VARIASI ARUS PENGELASAN SMAW TERHADAP KEKERASAN LOGAM LAS DAN HAZ MATERIAL BAJA ST 37
Keywords:
SMAW Welding, Low Carbon Steel, Hardness Test Method RockwellAbstract
This research aims to determine the effect of welding current on the hardness of weld metal and HAZ (heat affected zone) metal which is tested for hardness using the Rockwell method. This research was carried out on ST 37 low carbon steel material which was welded using an E6013 electrode with a diameter of 2.6 mm with a butt joint, then given different welding currents, namely 80, 100 Ampere. For specimens that were given a welding current of 80 Ampere, the average hardness of the weld metal obtained was 47.05 HRB and the HAZ was 50.3 HRB. Then the specimens that were welded with a current of 100 Ampere had an average weld metal hardness figure of 48.15 HRB and a HAZ of 50.5 HRB. The test results show that the increase in the hardness number in both the weld metal and the HAZ metal is directly proportional to the amount of current used when welding. The test results show that the increase in the hardness number in both the weld metal ) and in metal the HAZ is directly proportional to the amount of current used when welding.
References
Pengetahuan Teknologi Bahan. Universitas Sahid Surakarta,Surakarta :2015
M. Zaenal Mawahib, Sarjito Jokosisworo, Hartono Yudo,”Pengujian Tarik dan Impak pada Pengerjaan Pengelasan SMAW dengan Mesin Genset Menggunakan Diameter Elektroda yang Berbeda,” Jurnal Ilmu Pengetahuan & Teknologi Kelautan, Kapal, Vol. 14, No. 1, pp. 26 – 32, Februari 2017.
Anhar Muh “Pendinginan Pengelasan dengan Metode SMAW pada Kekerasan Baja Karbon ST37 dengan Media Serbuk Semen Abu-Abu pada Beban Rockwell 100 kgf” ROTASI, Vol. 21 No. 3 (Juli 2019) Hal. 140-146
Anhar Muh “ The Effect Of Addition Of Limestone Powder And Gypsum As Isolator Media On Low Carbon Steel SMAW Welding” Journal of Applied Engineering and novTechnological Science Vol 2(2) 2021 : 46-54
Ruchiyat Asep dkk “The Effect Of Heating Temperatureon The Hardness, Microstructure And V-Bending Springback Results On Commercial Steel Plate” Journal of Applied Engineering and Technological ScienceVol 1(1) 2019 : 1-16
Abdul Hamid ,”Analisa Pengaruh Arus Pengelasan SMAWpada Material Baja Karbon Rendah Terhadap Kekuatan Material Hasil Sambungan,” Jurnal Teknik Elektro Universitas Mercubuana, Vol.7, No.1, pp.26 – 36 Januari 2016
Maulana Yassyir “Analisis Kekuatan Tarik Baja St37 Pasca Pengelasan Dengan Variasi Media Pendingin Menggunakan Smaw “ Jurnal Teknik Mesin UNISKA Vol. 02 No. 01 November 2016
Anhar Muh , Ruchiyat Asep “Pendinginan Pengelasan menggunakan Metode SMAW pada Kekerasan Baja Karbon ST3 dengan Media Serbuk Semen Putih dan Beban Rockwell 100kgf” Jurnal Teknologi dan Rekayasa Manufaktur Vol 2 (2) 2020 :39-48
Indonesian Society of Applied Science (ISAS)
