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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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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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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.
TANTANGAN PENGELOLAAN LIKUIDITAS PADA KOPERASI SYARIAH STUDI KASUS: KSPPS NURI BATUMARMAR Fudaili, Moh; Haridah, Haridah; Fawaid, Moh
Prosiding Pengabdian Ekonomi dan Keuangan Syariah Vol. 5 No. 1 (2026): Prospeks
Publisher : LP2M IAI AL-KHAIRAT PAMEKASAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32806/pps.v5i1.1799

Abstract

Likuiditas merupakan salah satu aspek penting dalam menjaga stabilitas dan keberlanjutan operasional koperasi syariah. Koperasi syariah berperan sebagai lembaga intermediasi keuangan yang menghimpun dan menyalurkan dana anggota, sehingga dituntut mampu memenuhi kewajiban jangka pendek secara tepat waktu tanpa melanggar prinsip-prinsip syariah. Penelitian ini bertujuan untuk menganalisis tantangan pengelolaan likuiditas pada Koperasi Simpan Pinjam dan Pembiayaan Syariah (KSPPS) Nuri Batumarmar. Metode penelitian yang digunakan adalah pendekatan kualitatif dengan jenis penelitian studi kasus. Data diperoleh melalui wawancara, observasi, dan dokumentasi, kemudian dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa tantangan utama dalam pengelolaan likuiditas KSPPS Nuri Batumarmar meliputi fluktuasi arus kas dari simpanan dan pembiayaan anggota, keterbatasan instrumen penempatan dana yang sesuai dengan prinsip syariah, serta risiko pembiayaan bermasalah yang dapat menghambat perputaran dana. Selain itu, faktor eksternal seperti kondisi ekonomi dan perilaku anggota turut memengaruhi stabilitas likuiditas koperasi. Oleh karena itu, diperlukan strategi pengelolaan likuiditas yang terencana, hati-hati, dan berkelanjutan agar koperasi mampu menjaga kepercayaan anggota serta menjalankan fungsi intermediasi secara optimal sesuai prinsip syariah.
PRELIMINARY STUDY ON THE USE OF IPOMOEA CARNEA POWDER AS A REINFORCEMENT MATERIAL IN THE PRODUCTION OF POLYMER ROOF TILES Nicko Dharma Kustyo; Sunardi Sunardi; Moh. Fawaid; Sidik Susilo; Ipick Setiawan; Yusvardi Yusuf; Agung Sudrajad; Erny Listijorini; Kurnia Nugraha; Slamet Wiyono; Haryadi Haryadi
Trends in Mechanical Engineering Research Vol 3, No 01 (2025): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v3i01.34510

Abstract

Roof tiles play a vital role in the construction industry hagoslot by providing protection from the sun's heat and rain. The quality of roof tiles largely depends on the materials used and the manufacturing process, as these factors significantly affect the tiles' mechanical properties. Kangkung pagar (Ipomoea carnea) is one type of alternative natural fiber material that can be utilized in the creation of composite materials. This study aims to explore the potential of Ipomoea carnea powder as an alternative material for producing polymer roof tiles, as well as to examine how variations in the composition of powder and sand influence the mechanical properties of these tiles. The method for producing roof tiles is based on powder metallurgy. The composition of the powder and sand used varies in the following ratios: 10% powder to 50% sand, 20% powder to 40% sand, and 30% powder to 30% sand. Additionally, a fixed composition of 30% polyester resin and 10% asphalt is used. The initial process involves mixing the materials according to these predetermined ratios. The resulting mixture is then molded and compacted under a pressure of 200 kg/cm². Characterization of the mechanical properties includes proximate analysis, calculation of porosity and density, flexural strength testing, and hardness testing.The study's results indicated that the properties of polymer roof tiles are significantly influenced by the composition of the powder and sand used during their manufacture. The findings revealed a porosity value of 0.209%, a density of 0.994%, a flexural strength of 2.270 MPa, and an optimum hardness of 19.1 BHN. The addition of 10% powder increased the hardness value by only 0.4% while decreasing the flexural strength by 0.5%. Overall, the use of Ipomoea Carnea powder was not effective in enhancing the mechanical properties of the polymer roof tiles, as both the flexural strength and hardness values remained below those of commercially available polymer roof tiles.
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 Erny Listijorini Fargianti, Yusti Fudaili, Moh Hamdan Akbar Notonegoro Hamid Abdillah Haridah, Haridah Haris Abizar Haris Abizar Haris Abizar, Haris Haryadi Haryadi Hermawan Susanto Hermawati, Devina Huraidi, Haris Ikhsanudin Ikhsanudin Iman, Atep Ipick Setiawan Ismi Maulani Ita Novita Sari Kurnia Nugraha Linda Farida M. Chumaidi Maulani, Ismi Ma’mun Hidayat Muhammad Nurtanto Mukhlisin, Akh Muqarramah Sulaiman Kurdi Mutohhari, Farid Nicko Dharma Kustyo 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 Setiyani, Solis - Shafnur Hamdi Shofiatul Ula Sidik Susilo Slamet Wiyono Soffan Nurhaji Soffan Nurhaji Soffan Nurhaji Soffan Nurhaji, Soffan Sri Nugroho Sulaeman Deni Ramdani Sulaeman Deni Ramdani Suryana Suryana Tamil Selvan Subramaniam Tarmidzi Anas, Achmad Tri Alif Shandy Widodo Putra Halomoan Siregar Yeni Muriani Zulaida Yusti Fargianti Yusvardi Yusuf