Image of Pengaruh Variasi Sudut Elektroda Terhadap Hasil Pengelasan Menggunakan Jenis Elektroda E7018 Pada Pengelasan Smaw Sistem Sliding Adaptive Two Axis With Speed Control
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Pengaruh Variasi Sudut Elektroda Terhadap Hasil Pengelasan Menggunakan Jenis Elektroda E7018 Pada Pengelasan Smaw Sistem Sliding Adaptive Two Axis With Speed Control

Shielded Metal Arc Welding (SMAW) is a welding technique that uses heat energy to melt the base metal. The heat generated from this process can reach temperatures up to 1,500 °C, which means that each weld area will experience different heating and cooling rates. This study aims to determine the effect of electrode angle variation on the welding results and to identify the welding outcomes on low carbon steel ASTM A 36 using SMAW. The welding was conducted in the flat position (1G) with a V-groove joint at a 60° angle. The SMAW welding machine used is a sliding adaptive two-axis system with speed control, and the type of electrode used is ESAB AWS E7018 with a diameter of 3.2
mm. The testing methods conducted include visual inspection, penetrant (Non- Destructive Test), and metallography (Destructive Test). The results from four different electrode angle variations indicated that almost all specimens experienced welding defects. However, the fewest welding defects were observed at a 70° electrode angle with a defect percentage of 3,85 %. At a 60° electrode angle, the defect percentage was 26,63 %; at an 80° angle, it was 26,24 %; and at a 90° angle, it was 18,29 %. The macro test results for the 70° electrode angle showed good welding results, with the weld deposit fully filled, full penetration, and no defects. The microstructural examination in the base metal (BM), weld metal (WM), and heat-affected zone (HAZ) at a magnification of 10x revealed ferrite and pearlite phases. There were no phase changes observed across the different electrode angle variations, as the current used was constant, and the cooling applied was air cooling or slow cooling.
Keywords: SMAW, BM, WM, and HAZ.

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Perpustakaan Universitas Riau 1907111468
1907111468
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No. Panggil
1907111468
Penerbit
Pekanbaru : Universitas Riau - F. Teknik - Teknik Mesin.,
Deskripsi Fisik
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Bahasa
Indonesia
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Klasifikasi
1907111468
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Tipe Media
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Tipe Pembawa
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Edisi
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Subjek
TEKNIK MESIN
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