Influência das correntes de soldagem do processo plasma-MIG sobre a geometria do cordão de solda e taxa de fusão do arame

Resende, André Alves de; Ferraresi, Valtair Antonio; Scotti, Américo; Dutra, Jair Carlos

doi:10.1590/s0104-92242009000400006

Cited by 1 publication

(2 citation statements)

References 2 publications

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, larger electric currents result in droplets with higher velocities, which may contribute, by momentum, to greater penetration. Already the increase of the welding speed decreases the welding energy and consequently decreases the penetration [10]. The voltage (MIG/MAG) tends to present more influences on other factors, such as the width.…”

Section: Weld Penetrationmentioning

confidence: 99%

See 1 more Smart Citation

Optimizing the Parameters of TIG-MIG/MAG Hybrid Welding on the Geometry of Bead Welding Using the Taguchi Method

Schneider¹,

Lisboa

Silva

et al. 2017

JMMP

View full text Add to dashboard Cite

Abstract:The main aim of this work was to evaluate the influence and optimize the factors of the TIG-MIG/MAG hybrid welding process on the geometry of the weld bead. An experimental design using the Taguchi methodology (robust design method) was used to conduct the experiments. The experiments were carried out according to an orthogonal matrix with 27 experiments, with three replicates each, totaling 81 test specimens. The factors (MIG/MAG shielding gas type, MIG/MAG voltage, MIG/MAG wire feed, gas flow rate of TIG, electric current intensity of TIG and welding speed) were varied with three levels each. Penetration, heat-affected zone (HAZ), bead width and bead height were the response variables analyzed. The results showed that the penetration was significantly influenced by the MIG/MAG wire feed, MIG/MAG shielding gas type, MIG/MAG voltage and welding speed. The HAZ has been influenced by MIG/MAG voltage, MIG/MAG shielding gas type, welding speed and electric current intensity of TIG. All factors had effects on the width, except the MIG/MAG wire feed. The bead height was significantly influenced by the MIG/MAG wire feed and by the electric current intensity of TIG. Optimizing the process was performed, so that for each output variable, the values of the factors that should be used were indicated, and the optimization was confirmed by welding test specimens.

show abstract

Section: Weld Penetrationmentioning

confidence: 99%

“…are used. Moreover, combinations between electric arc processes are used such as PAW with MIG/MAG [8][9][10] and TIG with MIG/MAG. According to Kanemaru [11], the latter has become a low-cost alternative because the equipment for electric arc welding, compared to that for LASERs, is less expensive.…”

Section: Introductionmentioning

confidence: 99%