Prediction the Melting Characteristics of Self-Shielded Flux Cored arc Welding (FCAW-S) with Exothermic Addition (CuO-Al)

Prediction of phase composition and mechanical properties Fe–Cr–C–B–Ti–Cu hardfacing alloys: Modeling and experimental Validations

“…The following welding techniques are widely implemented in practice [ 39 , 40 ]: shielded metal arc welding (SMAW) [ 41 , 42 ], gas tungsten arc welding (GTAW [ 43 , 44 ] or TIG) [ 45 , 46 ], gas metal arc welding (GMAW or MIG), submerged arc welding (SAW), manual metal arc welding (MMA or MMAW) and flux-cored arc welding (FCAW) [ 2 , 14 , [47] , [48] , [49] , [50] , [51] ]. Self-shielded flux-cored wires arc welding (FCAW–S) is more environmentally friendly and more energy efficiency [ 52 ], higher productivity, high quality of the deposited metal, high deposition rate, arc visibility [ 41 , 48 , 49 ]. The flux cored wires segment is the most significant by type segment in the global market, and is expected to be the first preference [ 52 ].…”

“…Self-shielded flux-cored wires arc welding (FCAW–S) is more environmentally friendly and more energy efficiency [ 52 ], higher productivity, high quality of the deposited metal, high deposition rate, arc visibility [ 41 , 48 , 49 ]. The flux cored wires segment is the most significant by type segment in the global market, and is expected to be the first preference [ 52 ].…”

“…as well as the required quality of the deposited metal [ [108] , [109] , [110] , [111] , [112] ]. Many researchers propose the introduction of an exothermic addition into welding materials [ 2 , 48 , 52 , [113] , [114] , [115] , [116] ]. as a solution for the energy efficiency and productivity increasing.…”

Investigation of the arc stability during self-shielded flux-coed arc welding with exothermic additions

“…In this case it is of great interest to improve the energy efficiency of the welding process and the quality of deposited metal. One of the promising ways to improve the energy efficiency of the welding and hardfacing processes is the introduction of exothermic addition to the core filler [23,24]. The additional heat is generated at the electrode tip or in the welding arc by an exothermic reaction.…”

“…In self-shielded flux-cored wire arc welding with exothermic addition, the welding current will be determined not only by the wire feed speed (WFS) but also by the exothermic addition used and its amount (EA wt.%) in the core filler [24,33], as well as the contact tip to work distance (CTWD) and set arc welding (Uset) [44]. The first parameter is determined by the characteristic of the power supply.…”