"Advanced Metalworking Solutions for
Naval Systems that Go in Harm's Way"
Newly Developed Welding and Cutting Parameters to Save 4,700 Labor Hours per DDG 1000 Class Ship
Problem / Objective
DDG 1000 Class ships include a non-metallic composite deckhouse that is bolted to steel plates that are welded to the deck. Welding of these plates could potentially overheat the composite material and cause significant damage. The original approved procedure required this welding to be done in very short segments to avoid overheating, which would have been very time consuming and costly for the 20,000 feet of welding needed.
The Navy Metalworking Center initiated a rapid response project with Northrop Grumman Shipbuilding-Gulf Coast, Naval Surface Warfare Center-Carderock Division, and PMS 500 to identify welding and cutting process parameters that would permit welding in long lengths without damaging the composite material. The key elements of these improvements are control of weld speed and a process to improve the accuracy of the cut.
Accomplishment / Payoff
Implementation and Technology Transfer:
For more information, contact:
Dr. Daniel L. Winterscheidt
NMC Senior Program Director