TY - GEN
T1 - Automatic Extraction and Conversion of the Bending Line from Parametric and Discrete Data for the Free-Form Bending Process
AU - Scandola, Lorenzo
AU - Maier, Daniel
AU - Konrad Werner, Matthias
AU - Hartmann, Christoph
AU - Volk, Wolfram
N1 - Publisher Copyright:
© 2022, The Minerals, Metals & Materials Society.
PY - 2022
Y1 - 2022
N2 - The free-form bending process is particularly suited for small-batch components of arbitrary three-dimensional shape. Nevertheless, the target geometry is usually input as a discrete set of bending instructions. The derivation of every bending operation from the CAD file is a complex task and can result in a cumbersome decomposition process. On the other hand, a list of sequential bending operations only contains information for each individual bent. In this contribution, an automated tool for turning parametric CAD data into bending instructions and vice versa is proposed. Regardless of the input type, the target bending line is computed as a NURBS curve, which can in turn be exported as a CAD file or bending table. The tool is validated by two case studies processing, respectively, a discrete and parametric bending line description. Finally, the outcome of the presented strategy is demonstrated by performing a surface-to-surface comparison between the target CAD component and the obtained bent part.
AB - The free-form bending process is particularly suited for small-batch components of arbitrary three-dimensional shape. Nevertheless, the target geometry is usually input as a discrete set of bending instructions. The derivation of every bending operation from the CAD file is a complex task and can result in a cumbersome decomposition process. On the other hand, a list of sequential bending operations only contains information for each individual bent. In this contribution, an automated tool for turning parametric CAD data into bending instructions and vice versa is proposed. Regardless of the input type, the target bending line is computed as a NURBS curve, which can in turn be exported as a CAD file or bending table. The tool is validated by two case studies processing, respectively, a discrete and parametric bending line description. Finally, the outcome of the presented strategy is demonstrated by performing a surface-to-surface comparison between the target CAD component and the obtained bent part.
KW - Dimensional accuracy
KW - Free-form bending
KW - Metal forming
KW - NURBS reconstruction
UR - http://www.scopus.com/inward/record.url?scp=85134288634&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-06212-4_73
DO - 10.1007/978-3-031-06212-4_73
M3 - Conference contribution
AN - SCOPUS:85134288634
SN - 9783031062117
T3 - Minerals, Metals and Materials Series
SP - 813
EP - 826
BT - NUMISHEET 2022 - Proceedings of the 12th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes
A2 - Inal, Kaan
A2 - Worswick, Michael
A2 - Butcher, Cliff
A2 - Levesque, Julie
PB - Springer Science and Business Media Deutschland GmbH
T2 - 12th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2022
Y2 - 10 July 2022 through 14 July 2022
ER -