TY - GEN
T1 - Effect of loading location of viscous medium on sheet deformation in viscous pressure bulge (VPB) test
AU - Liu, Jianguang
AU - Wang, Zhongjin
AU - Meng, Qingyuan
AU - Zheng, Yulong
PY - 2011
Y1 - 2011
N2 - Viscous pressure forming (VPF) uses a highly viscous but flowable material as pressure-carrying medium (PCM). Due to the relative low flowability of viscous medium compared with fluid, nonuniform pressure distribution in viscous medium can be used to control and regulate the deformation sequence of the workpiece through controlling the loading mode of viscous medium. In the present study, viscous pressure bulge (VPB) tests with three kinds of loading location of viscous medium (central zone, corner zone and the whole deformation zone) are conducted and the influences of loading location of viscous medium on sheet deformation behavior are investigated via numerical simulations and experiments. It is found that changing the loading location of viscous medium can greatly affect the deformation behavior of sheet metal. When the viscous medium is injected from the die corner zone, a local high pressure formed at the corner zone of sheet metal and a higher limiting dome height and strains are obtained.
AB - Viscous pressure forming (VPF) uses a highly viscous but flowable material as pressure-carrying medium (PCM). Due to the relative low flowability of viscous medium compared with fluid, nonuniform pressure distribution in viscous medium can be used to control and regulate the deformation sequence of the workpiece through controlling the loading mode of viscous medium. In the present study, viscous pressure bulge (VPB) tests with three kinds of loading location of viscous medium (central zone, corner zone and the whole deformation zone) are conducted and the influences of loading location of viscous medium on sheet deformation behavior are investigated via numerical simulations and experiments. It is found that changing the loading location of viscous medium can greatly affect the deformation behavior of sheet metal. When the viscous medium is injected from the die corner zone, a local high pressure formed at the corner zone of sheet metal and a higher limiting dome height and strains are obtained.
KW - Loading location
KW - Pressure distribution
KW - Sheet metal
KW - Viscous pressure bulge (VPB)
UR - https://www.scopus.com/pages/publications/78650931734
U2 - 10.4028/www.scientific.net/AMR.154-155.775
DO - 10.4028/www.scientific.net/AMR.154-155.775
M3 - 会议稿件
AN - SCOPUS:78650931734
SN - 9780878492046
T3 - Advanced Materials Research
SP - 775
EP - 780
BT - Materials Processing Technologies
T2 - 2010 International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2010
Y2 - 6 November 2010 through 8 November 2010
ER -