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<p>Inconel 718 is a high-performance nickel-chromium alloy recognized for its strength, corrosion resistance, and capability to endure extreme temperatures. It is widely used in demanding industries requiring structural integrity under harsh conditions. However, despite these exceptional properties, its machinability presents significant challenges. This study centers on an experimental investigation complemented by the implementation of an effective methodological approach aimed at optimizing the turning performance of Inconel 718. The optimization is based on multiple output responses, including tool wear (<i>Vb</i>), surface roughness (<i>Ra</i>), cutting power (<i>Pc</i>), cutting temperature (<i>T</i>), and material removal rate (<i>MRR</i>), the main goal being to explore the use of composite ceramic inserts (Al₂O₃+SiCw) in the dry machining of Inconel 718. The second objective focuses on employing multi-criteria decision-making (MCDM) techniques represented by VIKOR, MOORA, and TODIM approaches for the identification of the optimal solution through simultaneously minimizing (<i>Ra</i>, <i>T</i>, <i>Vb</i> and <i>Pc</i>), while maximizing (<i>MRR</i>). Finally, a comparative analysis is performed between the VIKOR and the combination VIKOR-AHP weighting methods. The results obtained demonstrate the effectiveness of the CC670 composite ceramic in machining Inconel 718, achieving excellent performance characterized by low (<i>Ra</i>), minimal (<i>Vb</i>), and reduced cutting temperatures and forces, all while ensuring high productivity.</p>

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MOORA, VIKOR-AHP and TODIM methodologies for cutting parameters optimization when turning inconel 718

  • 期刊论文

  • 发表日期：

    2026年3月3日

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  • Hanane Boumaza,
  • Abdelkrim Haddad,
  • Salim Belhadi,
  • Mohamed Athmane Yallese,
  • Tarek Mabrouki

摘要

Inconel 718 is a high-performance nickel-chromium alloy recognized for its strength, corrosion resistance, and capability to endure extreme temperatures. It is widely used in demanding industries requiring structural integrity under harsh conditions. However, despite these exceptional properties, its machinability presents significant challenges. This study centers on an experimental investigation complemented by the implementation of an effective methodological approach aimed at optimizing the turning performance of Inconel 718. The optimization is based on multiple output responses, including tool wear (Vb), surface roughness (Ra), cutting power (Pc), cutting temperature (T), and material removal rate (MRR), the main goal being to explore the use of composite ceramic inserts (Al₂O₃+SiCw) in the dry machining of Inconel 718. The second objective focuses on employing multi-criteria decision-making (MCDM) techniques represented by VIKOR, MOORA, and TODIM approaches for the identification of the optimal solution through simultaneously minimizing (Ra, T, Vb and Pc), while maximizing (MRR). Finally, a comparative analysis is performed between the VIKOR and the combination VIKOR-AHP weighting methods. The results obtained demonstrate the effectiveness of the CC670 composite ceramic in machining Inconel 718, achieving excellent performance characterized by low (Ra), minimal (Vb), and reduced cutting temperatures and forces, all while ensuring high productivity.