0
RESEARCH PAPERS

Influence of Flow Stress and Friction Upon Metal Flow in Upset Forging of Rings and Cylinders

[+] Author and Article Information
C. H. Lee

Mechanical Design Division, University of California, Berkeley, Calif.

T. Altan

Metalworking Division, Battelle Columbus Laboratories, Columbus, Ohio

J. Eng. Ind 94(3), 775-782 (Aug 01, 1972) (8 pages) doi:10.1115/1.3428250 History: Received June 22, 1971; Online July 15, 2010

Abstract

An upper-bound velocity field that considers bulging has been applied to cylinder and ring upsetting. Computer programs have been developed to (a) determine strain, strain rate, velocity, and flow-stress distributions, and (b) predict load and bulge profile at various reductions by simulating the upsetting process. The calibration curve for a 6:3:2 ring, the load-displacement curves for ring and cylinder upsetting, and flow stress from the ring test have been predicted. The experimental results, with annealed 1100 Aluminum samples, agree well with theory at the lower and practical range of friction, but they show some disagreement at high friction.

Copyright © 1972 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In