TY - GEN
T1 - Springback suppression of AZ31 magnesium alloy sheet in draw bending at elevated temperature
AU - Katahira, Takashi
AU - Uemori, Takeshi
AU - Yoshida, Tetsuya
AU - Takiguchi, Michihiro
AU - Naka, Tetsuo
AU - Lawanwong, Komgrit
AU - Yoshida, Fusahito
N1 - Publisher Copyright:
© 2019 Trans Tech Publications Ltd, Switzerland.
PY - 2019
Y1 - 2019
N2 - In recent years, warm forming of magnesium sheets has been investigated by many researchers since the ductility of the sheets becomes considerably higher due to low CRSS (critical resolved shear stress) at high temperatures (e.g., [1]-[3]). In the present research, the springback of AZ31 magnesium sheet was investigated by performing a draw-bending experiment at several temperatures from 20 °C (room temperature) to 200 °C at drawing speeds ranging from 0.01 to 1.0 mm/s. From the experiment, it was found that the springback was remarkably reduced at 200 °C, especially at a low forming speed, since the flow stress was very low under such a forming condition, and furthermore, the stress relaxation effect was dominant. The effects of temperature and forming speed on springback were discussed.
AB - In recent years, warm forming of magnesium sheets has been investigated by many researchers since the ductility of the sheets becomes considerably higher due to low CRSS (critical resolved shear stress) at high temperatures (e.g., [1]-[3]). In the present research, the springback of AZ31 magnesium sheet was investigated by performing a draw-bending experiment at several temperatures from 20 °C (room temperature) to 200 °C at drawing speeds ranging from 0.01 to 1.0 mm/s. From the experiment, it was found that the springback was remarkably reduced at 200 °C, especially at a low forming speed, since the flow stress was very low under such a forming condition, and furthermore, the stress relaxation effect was dominant. The effects of temperature and forming speed on springback were discussed.
KW - AZ31 magnesium sheet
KW - Draw bending
KW - Springback
KW - Warm forming
UR - http://www.scopus.com/inward/record.url?scp=85067869067&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067869067&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.794.127
DO - 10.4028/www.scientific.net/KEM.794.127
M3 - Conference contribution
AN - SCOPUS:85067869067
SN - 9783035713626
T3 - Key Engineering Materials
SP - 127
EP - 132
BT - Advances in Engineering Plasticity and its Application IX
A2 - Yoon, Jeong Whan
A2 - Han, Heung Nam
A2 - Kang, Beom Soo
A2 - Kim, Young-Suk
PB - Trans Tech Publications Ltd
T2 - 14th Asia-Pacific Symposium on Engineering Plasticity and its Applications, AEPA 2018
Y2 - 2 December 2018 through 7 December 2018
ER -