Apparatus for forming an explosively expanded tube-tube sheet jo

Details Apparatus for forming an explosively expanded tube-tube sheet jo Apparatus for forming an explosively expanded tube-tube sheet jo

1982-11-19

1985-01-22

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

By kinetic energy of fluid or field

29421E, B21D 2602

Patent

active

044943920

ABSTRACT:
Apparatus for expanding a tube into a bore formed in tube sheet in which a primary explosive containing a relatively high number of grains of explosive per unit length extends within the tube coextensive with that portion of the tube to be expanded. An energy transfer cord extends between a detonator and the primary explosive and includes a relatively low number of grains of explosive per unit length which are insufficient to detonate the primary explosive but which be covered by a sheath to contain the debris and gases associated with the explosion of the latter explosive. A booster extends between the energy transfer cord and the primary explosive and contains an explosive which is detonatable by the energy transfer cord and, upon exploding, detonates the primary explosive.

REFERENCES:
patent: 3672035 (1972-06-01), Lieberman
patent: 3893395 (1975-07-01), Kilmer

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