Patent ID: 8047036

Claim:
A device for explosive forming of a tubular work piece, comprising: a multipart forming die ( 1 ) that is operable between an opened state and a closed state, the forming die ( 1 ) when in the closed state defining a forming area ( 7 ) for forming a final shape of the tubular work piece and defining a nozzle arrangement ( 6 ) adjacent to the forming area ( 7 ), the tubular work piece being substantially enclosed when the forming die ( 1 ) is in the closed state; and, a plug ( 10 ) for forming a seal with a facing surface of the nozzle arrangement ( 6 ) when the forming die ( 1 ) is in the closed state, wherein when the plug ( 10 ) is inserted and the forming die ( 1 ) is in the closed state, an end of the work piece is deformed and is clamped between the plug ( 10 ) and the nozzle arrangement ( 6 ), thereby forming the seal between the nozzle arrangement ( 6 ) and the plug ( 10 ), and wherein the plug ( 10 ) supports fluid communication between an explosion space in the interior of the forming die ( 1 ) and at least one of a gas feed device, a venting device, and an ignition device.