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Published in:
2024 | OriginalPaper | Chapter
Influence of Blank Holder Force and Limiting Drawing Ratio on Fracture Height During Cup—Drawing Process of SECC Sheet Metal
Authors : Thi-Bich Mac, Ngoc-Quyet Ly, The-Thanh Luyen
Publisher: Springer Nature Switzerland
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Abstract
This paper analyzes the influence of blank holder force (FBH) and limiting drawing ratio (Mt) when drawing cylindrical parts from electrolytic zinc-coated steel blank (SECC) with a thickness of 0.6 mm. Firstly, initial survey experiments were performed to determine the study limits of the input parameters. Then the influence of the FBH and the Mt on the fracture height (H) is evaluated. When the Mt is fixed and FBH increases from 8 to 12 kN, the H decreases. Meanwhile, if the Mt is fixed and the FBH is increased from 1.94 to 2.09, the H increases, but when continuing to increase the Mt to 2.24, the H decreases. Finally, study the simultaneous influence of the FBH and Mt on the H, and the optimal set of technological parameters to achieve the maximum forming height are FBH = 8 kN and Mt = 2.09.