Abstract
The design of roll profile in shape rolling is important as a key role in improving product quality, such as dimensional accuracy, ensuring defect-free property and good mechanical properties. In this study, the design method using three dimensional electric field analysis (3D-EFA) is proposed to design intermediate roll profiles for the shape rolling. The shape of equi-potential lines as intermediate roll profiles could be generated between the initial shape and final shape by 3D-EFA. The intermediate roll profile for each pass is selected among a numerous equi-potential lines, and the effectiveness of the selected roll profiles is verified by FEsimulation. The over- or under-filling area is calculated from the result of FE-simulation, another equi-potential line is selected to compensate for the area of the error. The proposed method is applied to a shape like rear door hinge that is generally designed by the trial and error method to show the applicability of this method for various shapes. The lab-scale experiment is carried out with plasticine, and the results are within the allowable tolerance of ±0.5 mm. Therefore, the proposed method can be widely used to design roll profiles for complex shapes thereby reducing the design time.
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References
Wusatowski, Z., “Fundamentals of Rolling,” Pergamon Press, pp. 501–530, 1969.
British Steel Corporation, “Roll Pass Design,” pp. 15–41, 1976.
Saito, Y., Moriga, M., and Kato, K., “Calculation of Spread and Elongation of Bars in Rolling Pass Sequences, Square-Oval, Square-Diamond and Round-Oval,” Journal of Iron Steel Institute of Japan, Vol. 63, No. 12, pp. 1819–1827, 1977.
Saito, Y., Takahashi, Y., Moriga, M., and Kato, K., “A New Method for Calculating Deformation and Force Parameters in Steel Rod Rolling and Its Application to Roll Pass Design,” The Japan Society for Technology of Plasticity, Vol. 24, No. 273, pp. 1070–1077, 1983.
Shinokura, T. and Takai, K., “A New Method for Calculating Spread in Rod Rolling,” Journal of Applied Metalworking, Vol. 2, No. 2, pp. 94–99, 1982.
Lee, Y. S., Kim, B. M., and Kim, D. H., “Prediction Model of the Exit Cross Sectional Shape of Workpiece in Round-Oval-Round Pass Rolling,” International Journal of KSME, Vol. 16, No. 6, pp. 785–798, 2002.
Lee, S. J., Kim, S. M., Ko, D. C., and Kim, B. M., “Design of Roll Profile in Shape Rolling of an Irregular Angle Bar by the Modified Butterfly Method,” Int. J. Precis. Eng. Manuf., Vol. 14, No. 1, pp. 93–102, 2013.
Lee, S. R., Lee, Y. K., Park, C. H., and Yang, D. Y., “A New Method of Preform Design in Hot Forging by using Electric Field Theory,” International Journal of Mechanical Sciences, Vol. 44, No. 4, pp. 773–792, 2002.
Lee, S. K., Lee, J. E., Kim, S. M., and Kim, B. M., “Design of Intermediate Die Shape of Multistage Profile Drawing for Linear Motion Guide,” Journal of Mechanical Science and Technology, Vol. 24, No. 12, pp. 2539–2544, 2010.
Kim, S. M., “A Study on the Process Design of Shape Drawing Process for Steering Spline,” M.Sc. Thesis, Department of Precision Manufacturing System Division, School of Mechanical Engineering, Pusan National University, 2010.
Lee, S. J., Ko, D. C., Lee, S. K., and Kim, B. M., “A New Design of Roll Profile In Shape Rolling Process of Automobile Door Hinge using Electric Field Analysis,” Steel Research International, pp. 35–38, 2012.
Lee, J. H., Kim, Y. H., Bae, W. B., and Lee, W. H., “A Study on Development of Model Materials Showing Similar Flow Characteristics of Hot Mild Steel at Various Temperatures,” Transactions of the KSME, Vol. 17, No. 5, pp. 1161–1171, 1993.
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Sang-Jin Lee and Kyung-Hun Lee contributed equally to this work
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Lee, SJ., Lee, KH., Ko, DC. et al. Design of roll profile in shape rolling by 3D-EFA. Int. J. Precis. Eng. Manuf. 16, 701–706 (2015). https://doi.org/10.1007/s12541-015-0093-2
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DOI: https://doi.org/10.1007/s12541-015-0093-2