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 : MAR 1972

Pagination or Media Count : 104

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, Hill's 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