| 摘要 |
An apparatus (10, 32, 46, 56, 66, 70) for deforming the shape of a tubular element (12) which comprises a compressible expansion body (18, 36, 50, 60, 66, 74) being locatable in proximity to an inner surface or an outer surface of a tubular element, the compressible expansion body being mountable on a tool body (16, 34, 48, 58, 72); at least one outer surface of the expansion body being contactable with the inner surface or the outer surface of the tubular element when the expansion body is in its uncompressed state, the tool body being moveable longitudinally along the tubular element; the expansion body being compressible against the inner surface or the outer surface of the tubular element by the longitudinal movement of the tool body longitudinally along the tubular element; and the compression of the expansion body against the inner surface or the outer surface of the tubular element causing deformation of the shape of the tubular element so as to change its diameter longitudinally along a portion of the tubular element. |
