Bending Steel Billet on Presses of Tube Electrical Welding Aggregation

Abstract:

At the production of the steel thick-walled large-diameter pipes according to UOE-technology at the tube electrical welding aggregation 1020 (TEWA 1020), the steel sheet is in series bent on the flanging press, the pre-forming press and the final-forming press. When the steel sheet is deformed on the final-forming press, the excessively curved sections of the sheet are partially unbent in the opposite direction. The calculation of sheet’s curvature at the alternating bending causes the significant difficulties because of Bauschinger’s effect at bending, in which the mechanical characteristics of the steel change significantly. In this paper, the analytical method for calculating the final curvature of steel pipe billet at the alternating bend at UOE-technology is proposed. The results of the paper can be applied in metallurgy.

• Periodical: Solid State Phenomena (Volume 316)
• Pages: 300-305
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.316.300
• Online since: April 2021
• Authors: Vladimir N. Shinkin*
• Keywords: Bauschinger’s Effect, Bending Moment, Elastoplastic Bending

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