Effect of Electric Arc Welding on Impact Of Different Mild Steel Weld Geometries
DOI:
https://doi.org/10.37255/jme.v15i2pp34-37Keywords:
welding, current, electrode diameter, Charpy impact testAbstract
The effect of welding parameters (current, electrode diameter) on the impact of low carbon steel specimens was investigated in this work. Two different geometries namely square butt welded joint and double V welded joint were created. The welding operation was carried out at three different current for welding currents of 90, 110 and 130 amps and electrode diameters of 2.5, 3.2 and 4mm respectively. A Charpy impact testing machine was used to evaluate the impact of the welded samples. It was observed that a low current of 90 Amps for all the welding electrode diameters produced high impact values for both the welding geometries. Also, the 3.2 mm electrode diameter was found to be more suitable for welding the square butt and the double V geometry as it yielded higher impact values. Additionally, the double V geometry showed better performance when compared to the square butt geometry for all the combinations of welding currents and electrode diameters.
Downloads
References
Armentani E, Esposito R and Sepe R (2007), “The effect of thermal properties and weld efficiency on residual stresses in welding”, J. Achievements Mater. Manufact. Eng., vol. 20: 319-322.
Jariyaboon M, Davenport A J, Ambat R, Connolly B J, Williams S W and Price D A (2007), “The effect of welding parameters on the corrosion behaviour of friction stir welded AA2024-T351”, Corrosion Sci., vol. 49: 877-909
Kou S (2003), “Welding Metallurgy”. 2nd Edition, John Wiley& Sons, Inc., Hoboken, New Jersey.
Gery H, Long P and Maropoulos E, (2005), “Effects of Welding Speed, Energy Input and Heat Source Distribution on Temperature Variations in but Joint Welding”. J. Mater. Proc. Technol., vol. 167: 393-401.
Lee C H and Bhadeshia H K D H (2003), “Effect of plastic deformation on the formation of accicular ferrite”, Mater. Sci. Eng. A, vol. 360: 249-257.
Yayla P, Kaluc E and Ural K (2007), “Effect of welding processes on the mechanical properties of HY 80 steel weldments, Mater. Des., vol. 28: 1898-906.
Weihua S, Guodong W, Jiming Z, Dianxiu X and Hao S (2009), “Microstructural characterization of high heat input welding joint of HSLA steel plate for oil storage construction”, J. Mater. Sci. Technol., vol. 25: 857-60.
Güral A, Bostan B and Özdemir A T (2007), “Heat Treatment in Two Phase Region and its Effect on Welding of a Low Carbon Steel”, Mater. Des., vol. 28: 897-903.
Eroglu and Aksoy M (2000), “Effect of Initial Grain Size on Microstructure and Toughness”, Mater. Sci. Eng. A, vol. 286: 289-297.