Browse > Article

A Study on Die Forging of a Hollow T-shaped Part  

김현수 (경남대학교 기계설계학과)
김용조 (경남대학교 기계자동화공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.1, 2004 , pp. 32-39 More about this Journal
Abstract
Traditional forging of a hollow T-shaped part has been applied to forge a solid T-shaped product from a solid billet and then to machine the hollow in that. In a case, a hollow T-shaped part can be forged by backward-extruding from a solid billet. In this study, four types of forging were suggested for manufacture of hollow T-shaped parts. Forging simulations for each of these forging methods were carried out to investigate folding defect, metal flow pattern, effective strain, and forging loads. Experimental works were carried out to be compared with the simulation results. Here, the ratio of the thickness of the hollow tube to that of the flange was selected to investigate a forging defect like folding.
Keywords
Forging simulation; Hollow T-shaped part; Backward extrusion forging; Upset forging; Injection forging; Injection-extruding forging;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Kobayashi, S., Oh, S. I., Altan, T., 'Metal Forming and the Finite-Element Method ,' New York, Oxford University Press, 1989
2 Zienkiewicz, O. C., 'The Finite Element Method,' 4th Ed. McGraw-Hill, New York, 1977
3 Balendra, R., and Qin,Y., 'Material-flow Considerations for the Design of Injection Forging,' int. J. Manufacturing Science and Engineering, 1997, Vol. 119, pp. 350-357, 1997   DOI   ScienceOn
4 Balendra, R., Qin, Y., 'FE Simulation of the Development of Flaws During Injection Forging,' Int. J. Tools Manufact. Vol. 34, pp.1091-1101, 1994   DOI   ScienceOn
5 Avizur, B., 'Handbook of Metal Forming Processes,' Wiley, New York, 1983
6 Balendra, R., 'Injection-Chamber to Die-Cavity Interface for Injection Forming,' Int. J. Tools Manufact. Vol. 33, No.6, pp. 753-760, 1993   DOI   ScienceOn
7 Son, K. H., Kim Y. H., Suh Y.S., 'A Study on the Defect of T type Forging Products,' Proceedings of KSPE, pp.952-956, 1997   과학기술학회마을
8 Colla, D., Patersen, S. B., Balendra, R., and Martins, P. A. F., 'Injection Forging of Industrial Components from Thick-Walled Tubes,' int.J. Manufacturing Science and Engineering, Vol. 119, pp. 537-541, 1997   DOI   ScienceOn
9 Balendra, R., Patersen, S. B., and Colla, D., 'Preforming Considerations for the Injection Forging of Tubes,' 11th, Int. Conf. Computer-Aided Prod. Eng. U. K., 1995
10 Arentoft, M., Patersen, S. B., Rodrigues, J. M. C., Martins, P. A. F., Balendra, R., and Wanheim, T., 'Review of Research into the Injection Forging of Tubular Materals,' J. Mat. Proc. Tech. Vol. 52, pp.460   DOI   ScienceOn
11 Kiuchi, M., Chung, H.K. & Yanagimoto, J. 'Analysis of Upsetting of Hollow Billets with Square and Gear-Type Dies,' J. JSTP, Vol.31, pp.907-912, 1990
12 Cho, H. Y., Choi, J. U., Min, K. S., 'Study on the Forging of Splines with Hollow and Solid Billets,' J. KSPE, Vol. 13, No.1, pp.108-115, 1996   과학기술학회마을
13 Bae, S. W., Kim.Y. J., 'Rigid-Plastic Finite Element Analysis for Extrusion-Forging Process Design of a Hollow Flange-Shaped Part,' Proceedings of ISIM2000, Oct. 4-7, pp. 449-452
14 Park, C., Choi, H. J., Hwang, B. B., 'A Process Sequence Design of the Multi-Step Cold Extrusion using Thick-Wall Pipes,' J. KSTP, Vol. 5, No. 3, pp.219-231, 1996   과학기술학회마을
15 Lin, Y. T., and Wang, J. P., 'An Investigation into the constant Friction Factor with the Upper-Bound Flow Function Elemental Technique,' J. Mater. Process. Technol., Vol.36, pp.57-68, 1992   DOI   ScienceOn
16 Rao, K. P., and Sivaram, K., 'A Review of Ring-Compression Testing and Applicability of the Calibration Curves,' J. Mater. Process. Technol., Vol. 37, pp.295-318, 1993   DOI   ScienceOn
17 Lee, C. H., and Altan,T., 'Influence of Flow Stress and Friction Upon Metal Flow in Upset Forging of Rings and Cylinders,' ASME J. Eng. Ind., pp. 775-782, 1972