Journal of Mechanical Science and Technology

, Volume 31, Issue 3, pp 1383–1390 | Cite as

Arc characterization study for submerged arc welding of HSLA (API X80) steel

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Abstract

The load bearing capacity of weld is highly influenced by the mode of metal transfer which in turn is dependent on welding current and arc voltage. This paper presents the results of V-I (voltage-current) transient investigation carried out for Submerged arc welding (SAW) of API X80 steel at three different levels of heat input (20 kJ/cm; 25 kJ/cm; 27 kJ/cm). Statistical analysis and Probability density distribution (PDD) curves of recorded V-I transient data are presented for arc voltage as well as welding current. Through this study, an attempt has been made to correlate PDD curves with the metal transfer characteristic of the welding arc. Work described in this paper paves the way to provide a feedback to achieve the online monitoring and automatic control of the weld quality.

Keywords

Metal transfer Arc characteristics Probability density distribution Submerged arc welding V-I transient 
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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Division of Manufacturing Processes and Automation EngineeringNetaji Subhas Institute of TechnologyNew DelhiIndia

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