Accession Number:

AD0274372

Title:

INVESTIGATION OF HYDROSTATIC EXTRUSION

Descriptive Note:

Corporate Author:

BATTELLE MEMORIAL INST COLUMBUS OHIO

Report Date:

1962-04-01

Pagination or Media Count:

1.0

Abstract:

THE DESIGN OF TOOLING FOR HYDROSTATIC EXTRUSION OF SAE 4340 steel and Ti-6Al-4V Ti alloys was completed and fabrication of the components is under way. The tooling is required to withstand a target pressure of 250,000 psi at temperatures to 500 F. The goal is to extrude T-sections which can be inscribed in a 1-in. circle. Stress analysis of the tooling design indicated that extremely high shear stresses would be imposed on the liner and sleeve rings of the container assembly under the target conditions. This is the case even though the maximum shrink fits possible are to be used between the containerassembly rings. The high shear stresses on the liner bore, for example, indicated the need for tool steels with minimum yield strengths in the order of 300,000 psi at 500 F. In spite of these severe limitations, it appears from the stress analysis results that the tooling will be able to withstand the target pressure at room temperature. and possibly up to 500 F. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE