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Deformation Characteristic Analysis on Crimping of Large Diameter Welding Pipe

Crimping is widely used in production of large diameter submerged-arc welding pipes. In order to improve crimping forming quality, it is necessary to analysis deformation characteristic of crimping forming process. So, crimping is analyzed using finite element method. Taking the crimping of X80 steel Φ1219mm×22mm×12000mm welding pipe for instance, the crimping forming process is simulated by finite element (FE) code ABAQUS. In this paper, the simulation data is validated by product and a comparison showed a good agreement with product results. The stress/strain from simulation is discussed. Thus, the results of research provides a basis to improve crimping quality.