| 摘要 |
This invention relates to the manufacturing of a monobloc bundle of straight tubes, laterally contiguous and fixed together. Initially, the bundle is made of tubes which are laterally contiguous and which are not fixed together. An apparatus is used to fix together the tubes at one or at both ends. This apparatus consists of a means to form the bundle of tubes laterally contiguous but not fixed together, of a means to cut the bundle perpendicular to the axis of the tubes and of means to fix together the ends of the tubes in the plane of the cut. The bundle of tubes can be used to make the core of a sandwich panel.
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