In the press

GDLS “Fredserts” provide new twist on threaded insertsIn response to a changing global combat environment, today’s defense industry is transitioning in many cases to aluminum structures; leveraging weight savings that provide soldiers with agile vehicles with which to execute their mission. While aluminum provides substantial weight savings over steel, it’s also much softer than steel, leading to the use of stainless steel or titanium “threaded inserts”. Threaded inserts serve as a wear-resistant interface between the aluminum structure and the hardened steel bolts used to attach components to the structure.

Fredsert Provide New Twist on Threaded InsertsThe Fredsert is a threaded insert patented by the General Dynamics Corporation in 2001. Engineer Fred Wheeler initially designed these inserts for the Expeditionary Fighting Vehicle (EFV). Wheeler designed the product to meet the unique demands of the EFV program, including: a watertight seal, solid locking to prevent back-out, corrosion resistance in extended saltwater exposure, and the ability to be easily removed and replaced in the field. The Fredsert has simplified vehicle design, improved producibility, and reduced program logistical costs. Today, there are nearly 4,000 Fredserts incorporated in each EFV, and the use of Fredserts has expanded to a number of other applications.
Fully Automated Threaded Insert InstallationFully-automated threaded-insert installation could dramatically change the way aluminum components and structures are assembled in aerospace, defense, automotive, and other industries.
Fully automated threaded insert installation significantly improves high-volume fabrication of assemblies produced from aluminum, magnesium, and more. In addition to the superior strength, sealing capability, and customization that Fredserts offer, the ability to fully automate installation also reduces overall process time and cost.
A Threaded Insert Tough Enough For The MarinesEngineers at General Dynamics Land Systems, Sterling Heights, Mich., faced a challenge when designing the Expeditionary Fighting Vehicle for the U. S. Marine Corps. The amphibious combat craft needed to be made mostly of a lightweight aluminum alloy so that it would meet its mission objectives. But aluminum is relatively soft, and fasteners used to attach components to the aluminum frame needed to satisfy several requirements. They had to be lightweight, create watertight seals, lock in place solidly, resist extreme vibrations and shock, and withstand extended exposure to saltwater. The Marines also wanted be able to remove and replace the fasteners in the field.