Home » Posts Tagged "CVN" (Page 2)

Predictive Weld Distortion in Thick Navy Structures

Project Participants: Northrop Grumman Shipbuilding-Newport News Project Start: November 2004 SShipbuilders often use heat addition (flame straightening) to remove the distortion caused by welding. This labor and time intensive method affects product cost and schedule and is a complicated trial-and-error solution method. Experience can reduce the number of iterations to the solution, but the number […]

High Heat Input Welding of Thick HSLA-100 with Reduced Pre-heat

Project Participants: Northrop Grumman Shipbuilding-Newport News Project Start: August 2004 This Northrop Grumman Shipbuilding – Newport News project was performed to determine the feasibility of joining HSLA-100 with 60°F preheat using high heat inputs with both the mechanized pulsed Gas Metal Arc Welding (GMAW-P) and SAW processes. The project was divided into three phases, the […]

Wireless Automated Diagnostic/Prognostics

Project Participants: Northrop Grumman Shipbuilding-Newport News Project Start: July 2004 Automated Diagnostic and Prognostic (ADP) systems can be used as a means both to reduce Preventive Maintenance and to predict when Corrective Maintenance on plant equipment will be required. This involves robust current condition diagnostics and future condition prognostics capabilities. These capabilities are rapidly emerging […]

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