Pengaruh Sudut Kampuh V Tunggal terhadap Sifat Mekanis Sambungan Las SMAW pada Pipa Baja Karbon API 5L X46
Abstract
Penelitian untuk mengetahui pengaruh sudut kampuh V pengelasan SMAW terhadap sifat mekanis sambungan las pada material pipa API 5L X46 telah dilakukan. Proses pengelasan dilakukan dengan sambungan butt-joint kampuh V tunggal menggunakan material pipa API 1104 5L grade X46 dengan tebal pipa 12,7 mm. Sudut kampuh yang digunakan adalah 45º, 50º, 55º, 60º, 65º, 70º, dan 75º. Sambungan lasan kemudian dilakukan beberapa pengujian meliputi inspeksi visual, uji NDT RI, uji metalografi menggunakan standar ASTM E340-15, uji kekerasan menggunakan standar ASTM E92-82, dan uji bending menggunakan standar API 1104. Hasil penelitian menunjukkan bahwa semakin besar sudut kampuh las maka heat input dan waktu proses semakin besar. Secara umum kekerasan HAZ dan WM meningkat seiring dengan peningkatan sudut kampuh. Nilai kekerasan sebesar 135,73 VHN pada HAZ, dan 146,19 VHN pada WM diperoleh pada sudut kampuh 75o. Tegangan bending maksimum pada root bend dan side bend test meningkat seiring dengan kenaikan sudut kampuh dan berturut-turut tercapai pada variasi sudut kampuh 60º sebesar 5.685 MPa dan 4.222 MPa, kemudian tegangan lentur menurun bila sudut kampuh membesar. Sudut kampuh 60o merupakan sudut kampuh optimal dari segi sifat mekanis sambungan dan produktifitas proses pengelasan.
Keywords
Full Text:
PDFReferences
(API), A. P. I. (2021). Welding of Pipelines and Related Facilities. In (Vol. 1104).
Darsin, M. D., Junusii, S., & Triawan, Y. I. (2010). Analisa sifat mekanik dan struktur mikro paduan Aluminium 5083 akibat pengelasan Metal Inert Gas (MIG) dengan variasi preheat dan post heat. Jurnal ROTOR, 3(2), 67-74.
Gejendhiran, S., Satheesh Kumar, V., & Sivakumar, A. (2014). A study of welding parameters on mechanical properties of gas metal arc welding and gas tungsten arc welding: A review. International Journal of Advanced Engineering Research and Studies, 3(2), 118-119.
Goetsch, D. L., Chalk, W. S., Nelson, J. A., & Rickman, R. L. (2010). Technical drawing and engineering communication, International student edition. Delmar Cengage Learning: Boston.
Hamin, M. (2014). Finite element analysis of residual stress in welded thick plates of a single butt weld with different included bevel angles. UTPEDIA, 10.
Huda, M., & Setiawan, F. (2016). Pengaruh variasi sudut kampuh V dan kuat arus dengan las shielded metal arc welding (SMAW) pada baja A36 terhadap sifat mekanik. Jurnal Ilmiah Teknik Mesin UMSIDA, 1-9.
Iswanto, P. T., Mudjijana, M., & Himarosa, R. A. (2017). Karakterisasi sambungan SMAW baja karbon rendah menggunakan 3 jenis elektroda. JMPM (Jurnal Material dan Proses Manufaktur), 1(2), 103-109. https://doi.org/10.18196/jmpm.v1i2.3612
Jain, R. K. (2013). Production technology (Manufacturing processes, technology and automation). Khana Publisher.
Kayode, J., Akinola, A. O., & Akinwekomi, A. D. (2020). Effects of bevel angle and heat input on tensile property and microstructures of mild steel weldments. Annals of the Faculty of Engineering Hunedoara, 18(1), 33-38.
Lee, S.-C., Jo, S. W., Yang, J. S., Choi, K. W., & Seo, J. K. (2016). Effects of reduction groove angle on strength characteristics of FCAW weldment. Journal of the Society of Naval Architects of Korea, 53(6), 473-481. https://doi.org/10.3744/SNAK.2016.53.6.473
Mahendramani, G., & Lakshmana Swamy, N. (2012). Effect of included angle in V-groove butt joints on shrinkages in submerged arc welding process. International Journal of Engineering Science and Technology (IJEST), 14.
Mishra, R. R., Tiwari, V. K., & Rajesha, S. (2014). A study of tensile strength of MIG and TIG welded dissimilar joints of mild steel and stainless steel. International Journal of Advances in Materials Science and Engineering, 3(2), 23-32.
Murugan, N., & Gunaraj, V. (2005). Prediction and control of weld bead geometry and shape relationships in submerged arc welding of pipes. Journal of Materials Processing Technology, 168(3), 478-487. https://doi.org/10.1016/j.jmatprotec.2005.03.001
Oyetunji, A. (2015). Influence of welding variables on the microstructural and tensile properties of 304L austenitic stainless steel heat affected zone. Journal of Science, Engineering and Technology, Kathmandu University, 11, 44-53.
Oyetunji, A., & Nwigboji, N. (2014). Effect of welding process, type of electrode and electrode core diameter on the tensile property of 304L austenitic stainless steel. Leonardo Electronics Journal of Practices and Technologies, 25, 210-222.
Pathak, D., Singh, R. P., Gaur, S., & Balu, V. (2021). Influence of groove angle on hardness and reinforcement height of shielded metal arc welded joints for low carbon AISI 1016 steel plates. Materials Today: Proceedings, 38, 40-43. https://doi.org/10.1016/j.matpr.2020.05.597
Pedapati, S., Sidiq, A.B., Awang, M., Hashim, F.M., & Jebaraj, S. (2017). Effect of bevel angles on tensile strength of SS304 steel weld joints. 2nd International Conference on Mechanical, Manufacturing and Process Plant Engineering, 95-106.
Putra, R. J., Arifin, N. L., Havwini, T., & Ariyanto, N. P. (2021). Kualifikasi welder FCAW-GS pada posisi 6G menggunakan multiple code (AWS D1. 1, ASME Sec. IX, dan ISO 9606-1). Jurnal Teknologi dan Riset Terapan (JATRA), 3(2), 64-72.
Srinivasa Rao, P., Gupta, O., & Murty, S. (2005). Influence of process parameters on bead geometry in pulsed gas metal arc welding. Paper presented at the IIW International Congress.
DOI: https://doi.org/10.18196/st.v25i2.16896
Refbacks
- There are currently no refbacks.
Copyright (c) 2022 Aris Widyo Nugroho, Sigit Hartanto, Muhammad Arinalhaq Eko Nugroho, Rela Adi Himarosa
Editorial Office :
SEMESTA TEKNIKA
Faculty of Engineering, Universitas Muhammadiyah Yogyakarta.
Jln. Brawijaya Tamantirto Kasihan Bantul 55183 Indonesia
Telp:(62)274-387656, Fax.:(62)274-387656
Email: semesta_teknika@umy.ac.id, semestateknika@umy.university
Website: http://http://journal.umy.ac.id/index.php/st
Semesta Teknika is licensed under a Creative Commons Attribution 4.0 International License.