Raymond J Weimer

US Patent:

44636784, Aug 7, 1984

Filed:

Apr 1, 1980

Appl. No.:

6/132463

Inventors:

Raymond J. Weimer - Burke VA
Chulho Kim - Alexandria VA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F42B 102

US Classification:

102307

Abstract:

This invention is directed to the construction of armor-piercing projecti which combine the enhanced kinetic energy penetration due to metal matrix composite materials with that of a shaped-charge jet to defeat armor not vulnerable to either weapon alone.

US Patent:

44412371, Apr 10, 1984

Filed:

Apr 1, 1980

Appl. No.:

6/132462

Inventors:

Chulho Kim - Alexandria VA
Raymond J. Weimer - Burke VA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B21K 2106

US Classification:

29 12

Abstract:

This invention is directed to a method of fabricating kinetic-energy projiles from composite materials in such a manner that the type and degree of local inhomogeneity and anisotropy is controlled for tailoring the mechanical and physical properties of the projectile for different applications. A continuous rod of composite material is fed into a machine having a stationary holder or gripper and a rotatable holder or gripper which grips the rod. An induction heater heats a particular zone of the rod between the holders. Once the rod zone has been heated, the rotatable holder is rotated through a particular predetermined angular twist about the longitudinal axis, thereby applying a torque on the rod which causes the rod to deform in the heated zone. Depending upon the heated zone length, projectile noses in near-final shapes ranging from rather blunt hemispheres to sharp ogives can be formed. Subsequent to twisting, the rod is released and advanced a sufficient length to form two projectile lengths between the shaped ends.