Seamless Pipes Manufacturing Process Improvement Using Mandreling

Abstract:

The paper discusses the specific aspects of hot rolled seamless pipes manufacture using pipe rolling plants including screw-rolling mills. The method of accuracy enhancement of pipe dimensions, as well as external and internal surface quality improvement, is proposed. The article specifies the results of computer and physical modeling of the pipes mandreling process. The application of the mandreling process within the cage using different diameter mandrels is shown. We managed to decrease the typical mark caused by the metal deformation, due to the screw-rolling mill and to manufacture pipes with more accurate dimensions, as a result of the mandreling process modeling. The results of the physical experiment on mandreling the shell pierced at the screw-rolling mill showed a positive effect from the process of hollow billet cold treatment using the mandrel.

• Periodical: Solid State Phenomena (Volume 316)
• Pages: 402-407
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.316.402
• Online since: April 2021
• Authors: Aleksander V. Goncharuk*, Viktor A. Fadeev, Maksim V. Kadach
• Keywords: Mandrel, Mandreling, Pipe Internal Surface, Rolling Mill, Screw Rolling, Screw-Roll Piercing, Seamless Pipe, Stretching Using Dies

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