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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
Saefuloh, Iman
Jurusan Teknik Mesin Fakultas Teknik Universitas Sultan Ageng Tirtayasa
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Pengaruh Variasi Putaran Terhadap Nilai Kekerasan, Kekuatan Tarik dan Struktur Mikro Alumunium Matrix Composite (AMC) Hasil Stir Casting Dengan Paduan Mg dan SiC yang Berlebih Saefuloh, Iman; Pramono, Agus; Latief, Muhamad; Istiqlaliyah, Hesti
Jurnal Mesin Nusantara Vol 2 No 2 (2019): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v2i2.13986

Abstract

Penelitian ini bertujuan untuk menganalisa pengaruh perubahan parameter proses terhadap kekerasan, kuat tarik, dan struktur mikro alumunium matrix composite (AMC) dengan komposisi Al5%Cu-12%Mg-15%SiC setelah melalui proses perubahan varian kecepatan putar, dimana kecepatan stir casting adalah 1000, 2000 dan 3000 rpm. Dari hasil pengujian didapatkan nilai kekerasan tertinggi dicapai pada kecepatan putar 3000 rpm yaitu 105,6 BH dan nilai kuat tarik tertinggi dicapai pada putaran 2000 rpm yaitu 72,7 N/mm2, dan hasil pengamatan struktur mikro menunjukan penguat unsur C, Mg dan SiC lebih merata pada kecepatan putar 2000 dan 3000 rpm. Dari perbedaan perubahan nilai kekerasan, kuat tarik dan struktur mikro tersebut membuktikan bahwa terdapat pengaruh parameter proses perubahan kecepatan putar stir casting terhadap nilai kekerasan, kuat tarik dan struktur mikro AMC.
Sootblower Type Long Retractable Problem Analysis At PLTU Banten 2 Labuan PGU Oetomo, Pandoe Satria; Saefuloh, Iman
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 9, No 2 (2023): October
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fwl.v9i2.26627

Abstract

Sootblower is equipment used to clean slagging or fouling attached to the boiler wall or pipe pipes contained in the boiler. Slagging is coal ash attached to the furnace, on the furnace wall and on the superheater and reheater pipes. At PT. PLN Indonesia Power PLTU Banten 2 Labuan PGU has 4 types of Sootblowers, namely, Short Retractable Sootblower, Long Retractable Sootblower, Semi-Long Retractable Sootblower, Helical Retractable Sootblower. In the results of the analysis for maintenance on this sootblower, it routinely carries out Preventive Maintenance activities every week and also applies every day, then if the replacement of spare parts must use those that have SNI.
21. Pelatihan Penggunaan Aplikasi Menggambar Teknik Berbasis Cad Dalam Meningkatkan Kompetensi Dasar Guru SMK Di Provinsi Banten Syarif Abdullah; Ni Ketut Caturwati; Shofiatul Ula; Imron Rosyadi; Slamet Wiyono; Erny Listijorini; Iman Saefuloh; Yusvardi Yusuf; Miftahul Jannah
Al-Ijtimā': Jurnal Pengabdian Kepada Masyarakat Vol 4 No 1 (2023): Oktober
Publisher : Lembaga Penelitian, Publikasi Ilmiah dan Pengabdian kepada Masyarakat (LP3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53515/aijpkm.v4i1.98

Abstract

One of the basic competencies that Vocational High School (SMK) mechanical engineering teachers must have is being able to draw technically using CAD (Computer Aided Design) based applications. This competency is part of the competency field of study expertise that teachers must have. From the results of observations in the field, it was found that there are still many vocational school teachers in Cilegon City who are still not experts in using CAD-based applications, one of which is SMKS YP Fatahillah 1 Cilegon. As a form of implementation of one of the duties and obligations of the Tri Dharma of Higher Education, the Mechanical Engineering Department of Sultan Ageng Tirtayasa University carries out a community service program, namely training in the use of CAD-based technical drawing applications at SMKS YP Fatahillah 1 Cilegon. This activity was carried out for 3 days and was attended by 24 participants who work as teachers and laboratory assistants at the vocational school. The training method is delivered by lectures, presentations and direct exercises and practice. From this activity, the results showed that there was an increase in the competency of the participants, namely in their ability to draw techniques.
Studi Kekuatan Sambungan Komposit Laminasi Kayu Mahoni Dengan Perekat PVAc Setelah Paparan Air Distilasi, Air Laut, dan Minyak Sayur Burhani, Ichwan; Permana Pinem, Mekro; Ula, Shofiatul; Saefuloh, Iman; Sunardi, Sunardi
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.v3i1.338

Abstract

Laminated composites are composed of multiple layers that work together to achieve specific properties. Several factors influence the strength of these composites, including the quality of the surface layers, the strength of the bonds between layers, the adhesion properties, and the thermal behavior. The adhesive plays a crucial role in connecting the layers to form a laminated composite. This study investigates the effect of environmental exposure on the bond strength between the surfaces of laminated composite layers. The laminated composites are made from mahogany wood and are adhered using PVAc adhesive under a pressure of 2 MPa for 30 minutes. After being prepared, the samples are allowed to sit for several days before being immersed in distilled water, seawater, and vegetable oil. Each immersion lasts for 24 hours. The results indicate that the laminated composites experienced a degradation of mechanical properties following exposure to distilled water, seawater, and vegetable oil. Among these, distilled water had the most detrimental effect on the performance of the laminated composite, while exposure to vegetable oil resulted in relatively insignificant changes to its mechanical properties.
Perilaku Laju Keausan dan Kekerasan Komposit Epoksi yang Diperkuat dengan Serat Gelas dan Partikel Bambu Sunardi Sunardi; Shafnur Hamdi; Iman Saefuloh; Agung Sudrajad; Shofiatul Ula; Moh. Fawaid
Jurnal Teknik Mesin (Sinta 3) Vol. 21 No. 2 (2024): OCTOBER 2024 (SINTA 3)
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.21.2.64-72

Abstract

Penggunaan material organik dalam komposit mengalami perkembangan yang sangat menarik. Kondisi ini tidak dapat dipisahkan dari semakin menguatnya isu lingkungan. Pembatasan penggunaan bahan-bahan yang dapat mencemari lingkungan harus dilakukan untuk menjaga itu keberlanjutan. Partikel yang dilepaskan dari komposit, sebagai debris keausan harus aman untuk kesehatan dan lingkungan. Kontribusi penelitian ini adalah eksplorasi material ramah lingkungan untuk aplikasi kampas rem di bidang otomotif. Penelitian ini menggunakan partikel bambu dan seng sebagai filler, serat kaca sebagai penguat komposit, dan epoksi sebagai matriks yang mengikat semua itu gabungan material. Pembuatan sampel dilakukan dengan menggunakan kompaksi dingin dengan tekanan yang berbeda-beda, yaitu 20, 30, dan 40 MPa. Proses selanjutnya adalah curing dengan memanaskan sampel di dalam oven listrik pada suhu 150 °C selama 1 jam. Hasil ekperimen menunjukkan bahwa kompaksi memiliki pengaruh signifikan terhadap performa komposit yang dihasilkan. Pada tekanan kompaksi 20 MPa menghasilkan densitas 1,58 g/cm3, kekerasan 15,30 BHN, dan laju keausan 6,16 x 10-6 g/mm2.s. Pada tekanan kompaksi 30 MPa menghasilkan densitas 1,62 g/cm3, kekerasan 16,33 BHN, dan laju keausan 5,66 x 10-6 g/mm2.s, sedangkan pada tekanan kompaksi 40 MPa memiliki densitas, kekerasan dan laju keausan masing-masing adalah 1,66 g/cm3, 17,67 BHN, dan 5,48 x 10-6 g/mm2.s. Densitas, kekerasan, dan ketahanan aus material mengalami peningkatan seiring dengan tekanan kompaksi pada saat proses manufaktur.
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.
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.
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.
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. 
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.
Co-Authors Abdurrofi Zahrawani Achmad Nurhidayat Achmad, Zainuri Agung Sudrajad Agus Pramono Ahmad Bahrul Ulum Ahmad Rifa’i Alhamidi, A. Ali Alhamidi, Ahmad A Aris Munandar Aswata Aswata Aziz, Abdul Bintang Adjiantoro Brian Laksana Gemilang Burhani, Ichwan Daris Miftah Dzaky Deprilen Dacha 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 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 Nurwijayanti Oetomo, Pandoe Satria Panji Setyo Aji Permana Pinem, Mekro Pinem, Mekro Permana 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 Suryana, Suryana Syarif Abdullah Ula, Shofiatul Wahyudi, Hadi Wijoyo Wijoyo Wijoyo Wijoyo Willy Jamaludin Wiyono , Slamet Yuda Permana, Ananto Yusuf , Yusvardi Yusvardi Yusuf