforced with molasses, to improve the efficiency of the briquette production process. The methodology used in this study is the Taguchi method. The process parameters include four factors, each with three levels, tested with three replications: the percentage of reinforcement or adhesive at levels of 10%, 12.5%, and 15%; pressure at levels of 8 MPa, 10 MPa, and 12 MPa; temperature at levels of 70 °C, 90 °C, and 110 °C; and heating time at levels of 60 minutes, 90 minutes, and 120 minutes. To enhance the comprehensiveness of the study, several factors, including the moisture content of the briquettes, have also been examined. The results indicate that the temperature during the drying process is the most significant factor influencing the production of these briquettes.
PENINGKATAN SEKTOR PANGAN PENGELOLAAN HASIL LAUT PADA UMKM BERKAH UTAMA SNACK DENGAN PENERAPAN TEKNOLOGI TEPAT GUNA DIKELURAHAN SINAR JAYA SUNGAILIAT BANGKA Oktriadi, Yudi; Yuliyanto, Yuliyanto; Josi, Ahmad; Hasdiansah, Hasdiansah; Afriadi, Achmad; Dafri, Nastiar; Gunadi, Ahmad
Jurnal Pengabdian Masyarakat Polmanbabel Vol. 5 No. 02 (2025): DULANG : Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/dulang.v5i02.714

Abstract

This Community Service Program aims to address production challenges faced by the Berkah Utama Snack business group, which operates in the fishery processing industry, specifically the production of fish crackers and kemplang (fish crackers). The business group, led by Mrs. Rika Trisdasawati, is located in the Sinar Jaya neighborhood of Sinar Jaya Jelutung Village, Sungailiat District, Bangka. The main challenges faced by partners were limited and worn-out production equipment, including worn and unhygienic fish grinding machines, manual kneading processes, and low-capacity packaging equipment. This resulted in a production capacity of only 10 kg per day, insufficient to meet consumer demand. The implementation method for this activity involved six main stages: (1) identifying partner needs through field observations, (2) designing machines according to technical specifications using CAD software, (3) manufacturing machines at the Polman Negeri Babel Mechanical Workshop with the involvement of technicians and students, (4) operational testing with partners, (5) operational mentoring, and (6) technology dissemination to partners. The results of this activity demonstrated significant achievements in the form of the construction and delivery of three production machines. First, a fish grinding machine with a 40x40 mm L-shaped angle iron frame, a 5.5 HP internal combustion engine, and a pulley-belt transmission system. Second, a stainless steel dough mixer with a 550x450x550 mm dough tube, a Ø30x370 mm screw mixer shaft, and a gear system for heavy loads. Third, a packaging machine equipped with a 1500x800x700 mm table stand. This program has succeeded in increasing partners' production capacity, improving the hygiene of the production process, and reducing dependence on manual labor. In addition, this activity also provides appropriate technology transfer to local communities and strengthens the regional economy by increasing the productivity of fishery product processing business groups.
PEMBUATAN KOMPOSIT MATRIK RESIN FENOLIK DIPERKUAT SERBUK LOGAM DAN RHA HIBRID DENGAN METODE METALURGI SERBUK wiryono, sukanto -; Ardiansyah, Ardiansyah; Erwanto, Erwanto; Oktriadi, Yudi
Machine : Jurnal Teknik Mesin Vol 11 No 2 (2025): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/nea0v054

Abstract

Penelitian ini bertujuan untuk menyelidiki pengaruh variasi persentase matriks resin fenolik dan tekanan kompaksi terhadap sifat mekanik dan fisik komposit hibrid berbasis resin fenolik yang diperkuat serbuk logam (aluminium, kuningan, silika) serta abu sekam padi (RHA) menggunakan metode metalurgi serbuk. Persentase matriks yang digunakan adalah 46%, 54%, dan 62%, sedangkan tekanan kompaksi divariasikan pada 5000 Psi, 5300 Psi, dan 5600 Psi, dengan setiap kombinasi diulang sebanyak tiga kali. Uji kekerasan dilakukan menggunakan metode Brinell, dan densitas diukur dengan prinsip Archimedes. Data hasil pengujian dianalisis menggunakan ANOVA faktorial dua faktor untuk mengetahui signifikansi masing-masing variabel. Hasil penelitian menunjukkan bahwa tekanan kompaksi tidak berpengaruh signifikan terhadap kekerasan maupun densitas, sedangkan persentase matriks berpengaruh signifikan terhadap kedua sifat tersebut. Kombinasi optimal diperoleh pada matriks 46 % dan kompaksi 5000 Psi dengan nilai kekerasan 82 HRB. Densitas tertinggi dicapai pada tekanan 5000 psi dan matriks 46%, dengan nilai 1,461 g/cm³. Temuan ini menunjukkan bahwa komposit yang dihasilkan berpotensi kuat sebagai material alternatif ramah lingkungan dan aman untuk kampas rem non-asbes.
MINIMALISASI MINIMUM ZONE CIRCLE MENGGUNAKAN METODE STATIONARY POINT Oktriadi, Yudi; Saputra, Anggi; Kurniawan, Zaldy; Wahyudie, Ilham Ary
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1727

Abstract

The success of the manufacturing world in improving production processes is greatly influenced by the machine equipment used. SKD-11 steel has high wear resistance and good ductility, so it is suitable for components that require high precision and durability. Surface Response Method (RSM) Box-Behnken Design can be used in the optimization process, which has three variables that can predict the best optimum value. The roundness variable used in this research is MZC (Minimum Zone Circle), whose non-roundness value is the difference between the radius of the most extensive circle profile and the smallest circle profile, MZC. From the test results, it was found that the smallest non-sphericity was 7.5 μm. The optimal value for this test is VC 234.784 m/minute, feeding 0.127 mm/rev and depth of cut 0.18 mm, and the predicted response value is 13.05 μm. From the results of the ANOVA analysis, these three factors have no effect on roundness, but there is one factor that almost influences roundness, namely the depth of cut.
Analisis Kelayakan Mesin Frais Vertikal Lagun Fu125 Berdasarkan Ketelitian Geometrik Terhadap Benda Kerja zuladin, yanuar; Oktriadi, Yudi; Erwansyah, Erwansyah
DINAMIKA : Jurnal Teknik Mesin Vol 9, No 1 (2024): Dinamika : Jurnal Teknik Mesin
Publisher : Program Studi Teknik Mesin Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/dinamik.v9i1.7721

Abstract

Pada laboratorium mekanik Politeknik Manufaktur Negeri Bangka Belitung memiliki beragam mesin perkakas, salah satunya mesin frais spindel vertikal lagun fu 125. Mesin ini digunakan sebagai fasilitas pembelajaran praktikum mahasiswa dan juga digunakan untuk keperluan produksi Mesin perkakas dipolman babel terutama mesin frais universal berusia hampir 30 tahun dan sering memproduksi benda kerja berukuran besar. Karena kurangnya perawatan pada mesin ini memungkinkan mesin mengalami penyimpangan melebihi batas toleransi. Oleh karena itu, dibutuhkan pemeriksaan geometrik pada mesin tersebut melalui hasil pemesinan pada benda kerja. Tujuan penelitian ini untuk mengetahui kelayakan mesin dilihat dari hasil proses pemesinan. Penelitian ini menggunakan metode  studi eksperimental. Parameter yang digunakan meliputi; kecepatan spindel ( Rpm) dan kedalaman pemakanan (mm. Berdasarkan penelitian maka pada sumbu X nilai penyimpangan 0,052 mm sehingga dikatakan tidak layak dan harus dilakukan perbaikan. Sedangkan pada  sumbu Y nilai penyimpangan  sebesar - 0,037 mm sehingga dikatakan masih layak.
Fabrication of Aluminium Matrix Composite Powder Reinforced with Silicon Dioxide Tailings for Non-Asbestos Brake Pads (NOB) Sukanto, Sukanto; Wahyudie, Ilham Ary; Erwanto, Erwanto; Oktriadi, Yudi; Rodika, Rodika; Irwansyah, Ricky; Husman, Husman; Saputra, Devrin Dwiki; Algaza, Haradat Tahrir
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.9208

Abstract

Tin mining tailings consist of 80-90% sand and the rest mud.  The high levels of Silicon Dioxide (SiO2) in these tailings are hard and can be used as an added material in the manufacture of composites.  This research aims to study the physical and mechanical properties of metal matrix composites reinforced with SiO2 powder processed by powder metallurgy, as an effort to provide a replacement material for Non-Asbestos (NOB) motorbike brake linings.  The impact of hot compaction pressure in the form of two pressing directions, including 4600, 4500 and 4400 Psi, with a pressing hold of 15 minutes and sintering which includes 30, 20 and 10 minutes, at a temperature of 600 ºC was studied for its effect on hardness and density.  Mechanical blending was used with a horizontal ball mill in the ratio of 10:1 at a speed of 90 rpm for 4 hours.  The test results showed that the greater the hot compaction pressure and the longer the sintering, the higher the hardness and density values.  The highest hardness reached 81.7 HB and the highest density of 2.385 g/cm3 occurred at a bidirectional hot compaction pressure of 4600 Psi, with the lowest wear rate of 0.333 mm3/m. This occurs as a result of the increase in hot compaction has an impact on increasing the contact between powder particles resulting from mechanical alloying to be tighter as a result of which the cavity and porosity decrease
STUDY KASUS NILAI KEKASARAN PERMUKAAN MATERIAL BAJA S45C PADA PROSES PEMESINAN CNC BUBUT Mulyadi, Riyo; Oktriadi, Yudi; Rivai, Muhammad
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In today highly sophisticated manufacturing industry, of course,the best product results are needed. Machining work, especially on CNC turning machining needs to be considered roughness level. The lower the roughness level,  the better the workmanship will be. For this reason it is necessary to pay attention to the parameters used so that the roughness of the product is getting lower. This study aims to determine the best parameters. The machining process is carried out on the MORI SEIKI SL-25B/500 CNC turning and S45C material. Parameters used consist of  feed motion, feed thickness, and spindle speed. The experimental design was based on the taguchimethod with an orthogonal L9(33) matrix and 2 times of replication as a comparison, there was no significant deviation. From the research, the contribution of feeding motion is 49,734%, feeding thickness is 19,239%, and spindle speed is 7,334%. The smallest roughness in the MORI SEIKI SL25B/500 CNC turning machining process was obtained from setting the feed motion 0.2 mm/rev, feeding thickness 1 mm, and spindle speed 2000 rev/minute.
Analisis Pengaruh Cutting Speed, Depth of Cut dan Feed Rate CNC Milling Terhadap Kekasaran Permukaan Aluminium 6061 Menggunakan Respons Surface Methodology (RSM) Asri, Wahyudi; Oktriadi, Yudi; Erwansyah, Erwansyah
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.368

Abstract

The development of modern manufacturing industries demands increased process efficiency and high-precision machining quality. One of the key factors determining product quality is surface roughness, particularly in Aluminum 6061, which is widely used in the automotive and precision manufacturing industries due to its light weight, strength, and corrosion resistance. An improper combination of machining parameters can reduce surface quality and process efficiency. Therefore, this study aims to analyze the effect of cutting speed, depth of cut, and feed rate on the surface roughness of Aluminum 6061 and to determine the optimal parameter combination. The analysis was conducted using the statistical method Response Surface Methodology (RSM). The results show that all three machining parameters significantly affect surface roughness, with the optimal combination obtained at a cutting speed of 70 m/min, feed rate of 318.3 mm/min, and depth of cut of 0.7 mm, producing the lowest surface roughness value of 0.224 µm (Ra).
Pengaruh Parameter Pemesinan CNC Bubut Terhadap MRR dan Kekasaran Permukaan Material ST 37 Menggunakan Metode Taguchi Rifqhi Syahputra, Nova; Oktriadi, Yudi; Dharta, Yuli
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.404

Abstract

The machining process in the manufacturing world greatly influences its quality and productivity. One of the tools in the machining process is a CNC lathe that has parameters for its use process. The process parameters in the CNC machining process are spindle speed, feed rate, and cutting depth. Some aspects that are greatly influenced by process parameters are surface roughness and MRR (Material Removal Rate), which function as efficiency in improving product quality. This study aims to analyse the effect of machining process parameters on surface roughness and MRR on test specimens made of ST 37 material. The method in this study uses the Taguchi method with the aim of increasing productivity and product and process quality. The results of this study show surface roughness based on the use of two types of tools on ST 37 material, with the DNMG 105608-MA tool producing a roughness value of 1.128 µm and the CNMG tool producing a value of 0.865 µm. Meanwhile, the MRR value produced by the DNMG 105608-MA tool is 1,072.8 mm³/s, which is slightly superior to that of the CNMG 120408-MK tool, with an MRR value of 1,032.5 mm³/s.