NDLI: Shape error compensation in flexible forming process using overbending surface method

Content Provider	Springer Nature Link
Author	Heo, Seong Chan Kim, Jae Nam Song, Woo Jin Ku, Tae Wan Kang, Beom Soo
Copyright Year	2011
Abstract	In this article, the design of the flexible forming process considering die shape compensation using an iterative overbending method based on numerical simulation is carried out. In this method, the springback shape obtained from the final step of the first forming simulation is compared with the desired objective shape, and the shape error is calculated as a vector norm with three-dimensional coordinates. The error vector is inversely added to the objective surface to compensate both the upper and lower flexible die configuration. The flexible dies are made up of several punches that make a forming die that is equivalent to a solid die, thus the forming surface shape can be reconfigurable with regard to the compensated die shapes. The flexible die shapes are recalculated, and the punch arrays are adjusted according to the overbent forming surface. These iterative procedures are repeated until the shape error variation converges. In addition, experimental verification is carried out using a 2,000-kN flexible forming apparatus for thick plates. Finally, the configuration of the prototype obtained from the experiment is compared with the numerical simulation results, which have consideration of the springback compensation. Consequently, it is confirmed that the suggested method for compensating the forming error could be used in the design of the flexible forming process for thick-curved plates.
Starting Page	915
Ending Page	928
Page Count	14
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	59
Issue Number	9-12
e-ISSN	14333015
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-08-20
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Flexible forming Flexible die Springback compensation Iterative overbending method Thick-curved plate forming Mechanical Engineering Industrial and Production Engineering Computer-Aided Engineering (CAD, CAE) and Design Production/Logistics/Supply Chain
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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