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<p>To comprehensively evaluate the cutting performance of a Minimum Quantity Lubrication (MQL)-assisted micro-textured cutting tool with wavy grooves for milling the nickel-based superalloy GH4169, we designed a wavy-groove micro-textured and applied MQL during milling. Considering the machining challenges of GH4169, particularly high cutting temperatures and large cutting forces, a series of cutting tests were conducted to investigate how micro-texture geometric parameters affect cutting force, cutting temperature, surface roughness, and surface morphology at various cutting speeds. The results indicate that, under MQL conditions, the micro-textured cutting tool effectively reduces cutting force, cutting temperature, and surface roughness. Specifically, surface roughness exhibited a decrease followed by an increase as the weave width increased; conversely, surface roughness increased as the weave spacing or cutting speed decreased. Analysis of the machined surfaces shows that the best surface finish was achieved at a cutting speed of 180&#xa0;m/min with a weave width of 150&#xa0;μm and a weave spacing (pitch) of 80&#xa0;μm.</p>

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Study on cutting performance of milling nickel-based superalloy GH4169 with micro-textured tools under minimum quantity lubrication condition

  • 期刊论文

  • 发表日期：

    2025年10月25日

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  • Yu Zhang,
  • Qiulin Niu,
  • Zhilong Xie,
  • Meiyi Wu,
  • Jingyi Gao

摘要

To comprehensively evaluate the cutting performance of a Minimum Quantity Lubrication (MQL)-assisted micro-textured cutting tool with wavy grooves for milling the nickel-based superalloy GH4169, we designed a wavy-groove micro-textured and applied MQL during milling. Considering the machining challenges of GH4169, particularly high cutting temperatures and large cutting forces, a series of cutting tests were conducted to investigate how micro-texture geometric parameters affect cutting force, cutting temperature, surface roughness, and surface morphology at various cutting speeds. The results indicate that, under MQL conditions, the micro-textured cutting tool effectively reduces cutting force, cutting temperature, and surface roughness. Specifically, surface roughness exhibited a decrease followed by an increase as the weave width increased; conversely, surface roughness increased as the weave spacing or cutting speed decreased. Analysis of the machined surfaces shows that the best surface finish was achieved at a cutting speed of 180 m/min with a weave width of 150 μm and a weave spacing (pitch) of 80 μm.