Title: Influence of a single bend in the bumping process of large radius air bending
Authors: Vorkov, Vitalii ×
Aerens, Richard
Vandepitte, Dirk
Duflou, Joost #
Issue Date: 4-Feb-2015
Publisher: Trans Tech Publications
Host Document: Key Engineering Materials vol:651-653 pages:1090-1095
Conference: ESAFORM 2015 location:Graz, Austria date:15-17 April 2015
Abstract: Bump bending or step bending is a forming technique that allows making large radius bends in a sheet metal part by means of a series of bends performed close to each other. The bump bending process has been studied by means of both an experimental campaign and finite element analysis. High-strength steel Weldox 1300 and a punch of radius 30 mm have been used. The finite element calculations have been performed with Abaqus using the solid formulation and Implicit/Explicit solvers. The results of the finite element analysis have been validated experimentally by monitoring the bending process using a camera system aligned with the bending line. Experiments were performed on a press-brake with a capacity of 50 metric tons. Deflections of a sheet during and after bending have been measured using the images recorded by the camera. In order to investigate the influence of a new bend on a previously formed bend, experiments have been performed with different distances between two consecutive bends. Based on the experiments, the size of the affected zone for the bend has been measured. The dependence of the distance between two consecutive bends on the resulting global bending angle has been studied. Moreover, the influence of the bump distance on the springback has been investigated.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
Vorkov et al. - 2015 - Influence of a single bend in the bumping process of large radius air bending.pdf Published 1227KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.