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http://dx.doi.org/10.5228/KSPP.2002.11.5.423

A Study on the Warm Deep Drawabilities of Galvannealed Steel Sheet  

장성호 (성균관대학교 대학원)
서대교 (성균관대학교 기계공학부)
Publication Information
Transactions of Materials Processing / v.11, no.5, 2002 , pp. 423-429 More about this Journal
Abstract
The limiting drawing ratio (LDR) under uniform heating of blanks was measured at the various temperature ranges between 25 and 25$0^{\circ}C$ by using two different blank shapes, square and circular blanks, and six different blank sizes with the drawing ratios(DR) of 2.4 to 2.9. The galvannealed steel sheet (SCP3CM 60/60) of 0.7mm thickness were used. The LDR at warm forming condition reached 1.2 times of that at room temperature, and the maximum drawing depth reached 1.9 times. The higher temperature was adopted, the more stable and uniform thickness strain distribution was observed. Some cases of the experimental results were compared with the analitical results using the commercial finite element method (FEM) code.
Keywords
Warm Deep Drawing; Limiting Drawing Ratio (LDR); Maximum Drawing Depth; Thickness Strain Distribution;
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