Evaluation of the Tooling Design for the Production of Large Diameter - Thin Wall Tubular Shapes. by Hydrostatic Extrusion.
Final rept. on Phase 2B,
NAVAL ORDNANCE STATION LOUISVILLE KY
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A multi-phase program was initiated for the development of a prototype-production process for manufacturing large diameter, thin-walled tubular ordnance items by hydrostatic extrusion. The ASROC missile case was selected as a component representative of such naval ordnance items. The full-scale tooling design concepts developed in Phase IIa were modified and adapted to fit in Battelles deven-inch bore hydrostatic extrusion container. The tooling design was then evaluated by extruding approximately half-scale cases from 6061 aluminum, AISI 1015 and AISI 4135 steel. Evaluation of the extruded products indicated that the dimensional requirements of the full-size ASROC could be achieved by hydrostatic extrusion. An economic analysis indicated that the estimated production cost for a full-size ASROC motor case could be reduced as much as 18, based on quantities of 500, to 24, based on quantities of 10,000, if produced by hydrostatic extrusion instead of shear forming. Author Protions of this document are not fully legible.
- Fabrication Metallurgy
- Machinery and Tools
- Rocket Engines