PENGARUH JENIS ELEKTRODA TERHADAP SIFAT MEKANIK HASIL PENGELASAN SMAW MATERIAL BAJA ST 42
DOI:
https://doi.org/10.26740/otopro.v20n2.p56-61Keywords:
ST 42 steel, Electrode, SMAW weldingAbstract
SMAW (Shield Metal Arc Welding) is an activity carried out in the joining process which has a metal base material. The purpose of the study was to analyze the tensile strength results, and to determine the microstructure of the strongest electrode. using three types of electrodes RB-26, RD-250 and LB-52U electrode diameter 2.6mm on ST37 steel plate with ASTM E8 specimens with a length of 200mm, a width of 20mm and a thickness of 3mm. SMAW welding process with a welding current of 95A, with a position of 1G (flat). This study uses a descriptive quantitative statistical data processing method of experiments using Microsoft Excel software. From the results of the study there is a significant influence on the tensile strength of the three electrode variations. The highest tensile strength results are shown in the RD-260 electrode with a tensile strength of 513.28MPa and the lowest is the LB-260 electrode with a tensile strength of 478.09MPa. The results of microstructure testing with 200x and 400x measurements show that pearlite is the most abundant in the RB-26 electrode and ferrite is the most abundant in the RD-260 electrode. From the tensile test and microstructure test, there is a mutually influencing relationship that the highest tensile strength is the RD-260 electrode type, proven by the greater dominance of ferrite which is softer and more ductile. This finding indicates that the selection of electrode type plays an important role in determining the mechanical properties of the welding results.
References
Saodah, Q. Amini, K. Rizkyah, S. Nuralviah, and N. Urfany, “Pengaruh Globalisasi Terhadap Siswa Sekolah Dasar,” J. Pendidik. dan Dakwah, vol. 2, no. 3, pp. 375– 385, 2020.
R. F. G. Reymond and M. Sabri, “Analisa Sifat Mekanik Dan Struktur Mikro Terhadap Pengelasan Baja Aisi 1045 Dengan Metode Smaw Dan Gtaw Pada Arus 100 Ampere,” Dinamis, vol. 9, no. 2, p.7, 2021, doi:10.32734/dinamis.v9i2.8445.
M. Jordi, H. Yudo, and S. Jokosisworo, “Analisa Pengaruh Proses Quenching Dengan Media Berbeda Terhadap Kekuatan Tarik dan Kekerasan Baja St 36 Dengan Pengelasan SMAW,” J. Tek. Perkapalan, vol. 5, no. 4, pp. 272–281, 2017.
H. Helanianto, E. Epriyandi, and H. Rahmadi, “Pengaruh Variasi Arus Pengelasan Smaw Terhadap Kekerasan Logam Induk Dan Logam Las,” Elem. J. Tek. Mesin, vol. 7, no. 2, pp. 138–147, 2020, doi: 10.34128/je.v7i2.148.
A. Farhan, U. Budiarto, A. Wibawa, and B. Santosa, “Analis Perbandingan Kekuatan Tarik, Tekuk, dan Mikrografi Pada Sambungan Las Baja SS 400 Akibat Pengelasan Flux-Cored Arc Welding (FCAW) Dengan Variasi Suhu Normalizing,” J. Tek. Perkapalan, vol. 7, no. 4, pp. 323–333, 2019.
A. Akhyar, K. Khairil, A. Farhan, M. Ibrahim, and Suhaeri, “Produksi Baling-Baling Kapal dari Logam Daur Ulang melalui Teknik Pengecoran Logam,” J. Tek. Mesin Unsyiah, vol. 8, no. 2, pp. 32–35, 2020.
A. Taufik, A. E. Purkuncoro, A. Kurniawan, and T. Hidayar, “Peningkatan Keahlian Proses Pengelasan Anak-Anak Putus Sekolah Kota Malang,” Abdimas Galuh, vol. 2, no. 1, p. 25, 2020, doi: 10.25157/ag.v2i1.3312.
J. Michael, “Analisis Kekuatan Mekanis Besi Hollow Baja Ringan C-4130,” Universitas Hasanuddin, 2022.
S. Muddin, J. Jamaluddin, R. Eka Putra, and S. Sahrul, “Analisis Kekuatan Tarik Pengaruh Perlakuan Panas Hasil Pengelasan Kampuh V Baja 42 Dengan Media Pendingin Air Dan Oli,” ILTEK J. Teknol., vol. 16, no. 1, pp. 6–10, 2021, doi: 10.47398/iltek.v16i1.584.
A. P. G. Regy and Maulida, “PENGARUH KOMPOSISI PENGISI SERTA TEKANAN HOT PRESS TERHADAP KEKUATAN TARIK KOMPOSIT POLIESTER BERPENGISI NANO PARTIKEL ZINC OXIDE (ZnO),” J. Tek. Kim. USU, vol. 8, no. 1, pp. 32–36, 2019, doi: 10.32734/jtk.v8i1.1603.
Anwar, “Analisis Perbandingan Penggunaan Elektroda RB-26, dan Lion-26 Terhadap Kekuatan Tarik Baja Lunak ST 37,” Universitas Negeri Makassar, 2023.
M. Jazali, M. H. Bahri, and A. Abidin, “Variasi Kampuh Pengelasan Smaw Pada Plat Baja Ss400 Terhadap Kekuatan Tarik Dan Mikrostruktur,” Natl. Multidispline Sci., vol. 3, no. 1, pp. 319–326, 2024.
Y. Arham, “Pengaruh jenis kampuh V dan X terhadap struktur mikro dan kekuatan impak pada pengelasan baja karbon,” ENTHALPY - J. Ilm. Mhs. Tek. Mesin, vol. 2, no. 2, pp. 8–12, 2016.
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