| 摘要 |
A method for manufacturing a curved tubular article (10) by providing a formable tubular preform (22); securing the ends of the preform to respectiv e coupling members (24, 26) which are capable of providing elongational tensio n on the preform; filling the hollow interior of the preform with a heated flu id which is at a pressure sufficient to support the preform; applying mechanica l pressure (46) to the exterior surface of the fluid-containing preform such that the preform is shaped into a predetermined three-dimensional serpentine configuration; replacing the heated fluid in the preform with a cooled fluid which sets the configuration of the preform; and removing the cooled fluid from the preform.
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