Explosively operated welding cartridge

Claim 2

An explosion welding cartridge for joining metallic components, which comprises: a hollow receptacle substantially symmetrical about its axis, said hollow receptacle consisting of a pair of parts which fit together, each of said parts including an inner annular wall and an outer annular wall which define an annular space therebetween, said inner annular wall defining a central aperture; an explosive charge arranged within said annular space in said receptacle in the form of a closed ring; a connecting element extending through said central aperture and including recesses at opposite ends thereof for receiving the metallic components to be connected, each recess comprising a first axial opening extending inwardly from the respective end of said connecting element and a second axial opening of smaller cross section than said first axial opening extending inwardly from said first axial opening and terminating in a reduced section to limit inward movement of the metallic components into said connecting element; and means for detonating said explosive charge to join said connecting element to the metallic components.

Claim 3

The explosion welding cartridge of claim 1, wherein said receptacle consists of a pair of substantially identical parts.

Claim 4

The explosion welding cartridge of claim 2, wherein said parts are glued together.

Claim 5

The explosion welding cartridge of claim 2, wherein said explosive charge is arranged symmetrically about the axis of said receptacle.

Claim 6

The explosion welding cartridge of claim 2, said detonation cord is arranged within said ignition case in one or more coils which surround said connecting element.

Claim 7

The explosion welding cartridge of claim 1, wherein said receptacle is composed of evaporable material.

Claim 8

The explosion welding cartridge of claim 1 wherein said detonating means comprises: an ignition case attached to said receptacle for receiving a detonation cord.

Claim 9

The explosion welding cartridge of claim 1, wherein said detonating meanS comprises a detonation cord provided with an explosive having a disruptive power exceeding the disruptive power of said explosive charge.

Claim 10

The explosive welding cartridge of claim 8, wherein said detonation cord is provided with an explosive having a disruptive power approximately four times greater than the disruptive power of said explosive charge.

Claim 11

The explosion welding cartridge of claim 1, which includes retaining means located at opposite ends of said receptacle for holding the metallic components to be inserted into said connecting element.

Claim 12

The explosion welding cartridge of claim 10, wherein said retaining means comprises retaining discs located at opposite ends of said receptacle, each retaining disc being provided with a central aperture for receiving the corresponding metallic component inserted into said connecting element and including teeth extending inwardly into its central aperture to engage and hold the metallic component in said connecting element.

Claim 13

The explosion welding cartridge of claim 1, which includes: removable tabs located at opposite ends of said receptacle for covering said recesses in said connecting element to protect said connecting element against corrosion.

Claim 14

The explosion welding cartridge of claim 1, wherein said explosive charge is arranged in the form of a hollow cone.

Claim 15

An explosively operated welding cartridge for joining metallic components, which comprises: a hollow receptacle substantially symmetrical about its axis; an explosive charge arranged within said receptacle in the form of a closed ring to provide a central aperture; a connecting element extending through said central aperture and including recesses at opposite ends thereof for receiving the metallic components to be connected, each recess comprising a first axial opening extending inwardly from the respective end of said connecting element and a second axial opening of smaller cross-section than said first axial opening extending inwardly from said first axial opening and terminating in a reduced section to limit inward movement of the metallic component into said connecting element; and means for detonating said explosive charge to join said connecting element to the metallic component, said detonating means comprising an ignition case attached to said receptacle and provided with at least one groove for receiving a detonation cord, said groove being oriented at an angle equal to or less than 90* with respect to the axis of said receptacle.

Claim 16

An explosively operated welding cartridge for joining metallic components, which comprises: a hollow receptacle substantially symmetrical about its axis; an explosive charge arranged within said receptacle in the form of a closed ring to provide a central aperture; a connecting element extending through said central aperture and including recesses at opposite ends thereof for receiving the metallic components to be connected, each recess comprising a first axial opening extending inwardly from the respective end of said connecting element and a second axial opening of smaller cross-section than said first axial opening extending inwardly from said first axial opening and terminating in a reduced section to limit inward movement of the metallic component into said connecting element; and means for detonating said explosive charge to join said connecting element to the metallic component, said detonating means comprising an ignition case attached to said receptacle and provided with at least one groove for receiving a detonation cord, said groove being oriented at an angle equal to or less than 90* with respect to the axis of said receptacle.

Claim 17

The explosively operated welding cartridge of claim 14, wherein said ignition case comprises: a pair of mating case parts surrounding said receptacle, each part including an annular portion provided with a recess which mates with the recess of the annular portion of the other part to define said groove and an elongated portion extending laterally from the annular portion which mates with the elongated portion of the other part; and a fastening element surrounding said elongated portions of said case parts to hold said case parts together.

Claim 18

The explosively operated welding cartridge of claim 15, wherein said elongated portions of said ignition case parts are bent at the extended ends thereof to position the ignition cap askew with respect to the axis of said receptacle.

Claim 19

The explosively operated welding cartridge of claim 14, wherein said ignition case is provided with a pair of grooves which diverge with respect to a central plane through the receptacle for receiving the detonation cord.

Claim 20

The explosively operated welding cartridge of claim 17, wherein said pair of grooves diverge at an angle between 0* and 80*.