Accession Number : AD0776794

Title :   Limit Analysis of Flow through Conical Converging Dies.

Descriptive Note : Final rept. Feb 72-Aug 73,

Corporate Author : LEHIGH UNIV BETHLEHEM PA DEPT OF METALLURGY AND MATERIALS SCIENCE

Personal Author(s) : Avitzur,Betzalel ; Hahn,Walter C. , Jr. ; Iscovici,Samy

Report Date : OCT 1973

Pagination or Media Count : 46

Abstract : Both upper and lower bound mathematical solutions are presented for axisymmetric flow through conical converging dies. For the upper bound solution, triangular velocity fields have been solved and compared to previously published work on spherical velocity fields. It is found that each type provides a lower solution over a part of the range of process variables. A previously published lower bound solution for axisymmetric flow is refined. (Author)

Descriptors :   *Material forming, Flow, Dies, Extrusion, Drawing(Forming), Mathematical analysis, Metals, Velocity

Subject Categories : Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE