TY - JOUR
T1 - Effect of blank holder force control in deep-drawing process of magnesium alloy sheet
AU - Yoshihara, Shoichiro
AU - Manabe, Ken Ichi
AU - Nishimura, Hisashi
PY - 2005/12/30
Y1 - 2005/12/30
N2 - A circular cup deep-drawing process was investigated using a magnesium alloy material, which is the lightest practical material for use in manufacturing structural components. An improvement in the limiting drawing ratio (LDR) at 300 °C was observed, by controlling a variable blank holder force (BHF) during the process, in comparison with the constant BHF conditions. The reason for the improvement of the LDR is that the magnesium alloy material has a low F-value, which was obtained from tensile tests when it was warmed to the elevated temperature. When the experimental conditions are not appropriate, such as when BHF is high, the experimentally drawn cup fractured at the wall part (β-rupture). The LDR of the magnesium alloy sheet was improved using the BHF control technique and verified using a finite element method (FEM) simulation. It is confirmed that the FEM simulations behaved in a similar manner to the experiments, with β-rupture being observed during the fracture at the wall part.
AB - A circular cup deep-drawing process was investigated using a magnesium alloy material, which is the lightest practical material for use in manufacturing structural components. An improvement in the limiting drawing ratio (LDR) at 300 °C was observed, by controlling a variable blank holder force (BHF) during the process, in comparison with the constant BHF conditions. The reason for the improvement of the LDR is that the magnesium alloy material has a low F-value, which was obtained from tensile tests when it was warmed to the elevated temperature. When the experimental conditions are not appropriate, such as when BHF is high, the experimentally drawn cup fractured at the wall part (β-rupture). The LDR of the magnesium alloy sheet was improved using the BHF control technique and verified using a finite element method (FEM) simulation. It is confirmed that the FEM simulations behaved in a similar manner to the experiments, with β-rupture being observed during the fracture at the wall part.
KW - Blank holder force control
KW - Deep-drawing
KW - FEM simulation
KW - Magnesium alloy sheet
KW - Sheet metal forming
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U2 - 10.1016/j.jmatprotec.2005.06.028
DO - 10.1016/j.jmatprotec.2005.06.028
M3 - Article
AN - SCOPUS:29244486504
SN - 0924-0136
VL - 170
SP - 579
EP - 585
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
IS - 3
ER -