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EXPERIMENTAL INVESTIGATION AND OPTIMIZATION OF MACHINING PARAMETERS IN WEDM OF ZrO2 AND SEASHELL POWDER-REINFORCED BIODEGRADABLE AZ31 Mg ALLOY COMPOSITE

Author

Listed:
  • V. SESHADHRI

    (Department of Mechanical Engineering, Alagappa Chettiar Government College of Engineering and Technology, Karaikudi 630 004, Tamil Nadu, India)

  • R. SARALA

    (Department of Mechanical Engineering, Alagappa Chettiar Government College of Engineering and Technology, Karaikudi 630 004, Tamil Nadu, India)

  • S. V. ALAGARSAMY

    (��Department of Mechanical Engineering, Mahath Amma Institute of Engineering and Technology, Pudukkottai 622 101, Tamil Nadu, India)

  • C. ILAIYA PERUMAL

    (Department of Mechanical Engineering, Alagappa Chettiar Government College of Engineering and Technology, Karaikudi 630 004, Tamil Nadu, India)

Abstract

In the current scenario, many researchers aspire to develop biodegradable material for biomedical implant applications. Magnesium (Mg)-based alloys are most promising materials since they have mechanical properties similar to human bone. In this study, Mg alloy AZ31 matrix was reinforced with a seashell powder (2wt.%) and zirconium dioxide (10wt.%) using bottom pouring stir casting furnace. Scanning electron microscope (SEM) with energy dispersive spectroscopy (EDS) images confirms the proper distribution of reinforcement throughout the matrix. This study analyzed the influence of WEDM process parameters for the material removal rate (MRR) and surface roughness (SR) of the proposed composite. According to Taguchi’s L9 (33) orthogonal array the machining was performed to investigate the ideal machining parameters with a range of pulse current (Ip) 6–8 amps, pulse-on time (Ton) 5–15μs and pulse-off time (Toff) 10–30μs, respectively. Analysis of variance (ANOVA) result confirms that Ip (45.86%) has the most influencing parameter affecting the MRR and SR, followed by Ton (25.10%) and Toff (17.19%), respectively. Furthermore, Technique for Order Preference by Similar Ideal Solution (TOPSIS) and desirability approach was employed to find the optimal parameter combinations to attain the best combined output responses.

Suggested Citation

  • V. Seshadhri & R. Sarala & S. V. Alagarsamy & C. Ilaiya Perumal, 2023. "EXPERIMENTAL INVESTIGATION AND OPTIMIZATION OF MACHINING PARAMETERS IN WEDM OF ZrO2 AND SEASHELL POWDER-REINFORCED BIODEGRADABLE AZ31 Mg ALLOY COMPOSITE," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 30(08), pages 1-14, August.
    • Handle: RePEc:wsi:srlxxx:v:30:y:2023:i:08:n:s0218625x23500567
    DOI: 10.1142/S0218625X23500567
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    Keywords

    AZ31 Mg alloy; ANOVA; seashell; stir casting; TOPSIS; WEDM; ZrO2;
    All these keywords.

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