Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

The Effect of Velocity Control Method on the Part Characteristic in Semi-Solid Die Casting

반용융 다이캐스팅 공정에 있어서 속도제어방법이 제품의 특성에 미치는 영향

  • 서판기 (부산대학교 대학원 정밀기계공학과) ;
  • 강충길 (부산대학교 기계공학부, 정밀정형 및 금형가공연구소) ;
  • 손영익 (부산대학교 대학원 정밀기계공학과)
  • Published : 2002.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

The process design to produce a near net shape home-appliance compressor component using semi-solid die casting process is performed. In order to obtain a good component without defects such as liquid segregation and porosity, the relationship between pressure and time, and plunger tip displacement and injection velocity are proposed with repeated trial and error. The effect of the velocity variation in the process parameters on liquid segregation and extraction is investigated to produce the aluminum frame part(a kind of compressor part) with good mechanical properties. The mechanical characteristic of semi-solid die casting formed parts for AlSi7Mg0.65r(A357) and AlSi17Cu4Mg(A390) are investigated with a view to minimizing the occurrence of defects. To investigate of application possibility at industry field, A380 aluminum alloy with 8∼9% silicon contents used for the squeeze casting process. The obtained mechanical properties is compared with semi-solid die casting.

Keywords

References

  1. Yoshida, C., Moritaka, M., Shinya, S., Yahata, S., Takebayashi, K. and Nanba, A., 1992, 'Semi-Solid Forging Aluminium Alloy,' Proc. of 2nd Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 95 - 102
  2. Martin, C. L., Brown, S. B., Favier, D. and Suery, M., 1994, 'Mechanical Behavior of Coarse Dendritic Semi-Solid Sn-Pb Alloys under various Stress States,' Proc. of 3rd Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 27-36
  3. Seconde, J. F., 1984, 'Microstructure et Rheologie Des alliages Sn-Pb Semi-Solid,' Ph. D. Thesis, Inst. Nat. Pol. De Grenoble, France
  4. Kumar, P., Martin, C. L., and Brown, S., 1994, 'Predicting the Constitutive Flow Behavior of Semi-Solid Metal Alloy Slurries,' Proc. of 3rd Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 37-46
  5. Tietmann, A., Bremer, T., Hirt, G. and Kopp, R., 1992, 'Preliminary Results in Thixoforging Aluminium Wrought Alloys,' Proc. of 2nd Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 170-179
  6. Kitamura, K., Ando, Y., Hironaka, K., Yahata, S. and Yoshida, C., 1994, 'Die Casting of Aluminium Alloy in Semi-Solid State,' Proc. of 3rd Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 181-190
  7. Vinarcik, E. J., Taylor, J. D. and Farris, K., 1998, 'Automotive Fuel System Component Design for Manufacturing Using the Semi Solid Process,' Proc. of 5th Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 105 -113
  8. Idegomori, T., Hirono, H., Ito, O., Kimishima, S. and Mizoue, K., 1998, 'The Manufacturing of Automobile Parts Using Semi-Solid Metal Processing,' Proc. of 5th Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 71-77
  9. Midson, S. P., Minkler, R. B. and Btucher, H. G., 2000, 'Gating of Semi-Solid Aluminum Castings,' Proc. of 6th Int. Conf. on Semi-Solid Processing of Alloys and Composites, pp. 67-71
  10. Kang, C. G. and Kang, D. W., 1997, 'The Effect of Forging Process Conditions of Semi-solid Aluminum Material on Mechanical Properties,' Transactions of The Korean Society of Mechanical Engineers(A), Vol. 21, No.9, pp. 1400-1403
  11. Eisen, P. and Young, K., 2000, 'Diecasting Systems for Semiliquid & Semisolid Metalcasting -Applications,' Proc. of 6th Int. Conf. on Semi-Solid processing of Alloys and Composites, pp. 41-46
  12. Althix Billets, 1996, Aluminium Pechiney

Cited by

  1. Rheoforging of thin case for IT devices with optimal process parameters and new type die design vol.228, pp.6, 2014, https://doi.org/10.1177/0954406213495768
  2. Microstructure and thermoelectric properties of porous Bi2Te2.85Se0.15 bulk materials fabricated by semisolid powder processing vol.30, pp.17, 2015, https://doi.org/10.1557/jmr.2015.142