Gun Liner Emplacement

The development of a process to emplace a refractory metal liner inside a gun tube is described. The process consists of filling the liner with an elastomeric material and then slipping this arrangement into the gun tube. The ends of the liner are plugged with plastic disks and pressure is applied to the elastomeric material by a load frame. Plastic deformation of the gun tube results in residual radial stresses that induce a frictional bond between the liner and gun tube. Efforts are described to increase the bond strength through increasing the coefficient of friction.