New Research Tendency of Manufacturing Technology of High Formability and High Strength Steel Tube

With the rapid development of the steel tube secondary forming technology, various kinds of lightweight components manufactured from steel tubes are widely used in the automotive, space-craft and aircraft manufacturing industries due to their advantages such as being lightweight, good rigidity, saving of energy and lower material consumption and so on.Along with increasingly stringent requirements for the strength and formability of the steel products by the secondary forming process, the manufacturing technology of the tube with higher strength and better formability has drawn so much attention.Summarized in this paper are the novel manufacturing technologies of the dual phase steel tube and TRIP steel tubes with higher formability.And part of the achievements in developing the TRIP steel tube as made by the co-authors is detailed.