Hydraulic expansion swaging of tubes in tubesheet

Details Hydraulic expansion swaging of tubes in tubesheet Hydraulic expansion swaging of tubes in tubesheet

B - Operations, Transporting

21

D

153/16

B21D 19/00 (2006.01) B21D 39/06 (2006.01) B21D 39/08 (2006.01) B21D 39/20 (2006.01) B21D 41/00 (2006.01)

Patent

CA 1107182

-9- 47,862 ABSTRACT OF THE DISCLOSURE The method of this invention involves abruptly applying a very high pressure pulse to the already pressurized annular space between a hydraulic expansion-swaging mandrel core and the tube being swaged to obtain a practically zero gap, after removal of the pressure, between the cube and the bore in which it is being swaged.

335074

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