Effect of the parameters of pulsed arc welding on the formation of a root layer in a narrow gap

Krampit, A.G.; Krampit, N.Yu.; Крампит, М А

doi:10.1080/09507116.2013.849393

Cited by 8 publications

(6 citation statements)

References 1 publication

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“…Here instead of a ballast resistance, there appears a wire overhang between contact tips 2 and 3 that functions as a ballast resistance. The above construction formed the basis of an apparatus that heats an electrode at the length of the electrode wire with the second contact tip [5]. Routine of an experiment with this type of is described in the paper [6].…”

Section: The Main Partmentioning

confidence: 99%

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Determination of a Wire Heat Temperature under a Pulse-Arc Welding Condition by Means of a Calculation and Graphic Method

Krampit

2014

AMM

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Section: The Main Partmentioning

confidence: 99%

“…The above construction formed the basis of an apparatus that heats an electrode at the length of the electrode wire with the second contact tip [5]. Routine of an experiment with this type of is described in the paper [6].…”

Section: The Main Partmentioning

confidence: 99%

Determination of a Wire Heat Temperature under a Pulse-Arc Welding Condition by Means of a Calculation and Graphic Method

Krampit

2014

AMM

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“…The impact of gas ow rates on weld joint quality was investigated. Krampit et al [4] investigated the pulsed arc welding parameters' impact on forming a narrow gap's root layer. It was reported that the increasing pulse current time and decreasing pulse amplitude and frequency resulted in deeper penetration.…”

Section: Introductionmentioning

confidence: 99%

Study on the arc behavior and mechanical properties of energy-efficient hybrid CMT-pulsed gas metal arc narrow gap mild steel welds

Polamuri,

Nasina,

Biswajyoti

et al. 2023

Int J Adv Manuf Technol

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The novel hybrid cold metal transfer (CMT) -Pulsed gas metal arc welding (P-GMAW) process was used to perform the narrow gap welding of mild steel plates. A systematic approach was followed to select the working values of numerous process parameters using high-speed images of the welding arc in synchronization with the welding current and voltage. Further, emphasis was given to understanding the in uence of pulse frequency on the complex arc and metal transfer behavior in the narrow gap and its subsequent effect on the side wall fusion and mechanical properties of weld joints. The root pass was deposited using CMT process, while the lling and closing passes were deposited using P-GMAW process to minimize the incomplete fusion between the layers keeping the overall heat input lower. A decrease in the narrow gap distance and an increase in the arc oscillation amplitude and welding voltage resulted in severe arc climbing over the facing surface, an inadequate fusion between the layers, and incomplete side wall fusion. Simultaneously decreasing the number of passes and welding speed engendered the overhead ow of the molten pool and hindered the heat transfer from the arc to the already deposited layer resulting in the lack of fusion. Pulse current and duration directly affect the welding arc lengths, resulting in higher welding arc de ections to the side walls in the case of lower pulse frequencies. The controlled welding arc de ections, molten metal transfer, and inter-pulse cooling displayed a noticeable effect on the mechanical properties of the weld joint.

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“…Intergranular corrosion (IGC) can be reduced if welding energy parameters are controlled by applying a high-frequency pulses [10], transition of droplets into the molten pool is regulated using a pulsed wire feed [11], inverter power sources are applied [12], the weld pool is protected with gas [13]. Welds will have a high resistance to hot cracking and intergranular corrosion if the weld metal has a two-phase austenitic-ferrite structure.…”

Section: Introductionmentioning

confidence: 99%

Corrosion and Mechanical Properties of Austenic Steel Weld Joints

Kuznetsov

Zernin

Данилов

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Effect of the parameters of pulsed arc welding on the formation of a root layer in a narrow gap

Cited by 8 publications

References 1 publication

Determination of a Wire Heat Temperature under a Pulse-Arc Welding Condition by Means of a Calculation and Graphic Method

Determination of a Wire Heat Temperature under a Pulse-Arc Welding Condition by Means of a Calculation and Graphic Method

Study on the arc behavior and mechanical properties of energy-efficient hybrid CMT-pulsed gas metal arc narrow gap mild steel welds

Corrosion and Mechanical Properties of Austenic Steel Weld Joints

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