Accession Number:

AD0744848

Title:

Study of Deformation and Defects Occurrence in Advanced Forging Techniques.

Descriptive Note:

Technical rept. Jan-Sep 71,

Corporate Author:

CALIFORNIA UNIV BERKELEY

Personal Author(s):

• Kobayaski,Shiro
• Lee,C. H.
• Sohrabpur,S.
• Kanacri,F.
• Beck,L. R.

Report Date:

1972-03-01

Pagination or Media Count:

104.0

Abstract:

The report consists of two parts. In the first part, the detailed mechanics of flat-punch indentation into specimens of finite dimensions under plane-strain conditions were obtained, based on the observed flow patterns of commercially pure, hard copper specimens. In the second part, Hills analysis for compression of a long rectangular strip was modified so that the analysis is applicable to compression of a rectangular block having any length-width ratio. The predictions were compared with experimental results obtained with annealed pure aluminum in terms of load-displacement relationships, changes in specimen geometry, flow lines and grid distortions. Also, a comparison was made for the load-displacement curves by the modified analysis and by the sand-heap analogy. Author

Descriptors:

• (*FORGING
• MECHANICS)
• DEFORMATION
• STRAIN(MECHANICS)
• FRACTURE(MECHANICS)
• ALUMINUM ALLOYS
• RECTANGULAR BODIES
• COPPER

Subject Categories:

• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE