Submarine Manufacturing & Products Limited

Speciality Welds have developed solutions to the long-standing problems associated with underwater wet welding and in particular the skills required to produce high quality welds. The new system, which has been named Hammerhead in keeping with the company's branded 'fish' names answers the problems to obtaining high quality wet welds, without the need for experienced, trained and or qualified welder-divers.

This welding system will enable diving contractors, who might normally pass on welding projects to rethink their policy. The Hammerhead wet-spot welding process results in a quick and reliable joining method by means of a spot/plug weld, using a standard 3 phase DC welding power source and our new Piranha II control unit.

In removing the skills necessary to carry out underwater wet welding you must change the fundamental approach to how welding is carried out. The benefits include, no need for specific joint configurations and all the preparation that goes with them. No need even for a conventional fillet or butt welds for that matter. No need for cleaning the joint area or for chipping of meters of slag before laying down additional passes, in fact there's no need for additional passes, as the process is a one-shot process. i.e. one electrode produces one complete spot/plug weld.