Joining metal tubes

Details Joining metal tubes Joining metal tubes

F - Mech Eng,Light,Heat,Weapons

16

L

78/44

F16L 13/14 (2006.01) B21D 39/04 (2006.01) B23K 20/08 (2006.01) E21B 17/04 (2006.01)

Patent

CA 1289391

ABSTRACT "Joining Metal Tubes" A metal tube is expanded by means of an explosive charge into engagement with a surrounding tubular metal member which is supported externally by a surrounding metal die member spaced from the metal member, the intervening space being filled with a shock transmitting liquid such as water. The metal die member is readily separate from the expanded tube and is reusable indefinitely without maintenance. Its use is, therefore, more economical than the split die hitherto used. The method is especially useful for expanding large diameter tubes, for example, expanding oil-well drill pipes into pipe coupling members.

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