Forming method using an electromagnetically exploded filament

Details Forming method using an electromagnetically exploded filament Forming method using an electromagnetically exploded filament

1984-01-25

1987-01-13

Jordan, M.

Metal fusion bonding

Process

Using explosive energy

228 25, 29421E, 72 56, B23K 2008

Patent

active

046358404

ABSTRACT:
The invention provides a method for expanding a pipe at a predetermined location therealong by positioning a conductive wire at the required location and rapidly discharging a known electrical charge through the wire to explode, thereby initiating a shock wave of known energy which expands the pipe plastically by a controlled amount. As applied to the repair of a pipe at a normally inaccessible location, a plastically deformable metallic sleeve capable of being cold welded to the pipe is positioned at the required location, and a conductive wire is exploded electromagnetically within the sleeve to expand the sleeve into cold welding relation with the pipe.

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