Explosive tube expansion

Details Explosive tube expansion Explosive tube expansion

B - Operations, Transporting

21

D

153/17

B21D 19/00 (2006.01) B21D 39/06 (2006.01) B21D 41/00 (2006.01)

Patent

CA 1193528

EXPLOSIVE TUBE EXPANSION ABSTRACT OF THE DISCLOSURE Apparatus for expanding a tube within a tube sheet has an insert anda detonation device. The insert is sized to fit coaxially within the tube. The detonation device encir- cles the insert and can produce upon detonation an explosive force. Also included is an annular buffer sized to fit be- tween the tube and the detonation device. In operation, the tube is inserted into a tube hole of the tube sheet. The in- sert is coaxially positioned within the tube and within the tube hole. The insert is overlayed with an explosive layer and the buffer is interposed between the explosive layer and the tube. The tube is joined to the tube sheet by detonating the explosive layer.

414082

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