Research on Hydroforming of Bimetallic Lined Pipe
A new kind of hydraulic expansion device for bimetallic CRA-lined pipe has been researched and developed, as well as its operational principal and technical characteristic were introduced. The stress and strain in the liner and outer pipe during the hydroforming process have been analyzed theoretically and the mechanism of hydraulic expansion method is studied, and the final forming pressure formula has been obtained. The theoretical analysis is verified by experimental investigation, the results indicate that the new technology is feasible and can be applied in industrial production.
Zhengyi Jiang and Chunliang Zhang
Q. Z. Chen et al., "Research on Hydroforming of Bimetallic Lined Pipe", Advanced Materials Research, Vols. 97-101, pp. 4172-4177, 2010