Numerical analysis of hydroforming deep drawing of conical cup

J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (01): 131-132.

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Numerical analysis of hydroforming deep drawing of conical cup

Yongming KONG, Xianbin ZHOU, Min LI

Research Center of Sheet Metal Forming, School of Mechanical Engineering & Automation, Beijing University of Aeronautics & Astronautics, Beijing 100083, China

Received:2000-04-25 Revised:1900-01-01 Online:2001-01-28 Published:2009-10-10
Contact: Yongming KONG

Abstract

Abstract: Aided by the FE-code, analysis is carried to find the proper hydroforming deep-drawing condition for the perfect forming of a conical cup that can not be drawn successfully by conventional deep drawing method. Hydraulic counter pressure must be reasonably controlled, otherwise defects such as fracture and wrinkling can not be avoided. Therefore, the forming procedure is divided into three stages, and the counter pressure is adjusted intentionally to make the blank clamped onto the punch at a suitable time, then deformation at dangerous area is resisted by the effect of the counter pressure and the conical cup can be formed without defects.

Key words:

Yongming KONG, Xianbin ZHOU, Min LI. Numerical analysis of hydroforming deep drawing of conical cup[J]. J Mater Sci Technol, 2001, 17(01): 131-132.

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Numerical analysis of hydroforming deep drawing of conical cup

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