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All Journal Publikasi Pendidikan Jurnal Teknik Mesin Program Kreativitas Mahasiswa - Teknologi Turbo : Jurnal Program Studi Teknik Mesin JMM (Jurnal Masyarakat Mandiri) Sarwahita : Jurnal Pengabdian Kepada Masyarakat Community Development Journal: Jurnal Pengabdian Masyarakat Quantum Teknika Creative Research in Engineering (CERIE) Jurnal Polimesin Jurnal JEETech Mekanika: Jurnal Teknik Mesin
Fatkhurrohman Fatkhurrohman
Program Studi Teknik Mesin, Universitas Pembangunan Nasional Veteran Jawa Timur
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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MODIFIKASI MESIN PENGEPRES SARI BREM SISTEM HIDROLIK UNTUK MENINGKATKAN KUALITAS DAN KUANTITAS PRODUKSI UKM BREM MADIUN F., Fatkhurrohman; M., Muji; Wijendra, Sutra Angga
Program Kreativitas Mahasiswa - Teknologi PKM-T 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (90.677 KB)

Abstract

SME partners making brem business activity is managed by Mrs. Sukiati at Kaliabu village located at Madiun. Based on observations and interviews conducted by the team this PKM SME partners that the data obtained in the pressing process to take the juice of raw material is done manually. White glutinous pressing process (raw material brem) was performed using a less efficient equipment (12kg/process limited capacity). Besides, the pressing tool is not hygienic (wood and bamboo). Purpose of this activity is to improve productivity of SMEs with indicators: (1) accelerate the process of pressing sticky tape material originally brem 150 kg/day to 300 kg/day; (2) improve the quality of production, due to the changing methods performed manually are now becoming more hygienic. Expected outcomes of the event realization sticky tape pressing machine of the hydraulic system as a raw material brem. The result of activities are: (1) the realization of sticky tape pressing machine hydraulic system, (2) the process of pressing sticky tape material brem be over 2 times faster than the original 150 kg/day to 300 kg/day, (3) qualities brem production increases, because the pressing tool originally done using wood and bamboo are now becoming more hygienic done by machine.
STUDI FRAKSI VOLUME SERAT TERHADAP KEKUATAN TARIK KOMPOSIT POLYESTER BERPENGUAT SERAT POHON AREN (IJUK) FATKHURROHMAN,
Jurnal Teknik Mesin Vol 4, No 02 (2016): JTM : Volume 04 Nomor 02 Tahun 2016
Publisher : Jurnal Teknik Mesin

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Abstract

Abstrak             Komposit merupakan bahan yang terdiri dari matriks, serat dan katalis. Dalam penelitian ini digunakan matriks polyester BQTN 157, serat pohon aren (ijuk) dan katalis methil ethyl keton peroxide. Tujuan dari penelitian ini yaitu untuk mengetahui kekuatan tarik pada bahan komposit berpenguat serat pohon aren (ijuk) dan mekanisme kegagalan dan bentuk penampang patahan setelah dilakukan pengujian tarik. Dalam penelitian ini serat pohon aren (ijuk) direndam didalam larutan alkali 5% NaOH selama 2 jam, lalu serat pohon aren (ijuk) dibuat bahan komposit dengan variasi fraksi volume serat 20%, 30%, 40%, 50%, dan 60%. Metode pembuatan bahan komposit dilakukan dengan metode hand lay-up dan metode press mold, untuk spesimen pengujian tarik mengacu pada standart ASTM D-638. Dari data hasil pengujian tarik diperoleh kekuatan tarik tertinggi terdapat pada fraksi volume serat 40% yaitu sebesar 24,65 MPa, sedangkan untuk kekuatan tarik terendah terdapat pada fraksi volume serat 20% yaitu sebesar 17,55 MPa. Untuk bentuk penampang dari bahan komposit setelah dilakukan pengujian tarik terdapat dua jenis, yaitu fiber pull out dan delamination.   Kata kunci : komposit polyester, serat ijuk, fraksi volume serat, kekuatan tarik
Analisis Kekuatan Bending Komposit Lamina Serat Ijuk Anyam dan Serat Ijuk Acak bermatriks Polyester Fatkhurrohman Fatkhurrohman; Ismail Ismail; Ferriawan Yudhanto
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.16593

Abstract

The current automotive industry uses composite materials as an alternative material to replace metal or plastic, due to the advantages of composite materials that have biodegradable properties and support environmental sustainability. Composite materials can be used as car body protectors, as a protector composite materials must withstand compressive loads. Referring to this, the research will be carried out through flexural testing. Study aim is to analyze variations of fiber volume fraction effect to the flexural strength. Method of making composite materials using hand layup then press mold, variations in fiber volume fraction 25%, 30%, 35%, 40%, and 45%. Flexural testing is carried out according to ASTM D-790. The morphology analysis was also carried out on the fractures of result of flexural test. Flexural testing results show that the highest flexural strength is founded in the fiber volume fraction 50% and the lowest flexural strength is founded in the fiber volume fraction 25%, 724.4 MPa and 435.8 MPa, respectively. A suitable composition in the fiber volume fraction of 40% can produce an optimal bond between the matrix and the fiber. Observing the morphology of the fracture and the cross-section of the fracture flexural testing results, it was found that there were fiber fractures with the characteristics of fiber pullout and delamination in each test specimen.
PENYULUHAN PEMANFAATAN LIMBAH PERTANIAN UNTUK PAKAN TERNAK ALTERNATIF MENGGUNAKAN MESIN PENCACAH RUMPUT MULTIFUNGSI DENGAN PROSES AMONIASE PADA KELOMPOK TERNAK MAKMUR DESA KEBONDALEM, JOMBANG Fatkhurrohman; Mohammad Mufti; Mohamad Rifan Fathurahman
Bahasa Indonesia Vol 19 (2022): Sarwahita : Jurnal Pengabdian Kepada Masyarakat Vol. 19 Edisi Khusus Tahun 2022
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/sarwahita.19k.7

Abstract

The quantity of animal feed in Kebondalem Village in the form of green grass during the rainy season is very abundant, but during the dry season is very low. On the other hand, during the dry season, agricultural wastes such as rice straw, corncobs, and soybean trees are very abundant but have not been fully utilized by kelompok ternak Makmur as animal feed. Utilization of agricultural waste can be increased by making alternative animal feed from agricultural waste as an effort to fulfill the quantity of animal feed. The ammoniase method was chosen for make of alternative animal feeds because it is cost-effective and easy to do. Animal feed that have needed for kelompok ternak Makmur reaches 600 kg/day so that in the process of counting agricultural waste before making ammonia, it is done using a multifunctional grass chopper. The machine used has a capacity of 500 kg/h. Based on the calculations, it was found that to fulfill animal feed during the dry season (6 months) it required 108,000 kg of feed, using a multifunctional grass chopper it took 27 days to meet the needs of animal feed for 6 months with an estimated machine usage of 8 hours/day. Extension activities on the operation of the machine and the making of alternative animal feed using the ammoniase method have been carried out. From the calculations and the kelompok ternak Makmur readiness to receive the extension material provided, it is very likely that the problem related to the low quantity of animal feed in the dry season has been resolved. Abstrak Kuantitas pakan ternak di Desa Kebondalem berupa rumput hijau saat musim hujan sangat melimpah, namun saat musim kemarau kuantitasnya sangat sedikit. Disisi lain, saat musim kemarau limbah pertanian seperti jerami padi, bonggol jagung dan pohon kedelai kuantitasnya sangat melimpah tetapi belum sepenuhnya dimanfaatkan oleh kelompok ternak Makmur sebagai pakan ternak. Pemanfaatan limbah pertanian dapat ditingkatkan kembali dengan membuat pakan ternak alternatif dari limbah pertanian sebagai upaya pemenuhan kuantitas pakan ternak. Metode amoniase dipilih untuk pembuatan pakan ternak alternatif karena hemat biaya dan mudah dilakukan. Kebutuhan pakan ternak kelompok ternak Makmur mencapai 600 kg/hari sehingga dalam proses pencacahan limbah pertanian sebelum pembuatan amoniase dilakukan menggunakan mesin pencacah rumput multifungsi. Mesin yang digunakan mempunyai kapasitas 500 kg/jam. Berdasarkan perhitungan didapatkan bahwa untuk memenuhi pakan ternak selama musim kemarau (6 bulan) dibutuhkan pakan sebanyak 108.000 kg, dengan menggunakan mesin pencacah rumput multifungsi dibutuhkan waktu 27 hari untuk memenuhi kebutuhan pakan ternak selama 6 bulan dengan estimasi penggunaan mesin yaitu 8 jam/hari. Kegiatan penyuluhan pengoperasian mesin dan pembuatan pakan ternak alternatif metode amoniase telah dilakukan. Dari perhitungan yang dilakukan dan kesiapan kelompok ternak dalam menerima materi penyuluhan yang diberikan, sangat besar kemungkinan masalah terkait kuantitas pakan ternak yang sedikit di musim kemarau sudah terselesaikan.
PENDAMPINGAN MANAJEMEN USAHA DAN PEMANFAATAN LIMBAH PERTANIAN SEBAGAI PAKAN TERNAK ALTERNATIF MENGGUNAKAN MESIN PENCACAH RUMPUT DENGAN PROSES SILASE PADA KELOMPOK TERNAK MAKMUR DESA KEBONDALEM JOMBANG Gustaf Naufan Febrianto; Fatkhurrohman Fatkhurrohman; Sudarwati,Muhammad Yasin
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2023): Volume 4 Nomor 2 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

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Abstract

Tujuan dalam kegiatan ini yaitu untuk meningkatkan perekonomian masyarakat produktif, yang mana untuk mewujudkan hal tersebut dilakukan dengan menerapkan solusi pada permasalahan yang dihadapi oleh mitra yaitu berupa:Pembuatan mesin pencacah multifungsi dengan menggunakan 2 saringan. Dengan adanya mesin ini diharapkan proses pencacahan rumput baik rumput hijau maupun limbah pertanian dapat meningkatkan kualitas dan kuatitas pakan ternak. Dengan kapasitas mesin yang dapat mencacah rumput sebanyak 5 karung per jam, dalam 8 jam kerja menghasilkan 40 karung. Hal ini sangat memungkinkan dapat mensuplai kebutuhan pakan ternak dengan baik. Jika diestimasikan ternak dapat menghabiskan 15 karung per hari, maka kebutuhan pakan ternak dapat tercukupi.Penyuluhan pembuatan pakan ternak alternatif menggunakan proses silase dari limbah pertanian. Guna mencukupi kebutuhan pakan ternak pada saat musim kemarau diperlaukan pakan ternak alternatif, salah satunya menggunakan limbah peternakan yang jumlahnya melimpah di Desa Kebondalem. Proses pembuatan pakan alternatif ini diawali dengan mencacah limbah pertanian menggunakan mesin pencacah rumput multifungsi. Kemudian rumput hasil cacahan di tambahkan urea. Kemudian dibiarkan selama 24 jam. Setelah itu jemur, dan angin- anginkan selama 48 jam dan hasil amoniase dapat diberikan pada ternak.Memberikan pelatihan Manajemen Usaha khususnya di bagian Financial Sehingga peternak Di Desa Kebondalem menjadi berkembang dan mengalami kemajuan.
Analisa Ketebalan Lapisan Permukaan Baja AISI 1020 Setelah Proses Perlakuan Panas Pack Carburizing Menggunakan Serbuk Arang Tempurung Kelapa dan Na2CO3 Fatkhurrohman Fatkhurrohman; Moh. Nor Ali Aziz; Indah Nurpriyanti
Creative Research in Engineering (CERIE) Vol 5, No 1 (2025): Creative Research in Engineering (CERIE)
Publisher : Lembaga Publikasi Ilmiah dan Penerbitan (LPIP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/cerie.v5i1.22929

Abstract

AISI 1020 steel is a low-carbon steel that is currently widely used on the market as a raw material for making industrial and automotive components such as gears. Therefore, it is necessary to increase the hardness of AISI 1020 steel through a heat treatment process, one of which is using the pack carburizing method. This research aims to analyze the microstructure and case of depth of AISI 1020 steel after the pack carburizing process. The pack carburizing method was used in this research because this method can optimally increase the surface hardness of steel. AISI 1020 steel was used as the main material in this research, coconut shell charcoal was added as a carbon source, and Na2CO3 as an energizer. The quenching process uses SAE 20w-40 oil. In this research, the pack carburizing process uses variations in temperature and holding time of 850oC, 875oC, 900oC and 40 minutes, 50 minutes respectively. The results of highest case of depth obtained at a temperature of 900oC with a holding time of 50 minutes of 0.46µm. It can be concluded that the pack carburizing heat treatment process has an influence on the microstructural components of pearlite and ferrite. The case of depth resulting from heat treatment also increases along with increasing temperature and holding time for the pack carburizing process.Baja AISI 1020 merupakan baja karbon rendah yang saat ini banyak digunakan di pasaran sebagai bahan baku dalam pembuatan komponen perindustrian dan otomotif seperti roda gigi. Oleh sebab itu perlu dilakukannya peningkatan kekerasan pada baja AISI 1020 melalui proses perlakuan panas, salah satunya menggunakan metode pack carburizing. Penelitian ini bertujuan untuk menganalisa ketebalan lapisan permukaan dari baja AISI 1020 setelah dilakukan proses pack carburizing. Metode pack carburizing digunakan dalam penelitian ini karena metode tersebut dapat meningkatkan kekerasan permukaan pada baja secara optimal. Baja AISI 1020 digunakan sebagai bahan utama dalam penelitian ini, ditambahkan arang tempurung kelapa sebagai sumber karbon dan Na2CO3 sebagai energizier. Proses quenching menggunakan media oli SAE 20w-40. Dalam penelitian ini, proses pack carburizing menggunakan variasi temperatur dan waktu tahan masing-masing 850oC, 875oC, 900oC dan 40 menit, 50 menit. Hasil analisa ketebalan lapisan paling tinggi didapatkan pada temperatur 900oC waktu tahan 50 menit sebesar 0,46µm. Dapat disimpulkan bahwa proses perlakuan panas pack carburizing memberikan pengaruh terhadap komponen struktur mikro pearlite dan ferrite. Ketebalan permukaan hasil perlakuan panas juga mengalami kenaikan seiring dengan meningkatnya temperatur dan waktu tahan proses pack carburizing.
Pengembangan E-Modul Inventor 2023 Berbasis Android Sebagai Mobile Learning Mata Pelajaran Teknik Pemesinan Di SMK Hasanuddin Hasanuddin; Achmad Noor Fatirul; Djoko Adi Walujo; Fatkhurrohman Fatkhurrohman
Jurnal JEETech Vol. 4 No. 2 (2023): Nomor 2 November
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/jeetech.v4i2.4203

Abstract

This development research aims to find out the results of the development of the android-based Inventor 2023 e-module as mobile learning for the Mechanical Engineering Subject at the Vocational High School level. The development of the production model used is the development of the Dick and Carey model. The results of the validity test data were obtained for R.Count all of the 15 items of questionnaire statement items on all variables in this study yielded values for R.Count > R.Table where the R.Table value was 0.361, so the indicators in these variables can be called valid. For reliability testing, it has a Cronbach's Alpha coefficient that is greater than 0.70 which is equal to 0.818 so that the variables from the questionnaire are reliable. The results of the trial data obtained for content experts were 90.33%, media experts were 84.44%, design experts were 91.61%, peer trials were 90.21%, small group trials were 91.73%, medium group trials of 92.13%, and large/field group trials of 90.04%. With these data, the Inventor 2023 e-module that has been developed falls into very good criteria and is very suitable for use in learning.
Karakteristik Pembakaran Droplet Campuran Bensin Oktan Rendah dengan Penambahan Minyak Kulit Jeruk Musyaroh; Anisah Nurul Izzah; Rizqa Ruviana; Fatkhurrohman; Tria Puspa Sari; Widya Wijayanti
TURBO [Tulisan Riset Berbasis Online] Vol 15 No 1 (2026): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v15i1.4741

Abstract

The use of waste as an alternative fuel is being continually developed to support the clean energy transition. Orange peel oil (OPO) contains limonene, a volatile hydrocarbon compound with double bonds that has the potential to be used as a gasoline additive. However, studies directly examining its effect on droplet combustion characteristics are still limited. This study aims to fill this gap by evaluating the droplet combustion dynamics of a mixture of low-octane gasoline and OPO through visual and thermal approaches. Experiments were conducted by burning 10 µL droplets using a metal stand, with the essential oil concentration varying from 1% to 100%. Visualization was performed using a high-speed camera, and temperature measurements were carried out with a K-type thermocouple. The results showed that the addition of OPO prolonged the combustion time, decreased the combustion rate constant, and increased the maximum temperature. Microexplosions were observed starting at concentrations ≥25%, due to differences in boiling points between the components. Flame visualization confirmed the quantitative results, with brighter and longer-lasting flames at higher concentrations. This study concludes that OPO can significantly modify the droplet combustion characteristics and shows potential as a waste-based biofuel additive, which can improve the efficiency and sustainability of gasoline combustion systems
Investigation on hardness and microstructural behavior of mahogany–brass reinforced bio-composite brake pads under varying compaction pressure Fatkhurrohman Fatkhurrohman; Rizqa Ruviana; Musyaroh Musyaroh; Anisah Nurul Izzah
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8593

Abstract

The gradual elimination of asbestos in brake pad manufacturing has intensified the search for sustainable and non-toxic friction materials. This study presents waste-based bio-composite brake pads reinforced with mahogany sawdust and brass shavings, fabricated using a compaction-sintering approach. The scientific novelty of this study lies in the combined influence of reinforcement composition and compaction pressure on the microstructure-hardness relationship of wood-metal hybrid composites for brake pad applications. The effects of varying mahogany-to-brass ratio and compaction pressure on Shore D hardness and morphological characteristics were systematically evaluated. The results showed that increasing compaction pressure and reinforcement proportion improved composite densification and interfacial bonding, thereby increasing hardness. Increased hardness indicates better structural integrity and load-bearing capacity, which are important mechanical requirements for brake pad materials. The highest hardness value of 76.6 Shore D was obtained at a pressure of 3400 psi with a 4:4 composition, while the lowest value of 70.6 Shore D occurred at 3000 psi with a 1:4 ratio. These findings highlight the role of controlled compaction and balanced hybrid reinforcement in tailoring the mechanical characteristics of sustainable brake pad composites, supporting the potential utilization of wood and metal waste as environmentally friendly friction material components.
PEMANFAATAN SAMPAH ORGANIK RUMAH TANGGA SEBAGAI PUPUK ORGANIK BERNUTRISI MENGGUNAKAN ALAT COPPER MANUAL DENGAN METODE VERMICOMPOST Fatkhurrohman Fatkhurrohman; Zunairoh Zunairoh; Rizqa Ruviana; Musyaroh Musyaroh; Anisah Nurul Izzah
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 3 (2025): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i3.31510

Abstract

Abstrak: Kota Surabaya memiliki jumlah penduduk 2,9 juta jiwa dan terus mengalami peningkatan setiap tahunnya. Sejalan dengan hal tersebut, volume sampah yang dihasilkan mencapai 2.913 ton perhari. Oleh karena itu, diperlukan adanya pemanfaatan dari sampah guna mengurangi volume sampah yang setiap tahunnya mengalami peningkatan. Salah satu upaya yang bisa dilakukan yaitu dengan memanfaatkan sampah menjadi pupuk organik bernutrisi. Tujuan penyuluhan yaitu memberikan wawasan bagaimana memanfaatkan sampah organik rumah tangga menjadi pupuk organik bernutrisi dengan metode vermicompost. Metode pelaksanaan dilakukan dengan penyuluhan secara langsung didepan warga Kelurahan Medokan Semampir Kota Surabaya yang dihadiri sebanyak 30 orang. Evaluasi dilakukan menggunakan pre test dan post test berkaitan dengan pengetahuan dan pemahaman terhadap proses pembuatan pupuk organik menggunakan copper manual dengan metode vermicompost. Hasil pre test dan post test menunjukkan peningkatan pengetahuan dan pemahaman warga sebesar 71% menjadi 97%. Diharapkan dengan adanya kegiatan ini warga dapat memanfaatkan sampah organik rumah tangga sehingga dapat mengurangi volume sampah di Kota Surabaya.Abstract: The city of Surabaya has a population of 2.9 million people and continues to increase every year. In line with this, the volume of waste produced reaches 2,913 tons daily. Therefore, it is necessary to utilize waste to reduce the volume of waste which increases every year. One effort that can be made is to utilize waste into nutritious organic fertilizer. The purpose of the counseling is to provide insight into how to utilize household organic waste into nutritious organic fertilizer using the vermicompost method. The implementation method is direct counseling in front of residents of Medokan Semampir Village, Surabaya City, which was attended by 30 people. The evaluation was carried out using a pre-test and post-test related to insight and understanding of the process of making organic fertilizer using manual copper with the vermicompost method. The results of the pre-test and post-test showed an increase in residents' insight and understanding 75% to 97%. It is hoped that with this activity, residents can utilize household organic waste so that they can reduce the volume of waste in the city of Surabaya.
Co-Authors Achmad Noor Fatirul Anisah Nurul Izzah Djoko Adi Walujo Febrianto, Gustaf Naufan Ferriawan Yudhanto Hasanuddin Hasanuddin Indah Nurpriyanti Ismail Ismail Luluk Edahwati M Danny Pratama Lamura Machmudi Machmudi Moh. Nor Ali Aziz Mohamad Rifan Fathurahman Mohammad Mufti Muji M. Musyaroh, Musyaroh Rizqa Ruviana Rizqa Ruviana Rizqa Ruviana Sudarwati,Muhammad Yasin Sutra Angga Wijendra Tria Puspa Sari widya wijayanti Zunairoh Zunairoh