Nonlinear finite element analysis of swaging process for automobile power steering hose

The power steering system of automobile is activated by high pressure filled within the power steering hose that is connected between the oil pump and the steering gear box with the metal fittings. The main function of the steering hose is to circulate oil without any oil leakage, for which both the hose and the metal fitting are swaged firmly. The swaging job of the steering hose with the metal fittings is performed with two sets of dies composed of specific jaws, and this job leads to the large deformation of both the rubber hose and the metal fitting. Thus, this swaging process is characterized by geometry, material and boundary nonlinearities. In this context, the current study intends to investigate the swaging process characteristics through the nonlinear finite element analysis.