Control of Springback in Sheet Metal U-bending Through Design Experiment

For the U-bending of sheet metals, springback represents the most important failure mode that is affecting the parts. The purpose of this study was to develop a method for the reduction or the elimination of springback from the designing stage of the forming process. This paper describes a numerical...

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Bibliographic Details
Main Authors: Chirita, Bogdan, Brabie, Gheorghe
Format: Conference Proceeding
Language:English
Subjects:
ACCURACY
ALLOYS
BENDING
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPUTERIZED SIMULATION
DESIGN
FAILURES
FINITE ELEMENT METHOD
MATERIALS WORKING
METALS
OPTIMIZATION
PROCESS CONTROL
SHEETS
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Summary:For the U-bending of sheet metals, springback represents the most important failure mode that is affecting the parts. The purpose of this study was to develop a method for the reduction or the elimination of springback from the designing stage of the forming process. This paper describes a numerical procedure that combines simulation of springback by finite element method with a fractional factorial design and proposes the optimization of the forming parameters and tools geometry for the reduction of springback intensity. At the end of the study we were able to obtain an important improvement of part precision using the parameters predicted by the factorial design.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2740913