In this paper

the crimping structure and forming process of GIL product is studied on the basis of the finite element simulation analysis method. With firm top wedge and minimum stress on insulator as the goal

the research on top wedge optimization is performed and the optimal value of top wedge force is determined. Based on the principle that the plastic radial displacement of the metal cylinder end is the most sufficient and not excessive

the optimization research of shrinkage orifice is carried out and the optimal value of the shrinkage orifice force is determined. The accurate modeling of the final object after the plastic shaping of the structure is solved by using the advantage of finite element analysis methods

which provides a model basis for the analysis of the electric field and temperature field of GIL product. The GIL test piece of the crimping structure is manufactured in accordance with the optimal process parameters of the top wedge force and shrinkage force is produced

The series test verification of the actual test piece is completed and passed and the effectiveness of the finite element optimization is defined.