NDLI: Shape error prediction and compensation of three-dimensional surface in flexibly-reconfigurable roll forming

Content Provider	Springer Nature Link
Author	Liu, Pan Ku, Tae Wan Kang, Beom Soo
Copyright Year	2015
Abstract	The Flexibly-reconfigurable roll forming (FRRF) scheme as one of the advanced continuous roll forming processes consists of upper and lower flexible rollers that can be controlled by each reconfigurable punch module. The shape error in the FRRF process often results in undesirable changes in the shape of the deformed surface and brings about a deviation in the precision of the deformed product. This study considers the changes in the shape error of a deformed configuration by controlling the non-uniform gap between both flexible rollers in the transverse direction. A Non-uniform rational B-spline (NURBS) type control methodology is introduced based on the transverse target curve and the thickness reduction ratio. The function for the transverse target curve is reconstructed by using a NURBS curve, and the function of the reduction ratios of the thickness is assumed to have linear increments. Finite element simulations are conducted for the FRRF process with the AA5052-H32 sheet material by applying NURBS-type control methodology for both flexible rollers. The transverse shape error of the three-dimensional surface is predicted by using a numerical approach, and its results are experimentally verified. A Reverse displacement compensation (RDC) method is adopted to compensate the transverse shape error of the deformed surface. Consequently, the proposed RDC method is validated as a suitable approach to address the transverse shape error. This method contributes to further developing capabilities to modify the profiles of the upper and lower flexible rollers in the flexibly-reconfigurable roll forming process for various 3D surface parts.
Starting Page	4387
Ending Page	4397
Page Count	11
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	29
Issue Number	10
e-ISSN	19763824
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	2015-10-15
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Flexibly-reconfigurable roll forming process Shape error prediction Reverse displacement compensation method Thickness reduction ratio Three-dimensional surface part Mechanical Engineering Vibration, Dynamical Systems, Control Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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