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Forging Process with Al6061 Alloy Rheology Material by Electromagnetic Stirring System

전자교반을 응용한 Al6061 레오로지 소재의 단조공정

  • Published : 2007.10.01

Abstract

The semi-solid process has been developed near net-shape components for kinds of methods. Thixo-forming with reheating prepared billet and rheo-forming with cooled melt until semi-solid state. Material is applied electromagnetic stirring system to slurry with aluminum 6061 alloy. An experiment has variation factors which are pressure, solid-fraction, stirring current and stirring time. The mechanical properties are compared to forge sample with to apply heat treatment T6. This study is researched function a virtual pressure and fine shape zone. Optimum pressure is found to prevent defect of porosity.

Keywords

References

  1. S. B. Brown, M. C. Flemings, dated Jan. 1993, Net Shape Forming Via Semi-Solid Processing, Advanced Materials & Processes, pp. 36-40
  2. M. C. Flemings, 1992, Behavior of Metal Alloys in the Semisolid State. Metallurgical Transactions A, Vol. 22A, pp. 957-981
  3. S. Toyoshima, Y. Takashashi, 1991, A Numerical Simulation of Forming Process for Semi-solid Materials, ISIJ, Vol. 3, pp. 557-582
  4. G. Hirt, R. Cremer, A. Winkelmann, T. Witulski, M. ZiJlgen, 1994, SSM-firming of Usually Wrought Aluminium Alloy, The 3rd Int. Conf. on Semi-solid Processing of Alloys and Composites, pp. 107- 116
  5. E. J. Zoqui, M. Paes and E. Es-Sadiqi, 2002, Macroand microstructure analysis of SSM A356 produced by electromagnetic stirring, Journal of Materials Processing Technology, Vol. 120, pp. 365-373 https://doi.org/10.1016/S0924-0136(01)01148-7
  6. LIU Zheng, MAO Weiming,ZHAO Zhengduo, 2006, Research on semi-solid slurry of a hypoeutectic AI-Si alloy prepared by low superheat pouring and weak electromagnetic stirring, RARE METALS, Vol. 25, No.2, pp, 177-183 https://doi.org/10.1016/S1001-0521(06)60036-3
  7. S. Y. Lee, J. H. Lee, Y. S. Lee, 2001, Characterization of Al 7075 alloys after cold working and heating in the semi-solid temperature range, Jounal of Materials Processing Technology, Vol. 111, pp. 42-47 https://doi.org/10.1016/S0924-0136(01)00494-0
  8. Y. O. Yoon, Y. J. Kim, S. K. Kim, H. H. Jo, 2005, Microstructure Control of AA 7075 Alloy for Thixoextrusion, Journal of the Korean Foundrymen's Society, Vol. 25, No.6, pp. 249-253
  9. S. Chayong, H. V. Atkinson and P. Kapranos, 2005, Thixoforming 7075 aluminium alloys, Materials Science and Engineering A, Vol. 390, Issues 1-2, pp, 3-12 https://doi.org/10.1016/j.msea.2004.05.004