Inventors:
Benjamin J. Aleck - Jackson Heights NY
Assignee:
Grumman Aerospace Corporation - Bethpage NY
International Classification:
B21D 4104
Abstract:
To reduce the length of a tube thickened by swaging and to provide acceptable efficiency in use of material and vessel length for a high performance pressure vessel, the tube is locally corrugated, then conventionally swaged and subsequently pressurized to remove the corrugations.