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Evaluation of the Effects of Rotary Degassing Process Variables on the Quality of A357 Aluminum Alloy Castings

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Abstract

The effects of rotary degassing process variables on the melt and casting quality have been investigated using reduced pressure test results and quality index calculations from tensile data. The results showed that the effectiveness of the rotary degassing process of Al alloys is highly dependent on the combination of rotational speed and the gas flow rate, and that the wrong combination of these factors may result in no improvement or even degradation in quality of castings. For the first time, it has been found that the effectiveness of the pouring and filling system to produce high-quality castings can be characterized numerically. This new method of quantifying the casting system is introduced as a new quality improvement tool for materials and process engineers.

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Acknowledgment

One of the authors (MU) would like to thank The Scientific and Technological Research Council of Turkey (TUBITAK) for a fellowship.

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Authors and Affiliations

  1. Metallic Materials Research Center (MMRC), Malek Ashtar University of Technology, Tehran, Iran

    M. Mostafaei (Research Scientist)

  2. Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran

    M. Ghobadi (Professor)

  3. Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran

    Ghasem Eisaabadi B. (Professor)

  4. Department of Metallurgical and Materials Engineering, Faculty of Engineering, Selçuk University, Konya, Turkey

    Muhammet Uludağ (Research Scientist)

  5. School of Engineering, University of North Florida, Jacksonville, FL, 32224, USA

    Murat Tiryakioğlu (Professor and Director)

Authors
  1. M. Mostafaei
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  2. M. Ghobadi
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  3. Ghasem Eisaabadi B.
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  4. Muhammet Uludağ
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  5. Murat Tiryakioğlu
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Corresponding author

Correspondence to Murat Tiryakioğlu.

Additional information

Manuscript submitted April 25, 2016.

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Mostafaei, M., Ghobadi, M., Eisaabadi B., G. et al. Evaluation of the Effects of Rotary Degassing Process Variables on the Quality of A357 Aluminum Alloy Castings. Metall Mater Trans B 47, 3469–3475 (2016). https://doi.org/10.1007/s11663-016-0786-7

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  • DOI: https://doi.org/10.1007/s11663-016-0786-7

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