Calculation of Modes of Arc Welding under the Flux of Double-Sided Butt Joints

This paper gives the analysis of energy costs for arc automatic welding under the flux of double-sided butt joint without edge preparation according to the thickness of welding sheets. The coefficients for a linear dependence of specific energy from plate thickness are obtained. From this, a calcula...

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Bibliographic Details
Published inMaterials science forum Vol. 946; pp. 889 - 894
Main Author Sidorov, Vladimir P.
Format Journal Article
LanguageEnglish
Published Pfaffikon Trans Tech Publications Ltd 01.02.2019
Subjects
Arc welding
Butt joints
Butt welding
Welded joints
Welding fluxes
Welding Energy
Penetration Area
Mode
Welding under Flux
Joint Efficiency
Arc Polarity
Double-Sided Weld
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Summary:This paper gives the analysis of energy costs for arc automatic welding under the flux of double-sided butt joint without edge preparation according to the thickness of welding sheets. The coefficients for a linear dependence of specific energy from plate thickness are obtained. From this, a calculation method of effective power, current and arc voltage is proposed according to the joint formation speed. To calculate a fusion area of a weld section, a model of a surficial normal-circular heat source with an average heat flow in a heating spot 14−16 kW/cm2 is used. Acceptable convergence of target and experimental cross-section areas of a weld is achieved for an arc reverse polarity. Calculation method let take into account the influence of arc polarity on a fusion area of a base metal. Main efficiency factors of a double-sided welding are defined. Possible reasons of augmentation of fusion effectiveness of a base metal in comparison with the electrode metal are noted.
Bibliography:Selected, peer reviewed papers from the International Russian Conference on Materials Science and Metallurgical Technology (RusMetalCon 2018), October 1-4, 2018, Chelyabinsk, Russian Federation
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.946.889