<p>Under dry cutting conditions, the interaction between the tool and the workpiece intensifies, leading to insufficient dissipation of cutting heat and accelerating tool wear. Topology optimization of the tool’s rake face was conducted using its stress distribution as a boundary condition. FEM results indicate that the temperature of the topological micro-texture tool (T4) with a volume fraction of 40% is 21.73% lower than that of the conventional negative chamfer tool (T0). Additionally, the average main cutting force is reduced by 36.4%, and tool wear decreases by 34.27%. During the cutting process, the temperature at T4 is approximately 26.1% lower than at T0. The maximum flank wear width decreases by 15.6%, while the maximum height of the built-up edge (BUE) is reduced by 31.4%. Furthermore, the chip curl diameter and width are reduced by 48.7% and 26.5%, respectively. This study proposes an innovative design of micro-texture on the tool’s rake face through topology optimization, achieving lower processing temperatures, reduced wear, and improved cutting performance. These findings contribute to advancing the design and application of micro-textured tools in machining processes.</p>

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Research on micro-texture design of tools’ surface by topology optimization on cutting performance

  • Ziwei Jiang,
  • Guangfeng Shi,
  • Siwei Meng,
  • Jiye Liu,
  • Deshi Kong

摘要

Under dry cutting conditions, the interaction between the tool and the workpiece intensifies, leading to insufficient dissipation of cutting heat and accelerating tool wear. Topology optimization of the tool’s rake face was conducted using its stress distribution as a boundary condition. FEM results indicate that the temperature of the topological micro-texture tool (T4) with a volume fraction of 40% is 21.73% lower than that of the conventional negative chamfer tool (T0). Additionally, the average main cutting force is reduced by 36.4%, and tool wear decreases by 34.27%. During the cutting process, the temperature at T4 is approximately 26.1% lower than at T0. The maximum flank wear width decreases by 15.6%, while the maximum height of the built-up edge (BUE) is reduced by 31.4%. Furthermore, the chip curl diameter and width are reduced by 48.7% and 26.5%, respectively. This study proposes an innovative design of micro-texture on the tool’s rake face through topology optimization, achieving lower processing temperatures, reduced wear, and improved cutting performance. These findings contribute to advancing the design and application of micro-textured tools in machining processes.