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This study takes a unique approach to investigate and explore the texture of the resolidified layer on Ni–Cr–Fe-based materials that form on surfaces manufactured by wire electrical discharge machining (WEDM). The surfaces were machined while keeping the open voltage, current, and other generator parameters constant. Five grids of lateral feed percentage Δy were varied, based on the wire diameter dw (180 µm), acting directly on the change of the front working clearance with variations of Δy = 100, 75, 50, 25, and 10%. The results show that the lateral feed affects the roughness of Sa and Sz, respectively. Inconel 718 presented the smallest variations and the largest amplitude Sz. The stainless steel AISI 304 resulted in smaller distortions, mainly at Δy = 10 and 25%. In both materials, the application of Δy = 100% resulted in the worst textures due to the decreased washing efficiency in the working gap. These findings have practical implications for the manufacturing of Ni–Cr–Fe-based materials. An Sdr—Smr2 mapping was performed for the hybrid and functional characterization of the texture behavior, and no correlations were found between the variation of the tested parameters.

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Texture Behavior in Ni–Cr–Fe Alloys by Different Lateral Infeed Machining in WEDM Process

  • 章节

  • 发表日期：

    2025年

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  • Giovani Conrado Carlini,
  • Igor dos Santos Roik,
  • Rodrigo Blödorn,
  • Fred Lacerda Amorim

摘要

This study takes a unique approach to investigate and explore the texture of the resolidified layer on Ni–Cr–Fe-based materials that form on surfaces manufactured by wire electrical discharge machining (WEDM). The surfaces were machined while keeping the open voltage, current, and other generator parameters constant. Five grids of lateral feed percentage Δy were varied, based on the wire diameter dw (180 µm), acting directly on the change of the front working clearance with variations of Δy = 100, 75, 50, 25, and 10%. The results show that the lateral feed affects the roughness of Sa and Sz, respectively. Inconel 718 presented the smallest variations and the largest amplitude Sz. The stainless steel AISI 304 resulted in smaller distortions, mainly at Δy = 10 and 25%. In both materials, the application of Δy = 100% resulted in the worst textures due to the decreased washing efficiency in the working gap. These findings have practical implications for the manufacturing of Ni–Cr–Fe-based materials. An Sdr—Smr2 mapping was performed for the hybrid and functional characterization of the texture behavior, and no correlations were found between the variation of the tested parameters.