Abstract
In order to manufacture three dimensional sheet metal parts for small-quantity batch production, several flexible forming technologies, including multi-point forming (MPF), have been made as alternatives to the conventional die forming one. However, the existing alternatives cause defects like dimples and wrinkles on the sheet metal during forming, due to their discrete punches. Long setup time and additional post-processing, like machining, of the products limits the feasibility of these technologies. The alternative processes may not be suitable for a skin structure in the aerospace industry, which requires precision machining. To alleviate these limitations, a new sheet metal forming process, named flexibly-reconfigurable roll forming (FRRF) process is proposed. This innovative technology utilizes adjustable punches mounted on two reconfigurable rollers. The shape of the reconfigurable rollers is maneuvered by the adjustable punches. Additional privilege of this innovation is that the blank size is unrestricted in its longitudinal direction. In this paper, the method and procedures of the FRRF process are presented. The feasibility of this FRRF process is demonstrated by finite element simulations of various shapes of convex, saddle, and twist-type surfaces which are typical to multicurved shapes used in sheet metal forming.
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References
Kuo, H. C. and Wu, L. J., “Automation of Heat Bending in Shipbuilding,” Computers in Industry, Vol. 48, No. 2, pp. 127–142, 2002.
Jang, C. D., Moon, S. C., and Ko, D. E., “Acquisition of line Heating Information for Automatic Plate Forming,” Proc. of Ship Structures Committee Symposium, pp. 1–6, 2000.
Olsen, B. A., “Die Forming of Sheet Metal using Discrete Surface,” Ms.C. Thesis, Dept. of Mechanical Engineering, Massachusetts Institute of Technology, 1980.
Zhang, Q., Dean, T. A., and Wang, Z. R., “Numerical Simulation of Deformation in Multi-Point Sandwich Forming,” International Journal of Machine Tools and Manufacture, Vol. 46, No. 7, pp. 699–707, 2006.
Li, M., Liu, Y., Su, S., and Li, G., “Multi-Point Forming: a Flexible Manufacturing Method for a 3-D Surface Sheet,” Journal of Materials Processing Technology, Vol. 87, No. 1, pp. 277–280, 1999.
Li, M. Z., Cai, Z. Y., Sui, Z., and Yan, Q. G., “Multi-Point Forming Technology for Sheet Metal,” Journal of Materials Processing Technology, Vol. 129, No. 1, pp. 333–338, 2002.
Yoon, S. J. and Yang, D. Y., “Development of a Highly Flexible Incremental Roll Forming Process for the Manufacture of a Doubly Curved Sheet Metal,” CIRP Annals-Manufacturing Technology, Vol. 52, No. 1, pp. 201–204, 2003.
Shim, D. S., Yang, D. Y., Kim, K. H., Han, M. S., and Chung, S. W., “Numerical and Experimental Investigation into Cold Incremental Rolling of Doubly Curved Plates for Process Design of a New LARS (Line Array Roll Set) Rolling Process,” CIRP Annals-Manufacturing Technology, Vol. 58, No. 1, pp. 239–242, 2009.
Hong, Y. S., Lim, S. H., and Park, J. W., “Dieless Forming Apparatus,” US Patent, No. US6151938A, 2000.
Seo, Y. J., Heo, S. C., Ku, T. W., Kim, J., and Kang, B. S., “Numerical Analysis for Stretch Forming Process Using Flexible Die,” Steel Research International, Vol. 81, No. 5, pp. 954–957, 2010.
Heo, S. C., Seo, Y. H., Park, J. W., Ku, T. W., Kim, J., and Kang, B. S., “Application of Flexible Forming Process to Hull Structure Forming,” Journal of Mechanical Science and Technology, Vol. 24, No. 1, pp. 137–140, 2010.
Kang, B. S. and Yoon, J. S., “Sheet Forming Apparatus with Flexible Rollers,” KR Patent, No. 101309228, 2013.
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Yoon, JS., Son, SE., Song, WJ. et al. Study on flexibly-reconfigurable roll forming process for multi-curved surface of sheet metal. Int. J. Precis. Eng. Manuf. 15, 1069–1074 (2014). https://doi.org/10.1007/s12541-014-0438-2
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DOI: https://doi.org/10.1007/s12541-014-0438-2