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Advanced Gun Barrel Materials and Manufacturing Technology Symposium—Overview and Perspective

The defense community faces a significant challenge as it develops the next-generation cannon for Future Combat System (FCS) forces. The requirement for increased range, muzzle velocity, and penetration capability necessitates the development of propellants with increasing energy. These advanced propellants increase the wear and erosion on gun systems. Both current and future Army weapon systems that employ largeand medium-caliber cannons will benefit from increased barrel life. In all systems, greater lethality can be achieved with higher-performance propellants. These propellants are generally associated with higher flame temperatures and greater erosivity. Current large-caliber 120-mm FCS gun life requirements call for a barrel life of 1500 rounds. Current art affords a life of only 260 rounds. A significant challenge, and opportunity, lies within the armaments community for developing life extension technologies for gun barrels. The 2005 Gun Barrel Materials and Manufacturing Symposium that was held in Maryland followed a previous workshop on gun barrel wear and erosion held under the auspices of the Army Research Laboratory in 1996 at the DuPont Country Club, Wilmington, Delaware. The previous workshop emphasis was on solutions to the wear and erosion problem in both largeand mediumcaliber guns. This involved a greater amount of interior ballistics modeling than in the 2005 symposium. As is usually the case, the implementation of solutions in a manufacturing environment can be as challenging as finding the solutions themselves. Consequently, the scope of the 2005 symposium concentrated on advanced gun materials (primarily coatings and liners) and how to apply them to gun tubes. The modeling that was presented in 2005 dealt primarily with the modeling of manufacturing processes. The challenges that faced the gun community in 1996 have not changed a great deal in the past 10 years. There is still a need for modeling the interior ballistic environment of the gun tube, testing of advanced concepts, and costeffective manufacturing techniques to implement effective solutions to the wear and erosion problem. The proceedings