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All Journal Jurnal Teknik Mesin Rekayasa Mesin Info-Teknik JURNAL PENGABDIAN KEPADA MASYARAKAT JOURNAL OF SCIENCE AND APPLIED ENGINEERING Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Energi dan Teknologi Manufaktur Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Journal of Welding Technology Otopro JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Jurnal Pengabdian Polinema Kepada Masyarakat Jurnal Pengabdian dan Pemberdayaan Nusantara (JPPNu) Bulletin of Science Education Jurnal Pengabdian Kepada Masyarakat Journal of Mechanical and Electrical Technology Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Teknik Mesin, Industri, Elektro dan Informatika Asian Journal Science and Engineering Journal of Mechanical Engineering Venus: Jurnal Publikasi Rumpun Ilmu Teknik Journal of Evrimata: Engineering and Physics
Kris Witono
Jurusan Teknik Mesin Politeknik Negeri Malang
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Journal : Journal of Welding Technology

 1 
Pengaruh temperatur pelat landasan selama hot gas welding terhadap karakteristik kekuatan lasan lembaran HDPE Agus Setiawan; Kris Witono; Riswan E.W. Susanto
Journal of Welding Technology Vol 2, No 2 (2020): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v2i2.2069

Abstract

Plastic material failures such as fractures or can be repaired by joining. In the industrial world, the joining of two or more plastic parts can be done with plastic welding technology, one of the methods of plastic welding is hot-gas welding (HGW). HGW is a welding process for plastic materials, but it is known that plastic materials have poor heat conductivity. The aim of this research is to improve the quality of plastic material joints, in this case HDPE sheets, and effect of the base plate temperature and hot-gas temperature on the strength and impact, as well as the interaction effect of the base plate temperature and hot-gas temperature on tensile and hit strength. The method used in data collection is data processing method using factorial DOE. The temperature variation of the base plate during the welding process (30° C, 70° C, 110° C and 150° C), as well as the temperature of the hot air flow from the hot-gun (250° C, 300° C, and 350° C). To obtain the data, it was carried out by tensile and hit tests using standard specimens, respectively ASTM D 638-03 and ASTM D 6110. From the research results, it was found that the ground temperature and hot air flow temperature of the hot gun during the hot gas welding process had an effect on the tensile strength and hit HDPE weld joints. Optimization of tensile strength and hitting strength, respectively 18.78 MPa and 0.018567 J/mm2 (85.65% and 89.74% of the strength of HDPE without joints), these values are obtained from the combination of an anvil plate temperature of 150° C and flow hot air hot gan 250° C.
Analysis of Hydro Test Pressure Variations on A106 Grade B Carbon Steel Pipe Welded Joints with Welding Repair Method Riswan E.W. Susanto; Kris Witono; Agus Setiawan; Risno Bayu
Journal of Welding Technology Vol 4, No 2 (2022): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v4i2.3556

Abstract

Transportation of oil and gas through oil refinery pipelines is faced with problems, including corrosion problems. Corrosion is a natural phenomenon that occurs in metal materials, where corrosion is a process of material damage due to chemical or electrochemical reactions with its environment. The purpose of this study is the results of the analysis of HydroTest pressure variations on the Welding Joints of Carbon Steel Pipes (carbon steel) A106 Gr.B. In the study did not discuss the occurrence of corrosion and other tests, while the welding process in detail was shown in WPS. This experimental research method uses the Welding Repair Method on welded joints according to the ASME IX, ASME B31.3 standard. The research material is A106 GR carbon steel pipe. B is in the form of a U Tube Seal Deck that has undergone corrosion and damage, where later the fabrication process (pipe repair) especially welding (using SMAW and GTAW) has been determined in PQR and WPS (WPS / CS / EM / ASME / WPxxx). The focus of this research is on stage 9 (hydro testing stage) of the Welding Repair method. Free variables in pressures of 240 Psi, 435 Psi, 690 Psi, and 910 Psi, which have been planned based on the thickness and length of the Pipe joint. Variable fixed temperature test Hydrotest 28OC, holding time holding time (pressurizing) 10 minutes and holding time peak 60 minutes before (depressurizing). The results were obtained that the pressure change was divided into two stages, pressurizing with the highest pressure of 915 Psi is the 4th pressure variation this was obtained from the test observation that there were no leaks in the welded joints and pipe materials in accordance with the acceptance criteria. While the second stage is (depressurizing) with a decrease in pressure or called realese, where successively realese 100%, 75%, 50%, 25%, and 0% at pressures of 915 Psi, 690 Psi, 435 Psi, 240 Psi, 0 Psi with the results of no leakage and observation test results in accordance with the acceptance criteria. So it can be concluded that the welded joints of carbon steel pipes tested using hydrotest, no deformation occurs, there is no change in shape and there are no leaks in the welded joint layer of A106 Gr.B carbon steel pipe
Co-Authors Abd. Muqit Agus Hardjito Agus Harijono Agus Setiawan AGUS SETIAWAN Agus Sujatmiko Akhlis Rizza, Muhammad Akhmad Faizin Akhmad Faizin Akka Sunoko Amrullah, Miftahul Asrori Asrori Bambang Irawan Bambang Irawan Bayu Pranoto Bima Cahya Maula Dana Budi Eko Prasetyo Danang Risky Suhadi Dani, Agus Eko Yudiyanto Elka Faizal Elka Faizal Etik Puspitasari Etik Puspitasari, Etik Faizal, Elka Gumono Gumono Gunawan, Chandra Hadi Samsul Hadi Susilo, Sugeng Hangga Wicaksono Hangga Wicaksono Harijono, Agus Haris Puspito Buwono Heru Prasetyo Heru Suryanto Heryanto Heryanto Kasijanto Kasijanto Kasijanto, Kasijanto Lisa Agustriyana Lisa Agustriyana Listiyono Moh. Nasir Mohammad Noor Hidayat Muhammad Fakhruddin NASIR, MOH. Nugroho, Pipit Wahyu Pondi Udianto Pranoto, Bayu Purwoko Purwoko Putu Wijaya Sunu R.N. Akhsanu Takwim, R.N. Akhsanu Rahmad, Cahya Raihan Insan Nararya Ratna Monasari Rifa’i, Muhamad Riskitasari, Septyana Risno Bayu Riswan E.W. Susanto Riswan E.W. Susanto Robbi Malik Rudy Soenoko Sadar Wahjudi Samsul Hadi Sarjiyana Satworo Adiwidodo Siti Duratun Nasiqiati Rosady Subagiyo Subagiyo Sugeng Hadi Susilo Sugeng Hadi Susilo Sulistyono Sulistyono Syamsul Syamsul Hadi Syamsul Ph.D M.A. Hadi Talifatim Machfuroh Talifatim Machfuroh Talifatim Machfuroh, Talifatim Walid, Achmad Wicaksono, Hangga Yudy Surya Irawan Yuniarto Agus Winoko Zakki Fuadi Emzain