NAVSEA Approves First Metal Additively Manufactured Component for Shipboard Use


Story Number: NNS181011-13Release Date: 10/11/2018 3:10:00 PM
A  A  A   Email this story to a friend   Print this story
From Naval Sea Systems Command Office of Corporate Communication Public Affairs

WASHINGTON (NNS) -- Naval Sea Systems Command (NAVSEA) approved the first metal part created by additive manufacturing (AM) for shipboard installation, the command announced Oct. 11.

A prototype drain strainer orifice (DSO) assembly will be installed on USS Harry S. Truman (CVN 75) in fiscal year 2019 for a one-year test and evaluation trial. The DSO assembly is a steam system component that permits drainage/removal of water from a steam line while in use.

Huntington Ingalls Industries – Newport News Shipbuilding (HII-NNS) builds Navy aircraft carriers and proposed installing the prototype on an aircraft carrier for test and evaluation.

“This install marks a significant advancement in the Navy’s ability to make parts on demand and combine NAVSEA’s strategic goal of on-time delivery of ships and submarines while maintaining a culture of affordability,” said Rear Adm. Lorin Selby, NAVSEA chief engineer and deputy commander for ship design, integration, and naval engineering. “By targeting CVN-75 [USS Harry S. Truman], this allows us to get test results faster, so—if successful—we can identify additional uses of additive manufacturing for the fleet.”

The test articles passed functional and environmental testing, which included material, welding, shock, vibration, hydrostatic and operational steam, and will continue to be evaluated while installed within a low temperature and low pressure saturated steam system. After the test and evaluation period, the prototype assembly will be removed for analysis and inspection.

While the Navy has been using additive manufacturing technology for several years, the use of it for metal parts for naval systems is a newer concept and this prototype assembly design, production, and first article testing used traditional mechanical testing to identify requirements and acceptance criteria. Final requirements are still under review.

“Specifications will establish a path for NAVSEA and industry to follow when designing, manufacturing and installing AM components shipboard and will streamline the approval process,” said Dr. Justin Rettaliata, technical warrant holder for additive manufacturing.  “NAVSEA has several efforts underway to develop specifications and standards for more commonly used additive manufacturing processes.”

Naval Sea Systems Command is the largest of the Navy's five systems commands. NAVSEA engineers, builds, buys and maintains the Navy’s ships, submarines and combat systems to meet the fleet's current and future operational requirements.

Get more information about the Navy from U.S. Navy Facebook or Twitter.

For more news from Naval Sea Systems Command, visit www.navy.mil/local/navsea/.

 
RELATED PHOTOS
 This drain strainer orifice system, a prototype, is a steam system component that permits drainage and removal of water from a steam line while in use.
181003-N-N2201-0001 NEWPORT NEWS, Va. (Oct. 3, 2018) This drain strainer orifice system, a prototype, is a steam system component that permits drainage and removal of water from a steam line while in use. A version of this is approved as the first metal part created by additive manufacturing for shipboard installation and will be installed aboard the aircraft carrier USS Harry S. Truman (CVN 75) in fiscal year 2019. (U.S. Navy photo courtesy of Newport News Shipbuilding by Ricky Thompson/Released)
October 12, 2018
Navy Social Media
Sign up for email updates To sign up for updates or to access your subscriber preferences, please click on the envelope icon in the page header above or click Subscribe to Navy News Service.