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JMPM (Jurnal Material dan Proses Manufaktur)
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 25803271     EISSN : 26565897     DOI : 10.18196/jmpm
Core Subject : Engineering,
Engineering Mechanical Engineering
Jurnal Material DAN Proses Manufaktur focuses on the research and research review in the field of engineering material and manufacturing processes. The journal covers various themes namely Design Engineering, Process Optimization, Process Problem Solving, Manufacturing Methods, Process Automation, Material research and investigation, Advanced Materials, Nanomaterials, Mechanical solid and fluid, Energy Harvesting and Renewable Energy.
Arjuna Subject : -
Articles 275 Documents
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Analisis Sistem Pendingin Baterai Li-Ion Berbentuk Silindris Menggunakan Metode Computational Fluid Dynamics (CFD) Ardhyanti, Novi; Salim, Alfi Tranggono Agus; Apriyanto, R. Akbar Nur
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19334

Abstract

Penurunan kinerja baterai, cycle life, dan safety baterai disebabkan faktor kerja baterai LiFePo4 (Lithium iron phosphate) melebihi temperature operasional 40OC. Permasalahan penelitian adalah distribusi panas dengan variasi sistem pendinginan dan pengaruh fluida untuk baterai LiFePo4. Tujuan penelitian adalah menganalisis persebaran panas baterai dan temperature baterai LiFePo4 dibawah temperature operasional. Metode penelitian adalah kuantitatif eksperimen, dengan dilakukan simulasi Computational Fluid Dynamics (CFD) untuk sistem pendingin baterai LiFePo4. Baterai LiFePo4 tanpa pelat pendingin disimulasikan untuk hasil temperature maksimum baterai. Temperature operasional baterai lebih rendah 40OC dengan tambahan pelat pendingin yang dirangkai pada baterai dengan variasi fluida air dan udara yang mengalir dalam pelat pendingin. Hasil dan kesimpulan penelitian adalah data kenaikan temperature maksimum baterai 1,2OC dan persebaran panas yang merata pada permukaan baterai dengan variasi pelat pendingin yang dialiri fluida air.
Analisis Pengendalian Risiko Keselamatan dan Kesehatan Kerja (K3) dengan Metode Failure Mode and Effect Analysis (FMEA) pada PT. ABC Saputra, Bisma Rahmad; Widodo, Imam Djati
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19405

Abstract

PT. ABC is engaged in metal casting such as drinking water pipe connections and quality drainage components. Existing manufacturing processes involve direct interaction of workers with equipment in production situations that have sufficiently high safety risks. The research aims to identify the type or source of hazard, determine the value of high risk, and appropriate risk control measures. Using the Failure Mode and Effect Analysis (FMEA) method to identify failures from facilities, systems or equipment that have an impact on work accidents. The results of the study found 48 hazards with identifying the risk of work accidents with categories are very low (7), low (48), medium (17), high (10) and there is no risk of work accidents with very high categories. Work accidents that have a high risk in the metal casting process at PT. ABC is at the die-making, smelting and pouring, roughing, and finishing work stations. Potential risks to work safety include dust from mixing, being crushed by solid iron, exposed to sparks, exposed to molten liquids, electrocuted, and exposed to odors from paint. Risk control measures are proposed in the metal casting process at PT. ABC is carried out with engineering control and the use of PPE according to the source of danger.
Analysis of Coir Fiber/Wood Paint as Composite Anti-Weathering Coatings on Traditional Fishing Boats Sunarsono, Hery; Handayani, Vitri Aprilla; Irianto, Ardhiya Syifa; Rahmad, Rahmad; Azzahra, Nabila
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19447

Abstract

The low resistance of wood as a frame material for traditional fishing boats against splashing sea water, humidity, and high-temperature fluctuations was studied in this study by adding coconut coir fiber to wood paint, where this mixture will become an anti-weathering composite material. To make compatibility between the fibers from coir which are water-absorbing (hydrophilic) and alkyd paints which are water-repellent (hydrophobic), the author gives special treatment to the coco fibers through an acetone pre-treatment process and hot alkali (hot alkali treatment) by soaking fiber in 10% high-temperature sodium hydroxide NaOH solution. Soaking in this solution is able to modify fibers that have a rough surface and reduce hydrogen bonding thereby improving the interfacial bond between the fiber and the filler in the composite. The results obtained were that the addition of fiber with a weight fraction of 3.40% to the alkyd paint matrix made the composite the most optimal anti-weathering coating.
Analisis Proses Laser Cutting dengan Variasi Cutting Speed, Jarak Focusline, dan Gas Pressure Terhadap Kekerasan dan Kekasaran Material MS SPHC Nugraha, Aditya; Pradana, Ilham Wahyu; Nugroho, Yohanes; Nugroho, Adi
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19459

Abstract

Laser cutting merupakan teknologi pemotongan sheet metal menggunakan media laser yang dipadukan sistem CNC. Permasalahan proses laser cutting yaitu kecacatan permukaan hasil pemotongan dan peningkatan kekerasan material pada area permukaan hasil pemotongan laser cutting, disebabkan oleh ketidaksesuaian variasi parameter. Parameter laser cutting dalam penelitian ini yaitu cutting speed, jarak focusline, dan gas pressure. Variasi parameter cutting speed yang diteliti adalah 1440 m/min, 1620 m/min, dan 1800 m/min. Variasi jarak focusline yang diteliti yaitu 5,5 mm, 6,0 mm, dan 6,5 mm. Variasi parameter gas pressure yang digunakan yaitu 0,5 bar, 0,7 bar, dan 0,9 bar. Metode Taguchi digunakan untuk mendapatkan variasi dengan nilai kekerasan dan kekasaran permukaan material yang minimum. Kekasaran permukaan diuji menggunakan surface roughness tester, kekerasan permukaan diuji menggunakan hardness tester brinel. Besarnya pengaruh setiap parameter di analisis menggunakan metode ANOVA. Hasil penelitian menunjukkan parameter jarak focusline memiliki pengaruh terbesar terhadap kekasaran permukaan dengan persentase 50,385 %, parameter gas pressure adalah parameter yang paling berpengaruh terhadap kekerasan permukaan dengan persentase 54,241 %. Nilai kekasaran minimum dapat dicapai dengan parameter cutting speed 1800 m/min, focusline 5,5 mm, dan gas pressure 0,5 bar. Nilai kekerasan minimum dicapai dengan cutting speed 1800 m/min, focusline 6,5 mm, dan gas pressure 0,5 bar.
Analisis Kebisingan dan Karakteristik Akustik Pengaruh AC Pada Kabin Penumpang Kereta Stainless Steel Artianingrum, Imerlipta Sekar; Salim, Alfi Tranggono Agus; Rezika, Wida Yuliar; Hibbanurrohim, Muhammad Ibram; Nurdiansyah, Rahardian Titus
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19530

Abstract

Faktor yang berpengaruh terhadap operasional dan kenyamanan penumpang pada kereta api adalah kebisingan. Permasalahan penelitian adalah kebisingan yang disebabkan pengkondisian udara (AC) dan karakteristik akustik di kabin penumpang kereta stainless steel terhadap syarat kelayakan operasional. Tujuan penelitian adalah menganalisis kebisingan dan karakteristik akustik dan persebaran kebisingan di kabin penumpang kereta stainless steel. Metode penelitian yang digunakan adalah kuantitatif eksperimental yang mengacu ISO 3381:2011 untuk pengukuran kebisingan dan ISO 3382:2009 untuk karakteristik akustik. Hasil penelitian adalah tingkat kebisingan di kabin penumpang kereta stainless steel meningkat linier dengan peningkatan ketinggian pengukuran dan nilai waktu dengung menunjukkan variasi yang berbeda pada setiap frekuensi. Kesimpulan penelitian adalah kabin penumpang kereta stainless steel memenuhi kriteria keberterimaan Peraturan Menteri Perhubungan Nomor: KM. 41 Tahun 2010 dengan hasil kebisingan di bawah 85 dBA dan memenuhi kriteria ruangan yang berfungsi untuk kegiatan percakapan dengan rentang nilai waktu dengung antara 0,197 – 0,357 second.
Fabrikasi Papan Serat Tandan Kosong Kelapa Sawit dengan Penambahan Bahan Fluoresensi Fosfor Husna, Ropiqotul; Yana, Debi; Kusmawati, Intan; Aisah, Nurul; Ginting, Delovita; Syahputra, Romi Fadli
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19615

Abstract

Serat bahan alam dapat dijadikan pengganti material komposit yang ramah lingkungan. Serat tandan kosong kelapa sawit (TKKS) merupakan salah satu serat alam hasil pengolahan industri kelapa sawit yang tersedia dalam jumlah yang besar. Pemfaatan serat TKKS sebagai papan serat yang inovatif belum banyak dikaji secara fisis. Penambahan zat aditif fluorosensi memberikan keunggulan produk kayu maupun papan serat agar memiliki nilai estetika yang tinggi. Tujuan penelitian ini memfabrikasi biokomposit papan serat inovatif berbasis serat TKKS dengan penambahan bahan fluoresensi fosfor. Papan serat difabrikasi dengan metode hand lay-up dan cold compaction. Komposisi utama papan serat terdiri atas serat TKKS, resin epoxy, dan 5 g bubuk posfor. Kandungan serat TKKS divariasikan mulai dari 76% sampai 86%. Hasil pengujian fisis menunjukkan nilai densitas papan serat berkisar 0,34 - 0,59 g/cm³ dan daya serap airnya 105,22 - 156,475%. Nilai kapasitas panas spesifik papan serat berikisar 0,34 - 2,2 J/g˚C dan konduktivitas termalnya 0,001-0,002 W/mK. Sementara, besar bending strength sebesar 1,30 – 6,42 Mpa yang relatif sebanding dengan papan serat bio-komposit. Penambahan fosfor berpengaruh terhadap sifat termal papan serat, sehingga cukup baik bila diaplikasikan sebagai bio-insulator yang memiliki fitur fluorosensi.
Fabrication of Anti-Termite Particle Boards Made from Bintaro (Cerbera Manghas): Analysis of Physical and Mechanical Properties Ginting, Delovita; Azizah, Nur
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19724

Abstract

Termites are commonly seen as a nuisance due to their capacity to cause harm to wooden objects. The occurrence of termite infestations on furniture has led to a rise in financial damages attributed to such attacks. Hence, it is of utmost need to seek alternative raw materials that exhibit resistance to termite-induced deterioration, thereby fulfilling the requirement for substituting particle board. The present study has successfully demonstrated the fabrication of particle board by including bintaro fruit seed filler and urea formaldehyde matrix. The primary objective of this research endeavor was to explore an alternate approach to standard particle board production, specifically focusing on the development of anti-termite qualities. The filler fraction to matrix fraction comparison exhibits variations of 50:50, 60:40, 70:30, and 80:20. The particle board production process employed in this study utilizes a cold pressing method, wherein a pressure of 15 MPa is applied for a duration of 120 minutes. The board particles that have been acquired are subjected to testing in order to ascertain their physical characteristics, such as density and water content. The experiment was conducted in compliance with the SNI Standard 03-2105-2006. The flexural strength of particle board was evaluated in accordance with the standard SNI 03-2105-2006. An assessment was conducted to evaluate the susceptibility of particle board to termite infestation, in accordance with the guidelines outlined in the SNI 01-7207-2006 standards. The density and moisture content testing findings conducted on particle board match with the specifications outlined in the SNI 03-2105-2006 standard. The experimental outcomes evaluating the susceptibility of board particles to termite infestations have effectively fulfilled the requirements outlined in the SNI 01-7207-2006 standards.
Application of Short Time Fourier Transform (STFT) For Diagnosing Rolling Bearing Faults Kamiel, Berli Paripurna; Fadilah, Muhammad Rizki
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19813

Abstract

A fan is crucial for maintaining airflow in industries. Bearings in fans prevent friction and must be robust to function effectively. Damage to the bearings can diminish machine performance. Predictive maintenance is essential for early detection of faults. One way to analyze bearing faults is by using the Short Time Fourier Transform (STFT), as it excels in analyzing non-stationary signals. Experiments were conducted under normal conditions and with inner race faults in bearings at a shaft speed of 1162.5 Hz. Vibration detection was done using an accelerometer sensor, and Matlab analysis was employed. The data was processed using the Fourier Transform (FT) method through both time and frequency domains, as well as the STFT through spectrograms. In the spectrum plot, there is still a significant amount of noise present. This high amplitude of noise from other frequencies obscures the bearing fault amplitudes. Furthermore, the Fourier Transform (FT) is only suitable for analyzing stationary signals. To address this, an envelope analysis was used to filter out the noise. The STFT analysis method provides simultaneous frequency and time information. This reveals that the spectrogram results for inner race faults depict three high amplitude peaks at harmonic frequencies. This indicates that the signal is non-stationary due to fluctuating amplitudes, making bearing fault analysis more accessible.
Analisa Perbandingan Desain Panel Distribusi dengan Metode Computational Fluid Dynamics Hutama, Adhi Setya; Kurniawan, Yohanes Hendra; Jati, Fajar Pranawa; Samodra, Yudha
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19905

Abstract

A distribution panel is a piece of equipment or device that consists of several electrical components that are arranged and arranged in such a way that they can distribute electrical power, and its use must guarantee security for users, so a Type-test is needed to determine the security of the distribution panel, one of the type-test tests is the temperature rise test. The temperature rise test was successfully carried out, but there are still problems, namely the heat distribution is unknown. The Computational Fluid Dynamics (CFD) method with flow simulation software can be used for heat transfer analysis in distribution panel systems, so that an ideal panel design is obtained to overcome overheating. The CFD analysis process is carried out by comparing 3 distribution panel designs, namely the first design using an exhaust fan, the second design with one output ventilation, and the design without an exhaust fan. Based on the results of the CFD analysis, the safest distribution panel results were obtained, namely the first design using an exhaust fan, the design with an exhaust fan experienced a temperature drop of 4°C compared to the design without an exhaust fan and the second design when viewed from surface 9.
Pengaruh Densitas dan Viskositas terhadap Sudut Injeksi Biodiesel Jatropha-Jagung (1:4 dan 4:1) Wahyudi, Wahyudi; Caroko, Novi; Sampurna, Hanif Budi
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.20072

Abstract

Biodiesel has attracted attention as an alternative fuel in efforts to reduce emissions and dependence on fossil fuels. Among various potential sources for biodiesel production, jatropha and corn oil have stood out due to their availability and high yield potential. However, each has unique characteristics that affect their performance as fuels. Jatropha oil has relatively high viscosity, while corn oil is generally used as a food ingredient. This study aimed to explore the potential of combining jatropha and corn biodiesel in different proportions and its impact on fuel characteristics and diesel engine spray injection. Both types of oil were processed into biodiesel through esterification and transesterification processes. Subsequently, biodiesel mixtures were created in ratios of 1:4 and 4:1. Each mixture was then varied with diesel to produce B5, B10, B15, B20, B25, B30, B35, and B40. Each sample was tested for its physical properties such as density and viscosity, and injection spray angle. The results of this study indicated that the density and viscosity values of the 1:4 jatropha-corn biodiesel mixture were lower than those of the 4:1 jatropha-corn biodiesel mixture. There was a significant relationship between viscosity and density with the injection angle. The higher the density and viscosity, the narrower the injection angle.

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