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All Journal Jurnal Teknologi JMPM (Jurnal Material dan Proses Manufaktur) Journal of Science and Engineering Jurnal Teknik Elektro dan Komputer TRIAC DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) JEECAE (Journal of Electrical, Electronics, Control, and Automotive Engineering) Jurnal Pengbdian Teknik Mesin JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI Majalah Teknik Mesin
Salim, Alfi Tranggono Agus
Politeknik Negeri Madiun
Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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Pengaruh Welding Time pada Resistance Spot Welding terhadap Sifat Mekanik DIN 1.4003 Salim, Alfi Tranggono Agus; Yusdetira, Elza Febri; Rahmawati, Ananda Nur; Wahidah, Vivi Aulia Husna; Akram, Permata Luthfiya; Saputra, Mahendra Wisnu
Jurnal Permadi : Perancangan, Manufaktur, Material dan Energi Vol 7 No 01 (2025): JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/permadi.v7i01.151

Abstract

The process of making train sidewalls made of stainless steel using resistance spot welding (RSW) at PT INKA (Persero) experienced problems related to the quality of welding joints that were not optimal due to the mismatch between welding time, welding current, and the thickness of the material used. Therefore, it is necessary to set the right welding parameters so that the quality of the connection can be optimized and avoid failure. One of the most important parameters taken into account in the resistance spot welding (RSW) process is the welding time. This study aims to analyze the effect of welding time variations on mechanical properties, such as shear strength and hardness, of DIN 1.4003 material applied to stainless steel train sidewalls. The research was conducted using the Resistance Spot Welding method with welding time variations of 11, 15, 19, and 21 cycles. The results obtained show that the shortest welding time has the lowest shear strength and highest hardness value, and the longest welding time has the highest shear strength and lowest hardness value. The conclusion of this research is that welding time affects the mechanical properties (shear strength and hardness) of DIN 1.4003 material.
Terapan Iptek Repair Produk Hasil Pengelasan dengan SMAW Guna Meningkatkan Kesejahteraan Masyarakat Indarto Yuwono; Salim, Alfi Tranggono Agus; Rahayu Mekar Bisono; Mukti Prasaja; Wahyu Eko Prasetyo; Reza Gusti Eka Prasetya; Fahrul Ikhza Fadilla; Aureyza Pandu Qinara
DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 9 No 1 (2025)
Publisher : Politeknik Negeri Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32486/dikemas.v9i1.848

Abstract

Pondok Pesantren Miftahul Huda, Kecamatan Dolopo, Kabupaten Madiun memiliki sekitar 200 santri berusia muda, yang merupakan potensi untuk pengembangan keterampilan di bidang teknologi terapan, khususnya dalam perbaikan produk dengan teknik pengelasan SMAW. Di pondok pesantren ini, banyak barang yang terbuat dari besi dan baja, seperti jemuran, sepeda, pagar, sekat pemisah, dan meja mengaji, yang sering kali memerlukan perbaikan dengan pengelasan SMAW. Sehingga, diperlukan pemahaman mengenai prosedur pengelasan yang tepat, instalasi peralatan yang benar, dan penerapan standar K3 agar efektivitas pengelasan dapat dicapai secara optimal. Teknologi pengelasan ini diperkenalkan melalui kegiatan Pengabdian kepada Masyarakat (PkM), yang mencakup teori dan praktik, dan diadaptasi dari materi yang diajarkan di Politeknik Negeri Madiun. Tujuan dari kegiatan pengabdian ini adalah untuk menghasilkan peserta yang mampu memperbaiki dan membuat produk berbahan besi atau baja dengan teknik pengelasan SMAW.
Budidaya Lebah Kelanceng Untuk Meningkatkan Keterampilan Santri Di Lingkungan Pondok Pesantren Miftahul Huda Doho Salim, Alfi Tranggono Agus; Wahyu Pribadi; Wida Yuliar Rezika; Nanang Romandoni; Rakhmad Gusta Putra; Satrio Sri Gunawan; Rohmadoni Fitriantika; Nur Laila Ramadhani; Andi Alfian Putra Fajar; Diashinta Putri Aprilla; Siti Khumaidah
DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 9 No 1 (2025)
Publisher : Politeknik Negeri Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32486/dikemas.v9i1.850

Abstract

Pondok Pesantren Miftahul Huda Doho, Madiun, memiliki potensi besar untuk pengembangan usaha berbasis sumber daya lokal, terutama melalui budidaya lebah kelanceng. Namun, potensi ini belum dikelola secara optimal. Program pelatihan ini bertujuan untuk meningkatkan keterampilan dan jiwa kewirausahaan santri dengan menggunakan metode kuantitatif melalui evaluasi awal dan evaluasi akhir untuk mengukur efektivitas pelatihan. Hasil menunjukkan tingkat keberhasilan mencapai 85%, didukung oleh antusiasme tinggi peserta dalam mengikuti teori dan praktik budidaya lebah kelanceng. Program ini memberikan dasar keterampilan untuk mendukung kemandirian dan pengelolaan usaha berbasis agribisnis secara berkelanjutan.
Peningkatan Kapasitas Produksi Bank Sampah Berbasis Ekonomi Sirkular: Studi pada Bank Sampah Matahari Kota Madiun Nurmalasari, Niza; Salim, Alfi Tranggono Agus; Hartono, Halleina Rejeki Putri; Akram, Permata Luthfiya; Husna, Vivi Aulia; Putri, Ajeng Isnain; Devina, Monik; Shinta, Rahmawati Nur; Devani, Muzdalifah; Ningrum, Rahayu Widodo Mustika; Putri, Bunga Cantika; Fatimah, Melani Siti; Arini, Nurtisa Nadya
DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 9 No 2 (2025)
Publisher : Politeknik Negeri Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32486/dikemas.v9i2.1001

Abstract

Permasalahan limbah plastik menjadi isu global yang berdampak pada lingkungan, kesehatan, dan sosial-ekonomi. Kota Madiun turut menghadapi tantangan serupa dengan produksi sampah harian mencapai 122,6 ton, sebagian besar berupa plastik, sementara TPA Winongo telah mengalami kelebihan kapasitas. Sebagai salah satu solusi berbasis komunitas, Bank Sampah Matahari berperan strategis dalam pengelolaan sampah plastik, namun masih menghadapi keterbatasan pada aspek produksi karena pengolahan dilakukan secara manual dan hasil produk kurang bervariasi. Melalui program Pengabdian kepada Masyarakat Tahun Pendanaan 2025 yang didanai oleh Direktorat Penelitian dan Pengabdian kepada Masyarakat, Direktorat Jenderal Riset dan Pengembangan, Kementerian Pendidikan Tinggi, Sains, dan Teknologi, dilakukan intervensi berupa penerapan teknologi tepat guna, pelatihan teknis, serta pendampingan. Hasil kegiatan menunjukkan peningkatan signifikan pada pengetahuan peserta, dengan rata-rata kenaikan skor 45–46 persen pada materi alat, resin, dan proses produksi. Dari aspek praktik, pengurus Bank Sampah Matahari mampu mengoperasikan mesin pencacah plastik secara mandiri serta menghasilkan produk baru berupa asbak, tatakan gelas, paving block, dan furniture sederhana dari bahan plastik daur ulang. Penerapan teknologi ini terbukti meningkatkan kapasitas produksi, efisiensi waktu, serta diversifikasi produk dengan nilai ekonomi lebih tinggi. Dengan demikian, kegiatan ini dapat menjadi model pengelolaan limbah plastik berbasis masyarakat yang berkelanjutan dan berdaya saing, sekaligus mendukung pencapaian tujuan pembangunan berkelanjutan di tingkat lokal maupun nasional.
Perangkat Pengukur Kondisi Kemiringan Rel Kereta Api Menggunakan Sensor Giroskop Berbasis GPS Nugroho, Syahrizal Rohmatul; Salim, Alfi Tranggono Agus; Echsony, Mohammad Erik; Patrialova, Sefi Novendra; Setyawan, Romal Hadi
Journal of Science and Engineering Vol 7, No 1 (2024): Journal Of Science And ENgineering (JOSAE)
Publisher : Fakultas Teknik Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/josae.v7i1.8009

Abstract

Rail quality decreases directly in proportion to the operating time of the train since the rail is loaded from the train wheels. Railroad tracks are inspected by PPJ (Track Inspector) by using a track gauge master to measure slope. Manually operated devices cause PPJ to run along the railroad between stations, causing accidents and requiring relatively long operating times. Using a device that measures the slope of railroad tracks is a more effective solution to these problems. The device uses a gyroscope sensor and GPS module to locate non-standard rails. A complementary filter is applied to the converted pitch and roll values. A slope measuring instrument was used to test the accuracy of pitch and roll angles. Gyroscope sensors are calibrated to prevent measurement errors (errors). Based on the results, the gyroscope sensor had an accuracy error of 0.20° in pitch and 0.27° in a roll. A complementary filter reduces error accuracy to 0.06° for pitch and 0.08° for roll. Its accuracy compared to smartphone GPS is 5.38 meters, while its accuracy compared to the actual location is 7.74 meters.
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): December
Publisher : Universitas Muhammadiyah Yogyakarta

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

Abstract

The decrease in battery performance, cycle life, and battery safety is caused by the work factor of LiFePo4 (Lithium iron phosphate) battery exceeds the operational temperature of 40OC. The research problem is heat distribution with cooling system variation and fluid effect for LiFePo4 battery. The research objective is to analyze the heat distribution of the battery and the temperature of the LiFePo4 battery below the operational temperature. The research method is quantitative experiment, with Computational Fluid Dynamics (CFD)simulation for LiFePo4 battery cooling system. LiFePo4battery without cooling plate was simulated for maximum battery temperature result. The operational temperature of the battery is lower by 40OCwith additional cooling plates assembled on the battery with variations of water and air fluids that flows in the cooling plates. The results and conclusions of the research are data on the maximum battery temperature increase of 1,2OCand the distribution of heat evenly on the surface of the battery with a variation of the cooling plate flowing with water fluid.
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): December
Publisher : Universitas Muhammadiyah Yogyakarta

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

Abstract

A factor that affects the operation and comfort of passengers on trains is noise. The research problem is noise caused by air conditioning (AC) and acoustic characteristics in the passenger cabin of stainless steel trains against operational feasibility requirements. The purpose of the study was to analyze the noise and acoustic characteristics and noise distribution in the passenger cabin of the stainless steel train. The research method used is experimental quantitative which refers to ISO 3381: 2011 for noise measurement and ISO 3382: 2009 for acoustic characteristics. The result of the study is that the noise level in the passenger cabin of the stainless steel train increases linearly with the increase in measurement height and the reverberation time value shows different variations at each frequency. The conclusion of the research is that the stainless steel train passenger cabin meets the acceptance criteria of the Minister of Transportation Regulation Number: KM. 41 Year 2010 with noise results below 85 dBA and meets the criteria of a room that functions for conversation activities with a range of reverberation time values between 0.197 -0.357 second.
Co-Authors Akram, Permata Luthfiya Amrullah, Muhammad Narrokhim Andi Alfian Putra Fajar Apriyanto, R. Akbar Nur Ardhyanti, Novi Arini, Nurtisa Nadya Arrosida, Hanum Artianingrum, Imerlipta Sekar Aureyza Pandu Qinara Bachtera Indarto, Bachtera Budi Artono Devani, Muzdalifah Devina, Monik Dharmawan, Alit Diashinta Putri Aprilla Dyah, Ainun Purwining Fahrul Ikhza Fadilla Fakhrudi, Yoga Ahdiat Fatimah, Melani Siti Fauzi, Riza Achmad Hakiki, Zahrani Aniela Hartono, Halleina Rejeki Putri Hibbanurrohim, Muhammad Ibram Husna, Vivi Aulia Imaduddin, Ilmi Rizki Indarto Yuwono indarto, Bahtera Iskawanto, Hilman Saraviyan Lawu, Kanjeng Sunan ma?ruf, Ubaeydilah Mudinillah, Adam Muhammad Arif Murtadlo, M. Zaki Imamul Nafi’, Mochammad Ilman NANANG ROMANDONI Ningrum, Rahayu Widodo Mustika Niza Nurmalasari Nugroho, Syahrizal Rohmatul Nur Laila Ramadhani Nurdiansyah, Rahardian Titus Patrialova, Sefi Novendra Prasaja, Mukti - Putri, Ajeng Isnain Putri, Bunga Cantika Qathrunnada, Mitha Anandya Rahayu Mekar Bisono Rahayu Mekar Bisono, Rahayu Mekar Rahmawati, Ananda Nur Rakhmad Gusta Putra Reza Gusti Eka Prasetya Rohmadoni Fitriantika Saputra, Mahendra Wisnu Satria Wardana, Dhimas Wahyu Satrio Sri Gunawan Setyawan, Romal Hadi Shinta, Rahmawati Nur Siti Khumaidah Wahidah, Vivi Aulia Husna Wahyu Eko Prasetyo Wahyu Pribadi Wida Yuliar Rezika Wida Yuliar Rezika, Wida Yuliar Yusdetira, Elza Febri Yuwono, Indarto Zuriah, Dara Lathiful