| 摘要 |
A continuous external flare (16) is formed around the end of a metal tube (15) which is of elliptical cross-section by attaching a connector member (24,28) to the tube (15) and thereafter consequentially affixing to connector member (24,28) first and second flaring tools. Each tool has a pair of lugs (42,42 min ) sized to enter the open end of the tube (15) when the lugs are mutually proximal and the lugs (42) of the first tool are displaceable along the major axes X-X of the tube (15) whilst the lugs (42 min ) of the second tool are displaceable along the minor axis Y-Y of the tube (15). To operate each tool the lugs are displaced from their mutually proximal position along the relevant axis of the tube to engage the rim of the tube (15) and to cold-form the engaged portion of the rim into an external flare portion. Tube (15) incorporating flare end (16) is thereafter capable of being connected with good electrical connection to an end connector piece. |
