Theoretical, Numerical and Experimental Analysis of Tube-Hydroforming in Triangular Die

Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ISME20_641

تاریخ نمایه سازی: 18 تیر 1391

Abstract:

A major parameter that affects dimensional accuracy of a tube-hydroformed part is formation of an edge corner with a desired radius. In addition, required forming pressure produce the desired part is a function of outer corner radius of formed tube. In this paper, the forming pressure is investigated with a theoretical model, a finite-element model and an experimental set-up. To reach this goal, first a theoretical method has beenpresented to obtain forming pressure, the corner radius and initial thickness of the part effect. Then, using ABAQUS/explicit the 3D finite-element model of the forming process has been analyzed. In finite-element model, the effect of forming pressure on the corner radius was obtained for different values of pressure. In order to validate results of models, an experimental investigation has been done using a triangular die. The predicted results calculated by both the theoretical model and the finite-element simulation were found to agree well with those obtained from experimentalanalysis.

Authors

M Jelokhani

Master Student, Mechanical Engineering Department, University of Tehran

M.K Besharati

Associate Professor, Mechanical Engineering Department, University of Tehran

M.M Mashhadi

Professor, Mechanical Engineering Department, University of Tehran

A Azizi

Master Student, Mechanical Engineering Department, University of Tehran