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All Journal Jurnal Teknik Mesin Rotasi Rekayasa Mesin FLYWHEEL : Jurnal Teknik Mesin Untirta Teknika: Jurnal Sains dan Teknologi DINAMIKA Jurnal Ilmiah Teknik Mesin Jurnal Rekayasa Mesin Jurnal Pendidikan Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN Journal of Energy, Mechanical, Material and Manufacturing Engineering INTEK: Jurnal Penelitian Barometer Jurnal Teknik Mesin Jurnal Mesin Nusantara Malikussaleh Journal of Mechanical Science Technology Al-Ijtima: Jurnal Pengabdian Kepada Masyarakat Jurnal Inovasi Teknologi Terapan Trends in Mechanical Engineering Research Al-Ijtimā: Jurnal Pengabdian Kepada Masyarakat Jurnal Pendidikan Teknik Mesin
Saefuloh, Iman
Jurusan Teknik Mesin Fakultas Teknik Universitas Sultan Ageng Tirtayasa
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Journal : trends in mechanical engineering research

 1 
MECHANICAL PROPERTIES CHARACTERIZATION OF THE FRICTION WELDING OF ALUMUNIUM WITH COPPER USING VARIATIONS IN ROTATIONAL SPEED AND CONTACT SURFACE ROUGHNESS Saefuloh, Iman; Sunardi, Sunardi; Lusiani, Rina; Jannah, Miftahul; Suryana, Suryana
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25672

Abstract

One of the welding used for different materials is by using friction welding. Friction welding is a welding method by swiping the two materials until they reach some of the melting points of the materials to be joined and then subjected to constant pressure. In this study, the materials to be joined were aluminum and copper. By using variations of rotational speed and contact surface roughness, the mechanical properties of the welds were investigated. The speed variations used were 1230, 1500, and 2500 rpm. Meanwhile, for variations in surface roughness, sandpaper grades 100, 800, and 1500 were used. The results of this study were that at a rotational speed of 1230 rpm, the highest tensile strength and hardness values were obtained, namely 59.6 MPa and 54.6 HVN (Al), 112.1 HVN (Cu). For variations in surface roughness, the highest hardness value was found in surface roughness using sandpaper grade 1500, namely 54.18HVN (Al), and 112.1HVN (Cu). And the highest tensile strength is obtained on grade 100 sandpaper with a value of 52.48MPa. The results of the microstructure test in the weld joint area with a magnification of 1000x showed that the welding of aluminum and copper using the friction welding method was successful, as evidenced by the diffusion of aluminum and copper in this area.
STUDY OF PARTICLE BOARDS CHARACTERISTIC BASED ON SENGON WOOD PARTICLE AND OIL PALM EMPTY FRUIT BUNCHES Sunardi, Sunardi; Putra, Rizky Kurnia; Lusiani, Rina; Saefuloh, Iman; Sudrajad, Agung
Trends in Mechanical Engineering Research Vol 1, No 1 (2023): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i1.20477

Abstract

Oil palm empty fruit bunches (OPEFB) as a by-product of the palm oil processing industry. This waste can cause problems for the environment and human health. Utilization of OPEFB waste as particle board material to reduce this waste. The composition of the particle board is based on volume fraction, namely 15% empty palm fruit fiber, 15% epoxy resin, 20% PVAc adessive, and 50% sawdust. The manufacturing process of samples was carried out using the single punch cold press method with compaction pressure of 10, 30, and 50 bar. The experimental results show that a compacting pressure of 10 bar can produce particle board performance according to SNI 03-2105-2006 with a characteristic density of 0.93 gram/cm3, thickness swelling of 2.52%, hardness of 24 N/mm2, flexural strength of 840.05 N/mm2, and impact strength 6.00 kJ/m2.
THE EFFECT OF VOLUME FRACTION AND FIBER LENGTH ON THE TENSILE AND IMPACT STRENGTH OF SILK FIBER REINFORCED COMPOSITES sinarep, Sinarep; Muhamad, Ardani; salman, Salman; Saefuloh, Iman; Achmad, Zainuri
Trends in Mechanical Engineering Research Vol 1, No 1 (2023): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i1.20848

Abstract

Material engineering technology every year always makes new breakthroughs in creating high-quality materials and have an adequate contribution. Natural fiber reinforced composite material is one of the materials currently used as fillers in composite products. Composite with natural income also has a variety of advantages offered, namely low prices and abundant availability. This study discusses the fraction of fiber volume and fiber length on the tensile strength and impact of fiber reinforced silk fibers (Samia chynthia rucini). In this study the volume fractions of fiber used were 10%, 15% and 20% with a fiber length of 10 mm and 50 mm using an epoxy resin matrix. From the composite tensile test results prove the increase in tensile strength obtained increases the volume of silk fiber in the composite. 20% with a fiber length of 10 mm is 6.859 MPa, while the lowest tensile strength value in composites with a fiber volume fraction of 0% is 1.653 MPa. The impact test shows the strength of 10% fiber volume fraction composite with 10 mm fiber length that is 0.54535 J/mm2, while the lowest impact strength value is 0% fiber volume fraction composite that is 0.50686 J/mm2. 
PREVENTIVE MAINTENANCE OF AIR HEATER ON BOILER UNITS 1- 4 AT PT. PLN INDONESIA POWE SURALAYA PGU Putra, Styven Handoyo; Notonegoro, Hamdan Akbar; Saefuloh, Iman; Wahyudi, Hadi; Sudrajad, Agung; Alhamidi, A. Ali
Trends in Mechanical Engineering Research Vol 2, No 1 (2024): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i1.26164

Abstract

One of the components used in power plants in boilers is the water heater. Of course, it has a very important role in the power plant. Its function is that it is very tight in the steam power plant, making the air heater work 24 hours, so its use is quite important. Knowing the function and usefulness of the Air Heater is important enough to require proper preventive. PT. Indonesia Power Suralaya PGU applies very strict Maintenance because of the losses experienced if the plant has damage which causes the unit to be forced to stop then the loss experienced is also very large. Preventive Maintenance performed on the Air Heater is done by looking at the condition visually and sound as the cornerstone of the repair analysis so that the treatment effort can be done well in terms of tightening, lubricating, and cleaning 32 minutes is the effective time an inspection is carried out whether there is significant damage or not. At the PM in the Air Heater found the effective run time every day is 2 hours 59 minutes when no indication of damage is found.
PREVENTIVE MAINTENANCE IN THE COLD SAW AREA AT PT. KBK Hidayat, Rahmat; Rosyadi, Imron; Pinem, Mekro Permana; Sudrajad, Agung; Saefuloh, Iman; Erwin, Erwin
Trends in Mechanical Engineering Research Vol 2, No 2 (2024): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i2.30950

Abstract

In an increasingly competitive industrial environment, effective maintenance strategies are critical to ensure optimal machine performance and minimize downtime. This report focuses on the implementation of preventive maintenance in the cold saw area at PT. KBK, a steel production company. Preventive maintenance procedures were carried out to sustain machine reliability, particularly focusing on components such as the roll table, bolt coupling motor translation, sliding rails, and hydraulic motors. The report outlines the preventive maintenance schedule, inspection processes, and key findings during the maintenance period. The most frequently encountered issue was the deterioration of the saw blade, affecting cutting quality and operational efficiency. Contributing factors to these issues include human error, material hardness, improper maintenance methods, and machine age. A fishbone diagram analysis was used to determine root causes of failures, highlighting areas for improvement in maintenance practices. The study concludes that consistent preventive maintenance is essential to reduce machine failures, enhance productivity, and improve product quality. Recommendations are provided to enhance the maintenance process, including increased use of personal protective equipment (PPE) and more stringent inspection protocols.
Co-Authors Abda Abda Abdurrofi Zahrawani Achmad, Zainuri Agung Sudrajad Agus Pramono Ahmad Bahrul Ulum Ahmad Rifa’i Alhamidi, A. Ali Alhamidi, Ahmad A Alhamidi, Ahmad Ali Alhamidi, Ahmad Ali Aris Munandar Aswata Aswata Aziz, Abdul Bintang Adjiantoro Brian Laksana Gemilang Burhani, Ichwan Daris Miftah Dzaky Deprilen Dacha Dhimas Satria Dwinanto Dwinanto Dwinanto, Dwinanto Edwin Prasetya Eko Surjadi Erni Listijorini Erny Listijorini Erwin, Erwin Gilang Aji Prayoga Hamdan Akbar Notonegoro Hamdan Akbar Notonegoro Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Hermawan Susanto Hesti Istiqlaliyah Hidayat, Rahmat Imron Rosyadi Imron Rosyadi Indah Uswatun Hasanah Ipick Setiawan Ipick Setiawan Ipick Setiawan Ipick Setiawan Ipik Setiawan Jannah, Miftahul Latief, Muhamad Listijorini , Erny Listijorini, Erny Lusiani, Rina Lusiani, Rina Mahendra, Brillian Ardy Maulana Fazdri Miftahul Jannah Miftahul Jannah Moh Fawaid Muhamad Rizki Mutaqien Muhamad, Ardani Muhammad Gema Winisuda Muhammad Nurul Huda Mujahid Mujahid Murni Handayani Ni Ketut Caturwati, Ni Ketut Notonegoro, Hamdan Akbar Notonegoro, Hamdan Akbar Nufus Kanani Nugraha, YangYang Gilang Nurwijayanti Oetomo, Pandoe Satria Panji Setyo Aji Permana Pinem, Mekro Pinem, Mekro Permana Pranata, Anugrah Surya Arya Putra, Rizky Kurnia Putra, Styven Handoyo Randu, Randu Rhaka Qudzsy Wening Praja Ricki Hikmatullah Rina Lusiani Rispan, Wahyu Rohmat, Agus Rosyadi , Imron Rosyadi, Imron S Sunardi S Suryana salman, Salman Satrio Herbirowo, Satrio Shafnur Hamdi Shofiatul Ula Sidik Susilo sinarep, Sinarep Slamet Wiyono Slamet Wiyono Sudrajad, Agung Sunardi Sunardi Sunardi, Sunardi Sunardi, Sunardi Sunardi, Sunardi Suryana, Suryana Syarif Abdullah Ula, Shofiatul Wahyudi, Hadi Wijoyo Wijoyo Wijoyo Wijoyo Willy Jamaludin Wiyono , Slamet Yuda Permana, Ananto Yusuf , Yusvardi Yusuf, Yusvardi Yusvardi Yusuf