SIMULATION OF MULTIPLE PASS THREE ROLLER BENDING

Authors

  • Shakil A Kagzi S. V. National Institute of Technology, Surat, Gujarat-395007, India
  • Harit K Raval S. V. National Institute of Technology, Surat, Gujarat-395007, India

Keywords:

Conical bending, Multiple pass bending, Forces, Radius

Abstract

Three roller bending process is used for the formation of cylindrical and conical shell. Due to bender capacity the required shell dimension cannot be obtained in single pass roller bending. Therefore multiple pass bending is performed. During bending plate is bent to loaded radius. During unloading of plate, the radius of the plate increases due to spring back. Analytical models for estimation of unloaded radius during three roller multiple pass bending process have been reported in literatures. These models are based on the assumptions of constant bend radius to simplify the mathematical formulations. One of the ways to overcome these assumptions is to simulate the process through FEA. In the present work an attempt is made to simulate the multiple pass conical bending in FEA software. The variation in radius of the plate as plate passes through the rollers is noted. The increase in the curvature and the spring back occurring in each pass are seen in the results. The forces are found to increase with each pass during bending operation. The results of final radius were compared with the analytical model available in the literature. Present work may serve as a platform for the research in the estimation of the radius and the forces in multiple pass bending through simulation.

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References

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Published

2017-09-01

How to Cite

[1]
Shakil A Kagzi and Harit K Raval, “SIMULATION OF MULTIPLE PASS THREE ROLLER BENDING”, JME, vol. 12, no. 3, pp. 179–184, Sep. 2017.