V-Shape Part Bending Process Realized in Tool with Elastic Elements

Abstract:

A simultaneous process of bending and correction of V-shape workpiece to get 90 ̊ with usage of elastic element in combined tool is represented. During banding a plastic deformation process accompanied with elastic deformation inside workpiece takes place that turn to reflexing after stress load is finished (reflexing - changing of received geometric parameters of workpiece). That influence on radius and banding angle accuracy of a workpiece. Elastic elements, produced from spring steel and placed on die and piston are used to correct geometry during final stage of bending due to happened inside them elastic stresses. A banding-correcting of 90 ̊ V-shape workpiece with usage of elastic elements model technique was implemented. Model technique discover positive influence of elastic elements: reflex angle value decreases 5-8 times, workpiece has correct strain-stress condition, correct geometry and minimum dimension deviation.

• Periodical: Key Engineering Materials (Volume 746)
• Pages: 84-91
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.746.84
• Online since: July 2017
• Authors: Elena Nesterenko*
• Keywords: Bending, Correction, Elastic Element, Model Technique, Reflex Angel, Sheet-Metal Forming, Strain, Stress

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