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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Teknik Mesin Jurnal Pendidikan Vokasi JPTK: Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Sains dan Teknologi Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Jurnal Penelitian LPPM (Lembaga Penelitian dan Pengabdian kepada Masyarakat) IKIP PGRI MADIUN VANOS Journal of Mechanical Engineering Education Jurnal Teknika Jurnal Taman Vokasi Turbo : Jurnal Program Studi Teknik Mesin JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN Jurnal Pengabdian Pada Masyarakat Machine : Jurnal Teknik Mesin Pendas : Jurnah Ilmiah Pendidikan Dasar STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Jurnal Abdi Insani Trends in Mechanical Engineering Research Prosiding Pengabdian Ekonomi dan Keuangan Syariah Jurnal Pendidikan Teknik Mesin
Moh Fawaid
Universitas Sultan Ageng Tirtayasa
Aerospace Engineering Agriculture, Biological Sciences & Forestry 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 Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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PENGARUH VARIASI SUDUT PENGELASAN GMAW TERHADAP KEKERASAN DAN STRUKTUR MIKRO PADA BAJA ASTM A36 Ma’mun Hidayat; Linda Farida; Moh. Fawaid
Jurnal Pendidikan Teknik Mesin Vol. 9 No. 1 (2022): Jurnal Pendidikan Teknik Mesin
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v9i1.15940

Abstract

Penelitian ini dilakukan untuk mengetahui dan melihat pengaruh variasi sudut saat proses pengelasan GMAW (Gas Metal Arch Welding) terhadap nilai kekerasan dan struktur mikro hasil pengelasan. Spesimen yang digunakan yaitu Baja ASTM A36 tebal 10mm. Proses pengelasan gmaw dilakukan dengan variasi sudut las yaitu 70o dan 110o serta menggunakan arus 95A, 125A, 155A dan 185A. Metode penelitian yang digunakan yaitu metode eksperimen dimana dalam pengambilan data dilakukan dengan observasi langsung dan teknik analasis data yang digunakan dalam penelitian ini adalah statistik deskriptif. Hasil penelitian ini menunjukkan bahwa variasi sudut saat proses pengelasan memiliki nilai kekerasan paling tinggi yaitu pada sudut 70 o arus 185A dengan nilai kekerasan yaitu weldmetal 217,1 HV, sedangkan nilai kekerasan terendah ada pada sudut 110 o arus 95A dengan nilai kekerasan weld metal 180,9 HV ini menunjukkan bahwa semakin tinggi nilai kekerasan maka fasa pearlite (gelap) lebih banyak dan permukaan kasar.
GTAW WELDING REPAIR QUALITY ANALYSIS ON SPARGER HEADER WITH LIQUID PENETRANT AND LEAK TEST Hermawati, Devina; Fawaid, Moh
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

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Abstract

Damage to sparger headers, such as material thinning and leakage, can reduce system reliability and disrupt industrial operations. Repair welding using Gas Tungsten Arc Welding (GTAW) is commonly applied; however, its quality must be verified to ensure safe reuse. This study evaluates the quality of GTAW-based repair welding on a corrosion-damaged sparger header using Non-Destructive Testing (NDT), namely Liquid Penetrant Testing (LPT) for surface defect detection and leak testing for sealing performance under pressurized conditions. Unlike previous studies that focus on newly fabricated welds under laboratory conditions, this study evaluates repair welding performance on an actual industrial component affected by corrosion-induced wall thinning. The combination of surface inspection using LPT and functional validation through leak testing under real operating conditions provides a more comprehensive assessment of repair quality. Results show no surface indications in LPT and no leakage during testing at 1.2 kg/cm² for 37 minutes. These findings indicate that the repaired weld meets acceptance criteria and is suitable for reuse. The results provide a reliable basis for assessing repair welding quality in industrial components.
Co-Authors . Jamari . SUNARDI Ade Dwi Putra Janata Agung Dwi Agung Hanfi Astana Agung Sudrajad Agus Pramono Ananda Yhuto Wibisono Putra Ardiansyah, Atih Azas Ramang Pambudi Desga H. N. Desga H. N. Desga Hita Nandiawan, Desga Hita Dian Nur Anwar Fargianti, Yusti Fudaili, Moh Hamdan Akbar Notonegoro Hamid Abdillah Haris Abizar Haris Abizar Haris Abizar, Haris Haryadi, Haryadi Hermawan Susanto Hermawati, Devina Huraidi, Haris Ikhsanudin Ikhsanudin Iman, Atep Ismi Maulani Ita Novita Sari Kurnia Nugraha Kustyo, Nicko Dharma Linda Farida Listijorini, Erny M. Chumaidi Maulani, Ismi Ma’mun Hidayat Muhammad Nurtanto Mukhlisin, Akh Muqarramah Sulaiman Kurdi Mutohhari, Farid Nur Kholifah Pratiwi, Herlina R. Ahmad Zaky El Islami Ricky Cahyasari Putra Rifky Ismail Rina Lusiana Rina Lusiani Rusdi Febriyanto Sabirin, Sahril Saefuloh, Iman Sanam, Sanam Setiawan, Ipick Setiyani, Solis - Shafnur Hamdi Shofiatul Ula Soffan Nurhaji Soffan Nurhaji Soffan Nurhaji Soffan Nurhaji, Soffan Sri Nugroho Sudrajad, Agung Sulaeman Deni Ramdani Sulaeman Deni Ramdani Sunardi, Sunardi Suryana Suryana Susilo, Sidik Tamil Selvan Subramaniam Tarmidzi Anas, Achmad Tri Alif Shandy Widodo Putra Halomoan Siregar Wiyono, Slamet Yeni Muriani Zulaida Yusti Fargianti Yusuf, Yusvardi