Connection between tubes and tube bottom for a heat exchanger

Heat exchange – Tubular structure – With support or flow connector

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Details

165158, 165173, 21912164, 228183, F28F 918

Patent

active

057494142

ABSTRACT:
A heat exchanger assembly and method of making same are disclosed. A plurality of thin walled aluminum tubes are connected to a tube bottom. The tubes are first inserted into the tube support openings in the tube bottom with tube ends flush with a collecting space side of the tube bottom. The tube ends are then welded by a laser beam guided around the circumference of the respective tube ends.

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Japanese Abstract No. 59-50986, vol. 8, No. 154 (M-310 (1591), Jul. 18, 1984.
Welding International, vol. 6, No. 9, 1992, entitled "Practical application of high-power YAG laser welding by optical fibre transmission" by A. Yokoyama et al., pp. 740-745.

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