Large Container End Plate Stretch Forming Technology

Abstract:

End plate of some large container is of non-conventional type and rather large size, which is difficult to be formed. To choose fit technology parameters and mould structure, stress is analyzed and bending of shallow stretch forming rule is obeyed. Technology of large container end plate stretch forming in 500 tons oil hydraulic press is researched and one mould manufacturing method is given fit for shallow stretch forming. In this technology, to form convex bottom and improve strength, material-pressure plate is not adopted. To reduce wrinkle and stretch force, 30 degree cone of cavity die is selected. To reduce bending deformation and destabilization, round radius of male punch is 8 millimeters.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 1850-1853
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.1850
• Online since: June 2014
• Authors: Kun Li Mao*
• Keywords: End Plate, Material-Pressure Plate, Mould, Oil Hydraulic Press, Stretch Forming

References

[1] Xiaopei Wang: Punching Design Data (China Machine Press, Beijing 1984) (in Chinese).

[2] Mingxiang Chen: Elastic and Plastic Mechanics (Science Press, Beijing 2010) (in Chinese).

[3] Jianhe Chen: Mould Design Foundation (China Machine Press, Beijing 2009) (in Chinese).

[4] Xueya Ren: Die and Mould Industry Vol. 11 (2000), p.20 (in Chinese).

[5] Kunli Mao: Advanced Materials Research Vols. 889-890 (2014), p.148.