Taper Tension Logic for Optimization of Residual Stresses in Roll-to-Roll Winding Systems
롤투롤 시스템에서 감김롤 내부 잔류응력 최소화를 위한 테이퍼 장력 설정 기법

Jongsu Lee, Changwoo Lee
2015 Journal of the Korean Society for Precision Engineering  
In a roll-to-roll continuous system, winding is one of the most important processes since it determines the quality of the final manufactured products such as flexible film and printed electronic devices. Since an adequate winding tension can reduce the incidence of the defects that are derived from the inner stress of the wound roll such as starring and telescoping, it is necessary to determine the optimal taper-tension profile. In this study, an algorithm for the setting of an optimal
more » ... an optimal taper-tension profile in consideration of the residual stress in the wound roll is suggested; furthermore, the algorithm was adjusted for the determination of an optimal tapertension profile regarding the winding process of 10 ㎛ polypropylene (PP) film. As a result of the algorithm-generated, optimal taper-tension profile, the residual stress and radial stress in a PP wound roll were decreased to 27.37 % and 40.05 % (mean value), respectively.
doi:10.7736/kspe.2015.32.12.1011 fatcat:wryn4i43e5bwjjaenikjsxuwqq