Professor of School of Engineering, Design and Built Environment, Western Sydney University, Australia. His research interests cover Industry 4.0, Additive Manufacturing, Advanced Engineering Materials and Structures (Metals and Composites), Multi-scale Modelling of Materials and Structures, Metal Forming and Metal Surface Treatment.
Abstract—Today, thin-walled and extra-thin-walled welded tubes of various diameters have high reliability and resistance to corrosion, which allows them to be used in many industries. For example, when creating frames for metal structures, manufacturing furniture, commercial and warehouse equipment, as well as in the oil and gas industry (trunk pipes for transporting fuel, casing and tubing). . Thin-walled pipes are pipes with a ratio of the outer diameter of the pipe to the wall thickness from 12.5 to 40, and extra-thin-walled pipes with a ratio exceeding 40. The technology of steel tube production is well known and used all over the world. However, in the manufacture of ultra-thin tube there are many problems. To ensure the production of welded pipes with the specified ratio of diameters to wall thickness, it is necessary to solve a number of technological problems, such as the choice of type and optimal welding parameters, optimal rolling pattern of the tube blank and process stability. Difficulties in the process of continuous roll forming of thin-walled and extra-thin-walled pipes are associated with ensuring the stability of the process and accurate feeding of the edges for welding. A common type of rejects when rolling a pipe billet is corrugation, which does not allow for high-quality pipe welding. Until recently, Russia did not have the technology to implement the production of ultra-thin steel tubes. The proposed technology allows to produce high-quality products.
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