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The performance, quality, and efficiency of 3D printing significantly depend on the nozzle material selected. Multiple conflicting criteria make material selection complex. Present paper uses a novel CRITIC-TRUST multi-criteria decision-making (MCDM) approach to systematically estimate the nozzle materials for 3D printers. Nine different criteria, including wear resistance, thermal conductivity, and machinability, were analyzed. Results from the CRITIC-TRUST approach shows that Brass appeared as the optimal nozzle material, closely followed by Titanium Alloy and Hardened Steel. By using the sensitivity analysis, the robustness and effectiveness of this methodology were confirmed.

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3D Printer Nozzle Material Selection—A CRITIC-TRUST MCDM Approach

  • 会议论文

  • 发表日期：

    2026年

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  • Deogonda B. Patil,
  • Kanak Kalita,
  • Ranjan Kumar Ghadai

摘要

The performance, quality, and efficiency of 3D printing significantly depend on the nozzle material selected. Multiple conflicting criteria make material selection complex. Present paper uses a novel CRITIC-TRUST multi-criteria decision-making (MCDM) approach to systematically estimate the nozzle materials for 3D printers. Nine different criteria, including wear resistance, thermal conductivity, and machinability, were analyzed. Results from the CRITIC-TRUST approach shows that Brass appeared as the optimal nozzle material, closely followed by Titanium Alloy and Hardened Steel. By using the sensitivity analysis, the robustness and effectiveness of this methodology were confirmed.