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Haliq, Ridhwan
Institut Teknologi Kalimantan
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Journal : specta journal of technology

 1 
Analisis Pengaruh Variasi Arus dan Sudut Kampuh dengan Metode Pengelasan GTAW terhadap Sifat Mekanik dan Struktur Mikro Baja ST 41 Haliq, Ridhwan; Raharjo, Himawan Tri
SPECTA Journal of Technology Vol 2 No 2 (2018): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v2i2.104

Abstract

The objective of research is to determine the effect of welding current on the hardness, tensile strength, and microstructure from GTAW welding with ER70S2. This research used ST 41 low alloy steel material containing C = 0,16 %, Si = 0,23 %, Mn = 0,69 %, S = 0,031 %, P=0,019 %, yield point 40 kg/mm2, tensile strength 52 kg/mm2, dan elongation 32 %. ST 41 steel welding is carried out with current variations of 90 A, 110 A and 130 A with GTAW welding methode. Types of variation of the notch use are ][, V and X. The specimens was subjected to hardness, tensile strength, and metallography. Based on the result of hardness test with the factor elimination method in obtaining the angle ][ notch with current 90 A, V notch with current 90 A, and X notch with current 110 A. Tensile test results of the three materials, the highest tensile strength at the X notch with current 110 A is 416,8 N/mm2. The lowest tensile strength is obtained at welds with ][ notch is 360.73 N/mm2. From result of metallograph that we get if X notch with current 110 A is more stable, than ][ notch with current 90 A and V notch with current 90 A.
Analisis Pengaruh Variasi Arus dan Sudut Kampuh dengan Metode Pengelasan GTAW terhadap Sifat Mekanik dan Struktur Mikro Baja ST 41 Ridhwan Haliq; Himawan Tri Raharjo
SPECTA Journal of Technology Vol. 2 No. 2 (2018): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (846.911 KB) | DOI: 10.35718/specta.v2i2.104

Abstract

The objective of research is to determine the effect of welding current on the hardness, tensile strength, and microstructure from GTAW welding with ER70S2. This research used ST 41 low alloy steel material containing C = 0,16 %, Si = 0,23 %, Mn = 0,69 %, S = 0,031 %, P=0,019 %, yield point 40 kg/mm2, tensile strength 52 kg/mm2, dan elongation 32 %. ST 41 steel welding is carried out with current variations of 90 A, 110 A and 130 A with GTAW welding methode. Types of variation of the notch use are ][, V and X. The specimens was subjected to hardness, tensile strength, and metallography. Based on the result of hardness test with the factor elimination method in obtaining the angle ][ notch with current 90 A, V notch with current 90 A, and X notch with current 110 A. Tensile test results of the three materials, the highest tensile strength at the X notch with current 110 A is 416,8 N/mm2. The lowest tensile strength is obtained at welds with ][ notch is 360.73 N/mm2. From result of metallograph that we get if X notch with current 110 A is more stable, than ][ notch with current 90 A and V notch with current 90 A.
Co-Authors Aji Bagas Caesar Al Amin, Moch. Karim Alvalo Wibowo Andre Amba Matarru Anggara, Dika Ariel Muda Simanungkalit Azhar Syafiq Putra Bahri, Ghaly Bahtiar Qurunul Chaerul Qalbi Chaerul Qalbi AM Cut Keumala Banaget Devy Setiorini Sa’adiyah Devy Setioroni Sa'adiyah Diana Nurlaily Dianiswara, Anggoronadhi Dika Anggara Dini Arianti Djafar, Alfian Endrawati, Budiani Fitria Eriek Wahyu Restu Widodo Eriek Widodo Ersamada Sinaga Faisal - Manta Fajar Habib Syarifudin Firman Ali Nuryanto Gad Gunawan Hakiky, Rizal Muhammad Haryono, Hadhimas Dwi Herman Susilo Himawan Tri Raharjo I Made Ivan Wiyarta Cakra Sujana Idhil Ismail, Andi Imah Kusminah Ismail Aman Jamal Nur Faisal Jamil, Muchammad Jeriko Silalahi Julianto Hadi Kholiq Deliasgarin Radhyantho Kholiq Deliasgarin Radyantho Kurniawati, Diniar Mungil Kusminah, Imah Luluk Laksono, Andromeda Dwi Margyatno, Ageng Martina Puspita Sari Matin, Qowi Millah, Nasrul Moch. Karim Al Amin Moh. Syaiful Amri Muchammad Jamil Mufadhol, Andiko Na’im Muhammad Adzar Priatna Muhammad Fiqriadi Muhammad Haedir Ali Ahmad Muhammad Kamil Muhammad Nashruddin Muhammad Rafli Muhammad Triatmojo Nur Fajri Azhar Pramana, Muhammad Ardi Dwi Putri Ayu Tri Ashshofiah Raharjo, Himawan Tri Rasidah Rasidah, Rasidah Reihanda Fikri Wirayudha Reza Naufal Hanifudin Rijal Surya Rahmany Risky Setiani Putri Rizki Rama Aditia Amril Rosita Hanna Sri Yuliani B.P Sena Sukmananda Suprapto shoodiqin, dian mart Suci Nur Kholifah Sukma Maharany Sulistyowati, Ria Adha Syahrul Gunawan Syuhada, Subhan Tegar Palyus Fiqar Valentino Rifai Oroh Wahab, Mohammad Abdul Wibowo, Alvalo Toto Yonathan Parsualin Lobo Silalahi Yongki Christandi Batubara Yunita Triana, Yunita