Research of Methods of Accuracy Increase of Building Weld-Fabricated Constructions

Abstract:

Investigation of methods of quality improvement of weld-fabricated building constructions. It is emphasized, this issue is subject to economical, social-psychological and technical factors. To the maximum extent, quality of weld-fabricated building constructions is affected by observance of requirements for accuracy of size and shapes. Accuracy of size and shapes is subject to the values of welding deformation resulting from nonuniform heating of work-pieces in the welding process and of welding heat input. The maximum heat input is observed in the process of manual (MMA) welding, the minimum heat input is a feature of mechanized (Mig/Mag) welding). Use of mechanized methods of welding will reduce welding deformation level and improve accuracy to size of construction.Experimental investigations of butt and fillet shapes have verified the conclusion.

• Periodical: Applied Mechanics and Materials (Volumes 752-753)
• Pages: 564-567
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.752-753.564
• Online since: April 2015
• Authors: Valentina Parlashkevich*
• Keywords: (SAB Welding ), Accuracy of Size, Building Weld-Fabricated Constructions, Mig/Mag Welding, Minimum Values of Weld Fillets, MMA Welding, Residual Deformation, Residual Welding Stress, Welding Deformation, Welding Heat Input, Work-Pieces

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