DESIGN, DEVELOPMENT, AND FABRICATION OF PROJECTILE METAL PARTS FOR CARTRIDGE, HE, 152-MM, XM657E1.
Final summary rept. 1 Mar-31 Dec 67,
CHAMBERLAIN MFG CORP WATERLOO IOWA ORDNANCE ENGINEERING DIV
Pagination or Media Count:
This report describes the design, development, and fabrication of projectile metal parts for the Cartridge, He, 152-mm, XM657E1. All projectiles were fabricated from AISI 4340 steel by hot forge-cold draw forming methods. Major problems in forming the projectile nose were solved by external contour machining and annealing of the drawn cans, then nosing the parts while cold in one operation. Annealing of the projectile immediately after nosing was found necessary to avoid cracking. Weight control problems were solved by close control of the ogive wall thickness and relaxing the tolerance on the bourrelet relief diameter. Author
- Fabrication Metallurgy
- Ammunition and Explosives