ANALYTICAL PREDICTION OF DEFECTS FOR EXTRUSION THROUGH CONICAL DIES OF VARYING REDUCTIONS AND DIE ANGLES.

Abstract

The principal aim during the first year of investigation was to develop a theoretical method of analysis for obtaining the detailed mechanics of the extrusion process, with special reference to extrusion through conical dies. The visioplasticity and upper-bound methods were summarized, and the method of calculating temperature distributions was reviewed. Extended treatment of admissible velocity fields was then made, and a numerical method was developed for predicting the non-steady-state temperature distributions. A computer program of the entire procedure was completed for general use. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1966
Accession Number
AD0641257

Entities

People

  • Shiro Kobayashi
  • Taylan Altan

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Extrusion
  • Fluid Mechanics
  • Fluid Statics
  • Mechanics
  • Physics
  • Statics
  • Steady State
  • Stratified Fluids

Readers

  • Calculus or Mathematical Analysis
  • Combustion and Flow Dynamics.
  • Metallurgy