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Thixoforging을 이용한 중공형 금속복합재료 부품의 성형공정에 있어서 결함예측
Defect Prediction in Part Fabrication Process of Metal Matrix Composites by Thixoforging Process

윤성원   (부산대 기계공학부 정밀기계공학과  ); 김병민   (부산대 기계공학부 정밀기계공학과  ); 강충길   (부산대 기계공학부, 정밀정형 및 금형가공 연구소(ERC/NSDM)  );
  • 초록

    In the manufacturing process of metal matrix composites parts, thixoforging is one of the most effective forming processes. The major purpose of the current study is to provide the proper conditions such as the die shape, the forging velocity, the forging time, the forging pressure and reinforcement injection velocity and pressure on various defects in thixoforged cylinder liner, filling tests were performed by MAGMA S/W. In order to evaluate the effectiveness of the calculated conditions which is given by computer aided engineering, A357, A380 and SiC $_{p}$ /A380 cylind~5 $mu extrm{m}$ r liner were fabricated under the calculated conditions. SiC $_{p}$ /A380 composite billets were fabricated by both the mechanical stirring and electrical magnetic stirring process. Incase fo SiC $_{p}$ /A380 composite cylinder liner, reinforcement distribution and effect of reinforcement(SiC $_{p}$ ) content(10~20 vol. %)and size(5.5~14 ${\mu}{\textrm}{m}$ ) on the mechanical properties were investigatedstigated.


  • 주제어

    Metal Matrix Composite .   Thixoforging Process .   Homogeneous distribution .   Die Design .   Wear resistance.  

  • 참고문헌 (14)

    1. Ahn, S. S., Kang, C. G., and Jo, H. H., "Induction heating of metal matrix composites for thixoforming", 2nd Asia Austrailians Conf. on Composites Materials (ACCM 2000), Kyongju, Korea, 18-20 Aug, 2000, pp. 309-314. 
    2. 이동건, 강충길, "복합교반법으로 제조한 금속복합재료의 Thixoforming용 재가열공정", 한국소성공학회지, Vol. 11, No. 1, 2002, pp. 45-53.     
    3. Cox, P. C., McGrath, G. G. and Savage, G. M., "Designing with Reinforced Composites to Provide Energy Absorption Mechanisma in Damage Formula 1 Cars", Proc. of the 9th Int. Conf. on Composite Materials Vol. 6, Madrid, Antonio Miravete, 12-16 July, 1993, pp. 241-251. 
    4. Manso, J. J., "Continuous Process of Structural Frames for Automotive Applications", Proc. of the 9th Int. Conf. on Composite Materials Vol. 6, Madrid, Antonio Miravete, 12-16 July, 1993, pp. 276-282. 
    5. Kim, N. S. and Kang, C. G., "An investigation of flow characteristics considering the effect of viscosity variation in the thixoforming process", J. of Materials Processing Technology, Vol. 103, 2000, pp. 12-23. 
    6. Lee, D. G. and Kang, C. G., "Investigation of Reinforced Distribution in Fabrication Process of Metal Matrix Composites by Combined Stirring Process", J. of the Korean Society for Composite materials, vol. 14, 2001, No.15, pp. 1-11. 
    7. Heo, J. C., Lee, S. H. and Kang, C. G., "Thixoforging Die Design and Process Analysis of Hollow Shape Part with Metal Matrix Composites", Proc. of the Korean Society for Technology of Plasticity Fall Annual Meeting, 2001, pp. 268-270. 
    8. Caron, S. and Masounave, J., "A Literature Review on Fabrication Techniques of Particulates Reinforced Metal Composites", Proc. of the 8th Int. Conf. on Composite Materials Vol. 3, Montreal Quebec, 17-29 Sep, 1990, pp. 79-86. 
    9. Girot, F. A., Albingre, L., Quenisset, J. M. and Naslain, R., "Rheocasting Al Matrix Composties", J. of Materials Proc. Technology, Nov., 1987, pp. 18-21. 
    10. Morita, Y., Ozawa, K., Ando, Y., Yahata, S., and Nanba, A., "Compocasting Conditions and Mechanical Properties of Aluminum Matrix Composite Reinforced by SiC Particles", Proc. 3rd Intl. Conf. on Semi-Solid Processing of Alloy and Composite, Institute of Industrial Science University of Tokyo, Japan, Manabu Kiuchi, 13-15 June, 1994, pp. 39-1-39-11. 
    11. Kang, C. G. and Youn, S. W., and Seo, P. K., "Reheating process of metal matrix composites for Thixoforming and their Inductive coil design", J. of Mater. Eng. and Perform., Vol. 11(2) April. 2002. 
    12. Valencia, J. J., Friedhoff, T. G., Creeden, T. P. and Cardarella, J. J., "Microstructural Evaluation of Rapidly Heated Aluminium A356 Alloy Billets", Proc. 5th. Intl. Conf. on Semi-Solid Processing of Alloys and Composites, Colorado School of Mines, Colorado, 23-25 June, 1998, pp. 397-404. 
    13. Cornie, J. A., Moon, H. K., Flemings, M. C., "A Review of Semi-Solid Slurry Processing of Al-Matrix Composites", Proc. of the 8th Int. Conf. on Composite Materials Vol. 4, Montreal Quebec, Canada, 17-29 Sep, pp. 63-78. 
    14. Kang, C. G., "Continuous casting for Al metal matrix composit & development of parts by thixoforming", Technical Report, Engineering Research Center for Net, Shape and Die Manufacturin (ERC/NSDM), Pusan National University, Korea. 2001. 

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