Accession Number:

AD0770205

Title:

Workability Theory of Materials in Plastic Deformation Processes.

Descriptive Note:

Technical rept. 22 Jun 72-15 Apr 73,

Corporate Author:

CALIFORNIA UNIV BERKELEY DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Kobayashi,Shiro
• Lee,C. H.
• Oh,S. I.

Report Date:

1973-05-01

Pagination or Media Count:

98.0

Abstract:

The investigation is aimed at establishing a workability criteria in upsetting and rolling with reference to occurrence of free surface cracks. A review of the background on workability is given, indicating the need for methods of analysis which provide the required information on the mechanics in metal-working processes. The development of such a method is described. With this method, the workability criterion of SAE 1040 steel in upsetting, based on the observed fracture condition, is described. Although workability in rolling was not examined in this investigation, it appears possible by the developed theory to construct a workability criterion also in rolling. Author

Descriptors:

• *MECHANICAL WORKING
• *STEEL
• PLASTIC DEFORMATION
• REASONING
• TOUGHNESS
• EXTRUSION
• ROLL

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE