Elastic-Plastic Finite Element Simulation of Bulge Forming Process Using a Variable Cross-Section Solid Bulging Mold

Abstract:

Bulge forming is a novel process aimed at common products including T-branches, cross branches and angle branches. But bulging forming has not applied for two-head abnormity-shaped hollow screw rotor reported in literature. Simulation of the bulging forming of two-head abnormity-shaped hollow screw rotor has not been reported. This paper presents a simulation of the bulge forming process of two-head abnormity-shaped hollow screw rotor using a variable cross-section solid bulging mold. Some conditions including the effect of friction, boundary conditions, contact conditions and the space motion, etc are presented. The mathematical model of three-dimensional finite element analysis has been established. The distribution of generalized plastic strain and general metal flow mode in cross section of two abnormity-shaped hollow screw rotor has been analyzed. It is an effective method for the analysis of other defects and the optimization of process parameters further.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 4405-4408
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.4405
• Online since: February 2011
• Authors: Ke Wang, Zhe Ying Wang, Xing Wei Sun
• Keywords: Bulging Process, Numerical Simulation, Plastic Forming, Two-Head Abnormity-Shaped Hollow Screw Rotor

References

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DOI: 10.1017/cbo9780511470981