Abstract Additive manufacturing induces a microstructural anisotropy in its components, that reflects on their mechanical properties, and, in turn, on their machinability. In this paper, the tool wear when milling laser powder bed fused Ti6Al4V parts with four different build-up orientations was evaluated. The tool wear was qualitatively and quantitatively examined, and assessed indirectly by analyzing the chip morphology and the machined surface quality. This study demonstrates that the tool life decreases gradually up to 40%, going from machining horizontally manufactured samples to vertically manufactured ones. Furthermore, a novel interpretation of the correlation between the tool life and the additive manufacturing-induced anisotropy of the part was given.

中文翻译：

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增材制造引起的各向异性对 Ti6Al4V 端铣刀具磨损的影响

摘要 增材制造在其部件中引起微观结构各向异性，这反映在它们的机械性能上，进而反映在它们的可加工性上。在本文中，对铣削激光粉末床熔融 Ti6Al4V 零件时的刀具磨损进行了评估，该零件具有四种不同的堆积方向。对刀具磨损进行定性和定量检查，并通过分析切屑形态和加工表面质量间接评估。该研究表明，从加工水平制造的样品到垂直制造的样品，刀具寿命逐渐降低至 40%。此外，还给出了刀具寿命与零件增材制造引起的各向异性之间相关性的新解释。