Abstract: The Object-oriented programming method is applied to the numerical simulation of the cold roll-forming, the code is the additions and deletions because of the clear administrative levels and high modularization. And the elastic-plastic large deformation spline strip method is updated. Combining with the flow model, the forming process of the channel is simulated successfully and the results of the example coincide with experimental result in relational document. The validity of the calculational method and the model is proved further.

Key words: Cold roll-forming, Flow model, Object-oriented programming method, Spline finite strip method