Progress of Research on Weld-pipe Formation Process with FE Method

A general description concerning the commonly-used methods for analyzing weld-pipe formation process are presented,including the integral analytic method,the experimental research method,the energetic analyzing method,the CAD method and the finite element（FE）method,focusing on the actual applications of the FE method for research on weld pipe formation process as done both at home and abroad.It is concluded that as a most quickly-developed method in the recent years,the FE method is regarded as one of the important vehi-cles to be employed for research on weld pipe formation process in the future.However the mathematic and me-chanical issues concerning weld pipe deformation need to be further studied,while the math model needs to be continuously completed,particularly the full-flow process simulation of the multi-pass continuous formation pro-cess needs to be in-deep researched.