| 摘要 |
A swaging apparatus includes a drawbar to be inserted in a tubular structure that is to be expanded radially. Two confinement structures define the axial boundaries of an annular pressure zone within which one or more elastically deformable pressurization rings are confined. One or both of these structures includes a plurality of arcuate segments elastically held together and presenting a cam surface. A cam ring interacts with that cam surface to radially expand a cylinder formed by the segments in response to swaging pressure, thereby preventing inelastic deformation of the pressurization rings. |
