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All Journal Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Journal of Energy, Materials, & Manufacturing Technology Jnanadharma
Fajar Y. Prabowo
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Penerapan Teknologi Ramah Lingkungan untuk Pengolahan Rumput Laut UMKM ORA FOOD Ani Purwanti; Satriawan D. Hariyanto; Muchlis; Suparni S. Rahayu; Fajar Y. Prabowo
Retii 2022: Prosiding Seminar Nasional ReTII ke-17
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Seaweed as one of the leading commodities of the Gunungkidul Regency Government, is currently partly processed into crispy seaweed processed food by MSMEs ORA FOOD. To produce industrial-scale seaweed quality, proper handling is needed from the harvesting process to post-harvest processing. One of the processes that needs to be improved is the washing method, harvesting drying, the process of slicing processed seaweed, the process of processing waste into biogas fuel, as well as the marketing process. Washing technology using sustainable washing equipment is the right choice for MSMEs ora food. The seaweed washer uses a drive motor instead of a manual washing tool. This joint activity with partners is the framework of the PKM Grant program from the Ministry of Education and Culture for the 2022 funding year. In this activity, partners were given assistance in solutions to their problems in the form of seaweed washing machines with simple technology, seaweed slicer racks, seaweed drying machines, and biomirue digesters as a means of processing seaweed waste, as well as promotional media through the Shopee e-commerse account. In this activity, 10 MBKM students were included who were recognized for 10 credits in one year of implementing the Community Partnership Program. Keywords: seaweed, blue economy, renewable energy, appropriate technology
Implementasi Mesin Perontok Padi bagi Petani di Desa Nogotirto Kapanewon Gamping Joko Waluyo; Venditias Yudha; Fajar Y. Prabowo
JNANADHARMA Vol. 1 No. 1 (2023): Januari 2023
Publisher : Fakultas Sains Terapan

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Inovasi teknologi perlu disebarluaskan kepada masyarakat sebagai wujud implementasi hasil luaran pendidikan di perguruan tinggi. Para petani padi di desa Nogotirto Kapanewon Gamping merupakan sasaran yang tepat karena belum menerapkan teknologi pada proses pasca panen. Proses perontokan padi masih dilakukan secara manual dengan cara dipukul pada alas kayu. Tujuan dari kegiatan ini adalah untuk mengenalkan dan mengimplementasikan teknologi mesin perontok padi yang dapat digunakan pada saat pasca panen. Metode yang digunakan yaitu penyuluhan dan diseminasi mesin perontok padi kepada mitra. Hasil dari kegiatan pengabdian ini yaitu mitra petani padi telah mengetahui mekanisme pengoperasian dan perawatan mesin perontok padi secara benar. Implementasi teknologi mesin perontok padi mampu meningkatkan produktifitas petani dan meningkatkan efisiensi biaya pasca panen.
Pengaruh Perlakuan Panas terhadap Kekerasan dan Kekasaran Permukaan Hasil Pembubutan Baja AISI 1045 Fajar Y. Prabowo; Joko Waluyo; yudha, venditias
Journal of Energy, Materials, & Manufacturing Technology Vol 4 No 02 (2025): Journal of Energy, Materials, & Manufacturing Technology
Publisher : Unit Penelitian, dan Pengabdian Masyarakat (UPPM) Politeknik ATI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61844/jemmtec.v4i02.943

Abstract

This study examines the effects of heat treatment on the hardness, tensile strength, and surface roughness of AISI 1045 steel during turning operations. The material was tested under three conditions: untreated, hardened (with water and oil quenching), and tempered. Results reveal that heat treatment transformed the microstructure from ferrite-pearlite to a combination of martensite, bainite, ferrite, and pearlite. Hardness increased from 52.83 HRC (untreated) to 80.17 HRC (water-quenching hardening) and 68.33 HRC (oil-quenching hardening). Tempering achieved the highest tensile strength at 1231.73 MPa with a hardness of 65 HRC. Surface roughness was lowest for tempered specimens at 700 RPM (3.6 µm), while water-quenching hardening at 1000 RPM resulted in the highest roughness (35.35 µm). Tempering is recommended for machine components such as shafts due to its optimal balance of mechanical properties, hardness, and surface quality.
Co-Authors Ani Purwanti Joko Waluyo MUCHLIS Satriawan D. Hariyanto Suparni S. Rahayu Yudha, Venditias