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All Journal Jurnal Rekayasa dan Manajemen Sistem Industri Rekayasa Mesin Journal of Engineering and Management in Industrial System PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Community Empowerment International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Mechanical Engineering for Society and Industry
Willy Satrio Nugroho
Universitas Brawijaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation

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Optimalisasi Proses Pengelasan di Bengkel Sumber Rejeki Malang dengan Teknologi Gas Tungsten Arc Welding: Optimization of the Welding Process at Sumber Rejeki Workshop Malang using Gas Tungsten Arc Welding Technology Sudarman, Sudarman; Sabariman, Rizky Wahyu; Buludatu, Riski; Muzaky, Muhammad Azriel; Alam, Adi Bahrul; Setiawan, Hendra Agus; Nugroho, Willy Satrio; Sofi'i, Yepy Komaril
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 5 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i5.9295

Abstract

Sumber Rejeki Welding Workshop is one of the small and medium enterprises engaged in manufacturing and welding services in Malang City. In its production process, the workshop still relies on conventional welding methods that are less efficient and produce suboptimal weld quality. Therefore, this community service program aims to enhance production efficiency and quality by implementing Gas Tungsten Arc Welding technology and assisting in applying occupational health and safety standards. The implementation method of this program includes several stages: the preparation stage, which involves identifying partner needs and machine installation; the training stage, consisting of theoretical and practical sessions for operators; the production assistance stage; and the evaluation stage, using the Non-Destructive Testing method with penetrant testing techniques to assess weld quality. The results of this program implementation indicate a 30% improvement in production efficiency, with reduced processing time and fewer welding defects. Significant economic impacts are also evident through increased production capacity and the workshop's competitiveness in the local market. Furthermore, the provided training has enhanced the operators' skills in machine operation and raised their awareness of the importance of occupational safety standards. This program demonstrates that adopting modern welding technology can significantly improve productivity and product quality, making it a potential model for application in other small and medium enterprises to boost competitiveness in the manufacturing sector.
The analysis of semiconducting charateristic of rice husk-based carbon nanomaterial bio-activated by pineapple peel juice Dwidiani, Ni Made; Suardana, Ngakan Putu Gede; Wardana, I Nyoman Gede; Nugroho, Willy Satrio; Puja, I Gusti Ketut; Septiadi, Wayan Nata; Santhiarsa, I Gusti Ngurah Nitya; Tista, Si Putu Gede Gunawan
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12733

Abstract

This study investigates the synthesis and characterization of semiconducting materials derived from rice husk bio-activated by pineapple peel juice, presenting an eco-friendly and sustainable approach. The organic photo-active semiconducting material from rice husk ash (RHA) is synthesized. RHA was activated by immersion in the pineapple juice solution. Distinct structural disparities among RHA, Sunken Carbon nanomaterial (SCNM), and Floating Carbon Nanomaterial (FCNM) materials are revealed through SEM imaging, showcasing the tailored nature of each material. The SEM images also indicate the role of bromelain from the pineapple juice to provide defects on the RHA carbon surface. The crack on the nano particles on the surface of SCNM and FCNM were formed due to the bromelain electrostatic interaction with the surface. Elemental analysis indicates a higher probability of CuO and Si presence in SCNM, suggesting its potential for semiconductor extraction. The Cu to Si ratio implies photoactivity, confirmed by UV-Vis characterization showing absorption peaks in the UV region. FTIR analysis highlights enhanced polar interactions in SCNM and FCNM, attributed to the activation process involving bromelain in pineapple juice. The photoelectric effect testing shows FCNM and SCNM generates more electrical current as exposed to light which. The current was generated due to the electron transport phenomenon of CuO and Si content triggered by photons. The study provides insights into the materials' molecular structures and potential applications in sensors, energy devices, and semiconductor-related technologies, leveraging the unique properties of bio-derived nanomaterials for practical implementation.
Co-Authors Alam, Adi Bahrul Ali Saifullah Anggara, Teuku Aril Reynaldi Buludatu, Riski Chanampa, Carlos Nicolas Quispe Dewi Hardiningtyas Dewi, Fransisca Gayuh Utami Dwidiani, Ni Made Esiliy , Rehab Ragay Fikrul Akbar Alamsyah Heni Hendaryati I Gusti Ketut Puja I Gusti Ngurah Nitya Santhiarsa I Nyoman Gede Wardana ING Wardana Ishardita Pambudi Tama Mega Nur Sasongko Muhammad Sukroni Muzaky, Muhammad Azriel NPG Suardana Purnami Purnami Purnomo Budi Santoso Rusnita Yuliana Sabariman, Rizky Wahyu Schulze, Ajani Aiman Schulze, Klauss Setiawan, Hendra Agus Si Putu Gede Gunawan Tista Sudarman Sudarman Sudarman Sudarman Sujarwo Sujarwo Wayan Nata Septiadi Yepy Komaril Sofi’i Yusuf, M Umar