Study on Characteristics of the Warm Deep Drawability and Simulation for the Galvannealed Steel Sheet
Experimental and numerical studies on the formability of the galvannealed (GA) steel sheet were conducted, employing the warm deep drawing test. Six different temperatures between room temperature and 250 °C, and six different drawing ratios raging from 2.4 to 2.9 were considered for square and circular blanks. The GA steel sheet (SCP3CM 60/60) is one of the surface treated steels having good anticorrosion properties. The maximum drawing ratio (MDR) at warm forming condition reached 1.2 times of that at room temperature, and the maximum drawing depth showed 90% improvement. The more elevated the temperature, the more stable and uniform distribution of through-thickness strain. FEM analysis using the LS-DYNA code was used to compare the experimental results with the numerical results for the thickness strain distribution.
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Document Type: Research Article
Publication date: December 1, 2013
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