scholarly journals The effect of the parameters of submerged arc surfacing with oscillating electrode on a padding weld forming, depth of fusion penetration and the content of parent metal in a weld

2018 ◽  
Vol 90 (10) ◽  
Author(s):  
Igor A. Ryabtsev ◽  
Anatolij A. Babinets ◽  
Iwan P. Lentjugow
Keyword(s):  
Parent Material ◽  
Fusion Line ◽  
Chemical Inhomogeneity ◽  
Movement Amplitude ◽  
Parent Metal ◽  
Electrode Wire ◽  
Weld Forming ◽  
Submerged Arc

The effect of oscillating movement amplitude and frequency of electrode wire swinging on forming of pad weld runs, the character of parent metal penetration, as well as structural and chemical inhomogeneityin the zone of intermixing padding weld with parent material has beentested while submerged arc surfacing using oscillating electrode. It has been stated that along with increasing frequency of electrode wire end oscillations and the same amplitude and surfacing speed, the weld runformation is improved, the width of the zone of padding weld intermixture with parent material is reduced and more dispersive structure with lower structural and chemical inhomogeneity in a padding weld is be- ing formed. More uniform fusion penetration into the parent material and alignment of fusion line can be observed. Those relations remain practically unchanged with increasing amplitude of oscillation.

Features of Arc Surfacing Process in a Longitudinal Magnetic Field

2014 ◽  
Vol 682 ◽  
pp. 313-318 ◽  
Author(s):  
Alexander D. Razmyshlyaev ◽  
Marina V. Ahieieva
Keyword(s):  
Magnetic Field ◽  
Liquid Metal ◽  
Penetration Depth ◽  
Longitudinal Magnetic Field ◽  
Parent Metal ◽  
Magnetostatic Field ◽  
Maximum Gain ◽  
Electrode Wire ◽  
Magnetic Wires ◽  
Submerged Arc

The electrode wire melting coefficient (αm) is determined for the submerged arc surfacing and welding in a longitudinal magnetic field (LMF) under reverse and direct polarities with ferromagnetic and paramagnetic (non-magnetic) wires. The maximum gain in the wire melting coefficient is achieved in the magnetostatic field assisted surfacing and welding. The effect reduces with the LMF frequency increasing to 4-6 Hz and virtually does not change with the further increase to 50 Hz. The electrode wire melting coefficient is shown to increase depending on magnetic properties.It has been established that the penetration depth of the parent metal reduces at the 50 Hz LMF surfacing when the longitudinal induction exceeds 65 mT.The constant and alternating LMFs reduce the speed of in-bath liquid metal flows, which results in the reduced parent metal penetration efficiency at surfacing.

Magnetic Properties of Materials Used in Electric Arc Welding and Surfacing

2018 ◽  
Vol 938 ◽  
pp. 33-40
Author(s):  
Alexander D. Razmyshlyaev ◽  
Marina V. Ahieieva ◽  
Elena V. Lavrova
Keyword(s):  
Magnetic Properties ◽  
Magnetic Fields ◽  
Arc Welding ◽  
Primary Circuit ◽  
Secondary Circuit ◽  
Electrode Wire ◽  
Electric Arc Welding ◽  
Materials Used ◽  
Submerged Arc ◽  
Welding Materials

It was experimentally established earlier that the increment of the electrode wire melting coefficient at submerged arc welding and surfacing with magnetic fields action (with equal parameters of the welding mode) depends on the chemical composition of the wires. It is suggested that this effect depends on the magnetic properties of the welding materials, i.e. electrode wire and base metal. To measure the magnetic properties of welding materials, a method has been developed in which the magnetic properties of welding materials on samples are investigated. The samples were made in the form of tori, on which the primary and secondary windings were placed. The primary circuit contains an ammeter and a voltmeter, as well as a wattmeter that allows to take into account losses in the sample on hysteresis and Foucault currents, and the secondary circuit contains a voltmeter. Experimental data on the magnetic properties of some welding and surfacing wires, as well as of base metals, are obtained. A simplified method is proposed, in which torus samples are also used, but on which only one winding is placed, over which a direct current is flowed. The value of the increment of the electrode wire melting coefficient at arc welding with the action of magnetic fields increases with increasing their magnetic permeability.

Heating and melting of the parent metal in submerged-arc surfacing with a composite strip electrode

2014 ◽  
Vol 29 (4) ◽  
pp. 291-295 ◽  
Author(s):  
V.N. Matviyenko ◽  
L.K. Leschinsky ◽  
V.A. Mazur
Keyword(s):  
Parent Metal ◽  
Strip Electrode ◽  
Submerged Arc

scholarly journals Microstructural Characterization and Mechanical Properties of Electron Beam Welded Joint of High Strength Steel Grade S690QL

2016 ◽  
Vol 61 (2) ◽  
pp. 1193-1200 ◽  
Author(s):  
S. Błacha ◽  
M. St. Węglowski ◽  
S. Dymek ◽  
M. Kopuściański
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Heat Affected Zone ◽  
Welded Joint ◽  
High Strength ◽  
Microstructural Characterization ◽  
Parent Material ◽  
Steel Grade ◽  
Fusion Line ◽  
Metallographic Examination

Abstract In the paper the results of metallographic examination and mechanical properties of electron beam welded joint of quenched and tempered steel grade S690QL are presented. Metallographic examination revealed that the concentrated electron beam significantly affect the changes of microstructure in the steel. Parent material as a delivered condition (quenched and tempered) had a bainitic-martensitic microstructure at hardness about 290 HV0.5. After welding, the microstructure of heat affected zone is composed mainly of martensite (in the vicinity of the fusion line) of hardness 420 HV0.5. It should be noted, however, that the microstructure of steel in the heat affected zone varies with the distance from the fusion line. The observed microstructural changes were in accordance with the CCT-S transformation diagram for the examined steel.

scholarly journals Stainless steel submerged arc weld fusion line toughness

10.2172/50934 ◽  
1995 ◽  
Author(s):  
A.R. Rosenfield ◽  
P.R. Held ◽  
G.M. Wilkowski
Keyword(s):  
Stainless Steel ◽  
Fusion Line ◽  
Submerged Arc

MIG Welding of Aluminum Alloys

2019 ◽  
Author(s):  
K. Yasuda
Keyword(s):  
Aluminum Alloys ◽  
Aluminium Alloys ◽  
Inert Gas ◽  
Mig Welding ◽  
Parent Metal ◽  
Efficient Process ◽  
Highly Efficient ◽  
Electrode Wire ◽  
The Wire

MIG welding is used as a highly efficient process for various types of metal. It involves creating an arc between an electrode, wire and the metal to be welded (parent metal) under the gaseous shield of an inert gas such as argon, thereby causing the wire to melt and transfer to the parent metal. This paper mainly describes MIG welding in relation to aluminium alloys.

Efficiency of the process of penetration of the parent metal in submerged-arc surfacing

2012 ◽  
Vol 26 (11) ◽  
pp. 862-866 ◽  
Author(s):  
A. D. Razmyshlyaev ◽  
M. V. Mironova
Keyword(s):  
Parent Metal ◽  
Submerged Arc
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