Hydraulic expansion swaging of tubes in tubesheet
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United States of America Patent
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Jul 8, 1980
Grant Date -
N/A
app pub date -
Sep 5, 1978
filing date -
Sep 5, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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 tube and the bore in which it is being swaged.
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