Negligible work has been reported on exploring the machinability aspects of titanium-based nanocomposites. High-density graphene nanoplatelets (GNPs) reinforced Ti6Al4V matrix nanocomposites are developed by using a high-frequency induction heating technique. The nanocomposites are developed with different percentages of GNPs, including 0 wt.% (base-Ti6Al4V), 0.3 wt.%, 0.6 wt.%, and 1.2 wt.% (GNPs/Ti6Al4V). Afterward, the machining behavior of the Ti6Al4V nanocomposites is investigated in detail during milling in terms of the cutting force components, surface roughness, surface morphology, microhardness and chips morphology. The milling results show that the addition of GNPs reinforcements considerably affects the machining performance of the nanocomposites. Even with high hardness, the 0.3 wt.% and 1.2 wt.% GNPs/Ti6Al4V nanocomposites showed lower cutting forces than the base-Ti6Al4V, i.e., leading to energy conservation. This is mainly due to the profound effect of the GNPs on the hardness, microstructure, and developed phases (TiC and graphene agglomeration) in the nanocomposites. Despite having a higher hardness, all the GNPs/Ti6Al4V nanocomposites revealed improved surface morphology as compared to the base-Ti6Al4V samples. For instance, at a high feed rate of 210 mm/min, the nanocomposites with 0.3 wt.%, 0.6 wt.%, and 1.2 wt.% GNPs contents exhibited approximately 39%, 13%, and 24%, respectively, lower roughness as compared to the base-Ti6Al4V. The 1.2 wt.% GNPs/Ti6Al4V samples show the lowest increase (3.2%) in the surface hardness even after machining at a higher cutting speed of 75 m/min. In comparison, the base-Ti6Al4V samples, which have lower (8.6%) initial hardness, exhibit an increase of 12.7% in surface hardness after machining at the same cutting speed (75 m/min). Overall, the 0.3 wt.% and 1.2 wt.% GNPs nanocomposites are close contestants for yielding the lower cutting forces, improved surface roughness, lower variation in the machined surface hardness, and smoother surface quality with minimum defects in most of the milling conditions, i.e., leading to sustainable machining and clean environment.

关于探索钛基纳米复合材料的可加工性方面的报道可忽略不计。通过使用高频感应加热技术，开发出了高密度石墨烯纳米片（GNPs）增强的Ti6Al4V基纳米复合材料。用不同百分比的GNP开发了纳米复合材料，包括0重量％（碱-Ti 6 Al 4 V），0.3重量％，0.6重量％和1.2重量％（GNP / Ti 6 Al 4 V）。然后，在铣削过程中，根据切削力分量，表面粗糙度，表面形态，显微硬度和切屑形态，详细研究了Ti6Al4V纳米复合材料的加工行为。研磨结果表明，GNPs增强剂的添加大大影响了纳米复合材料的加工性能。即使具有高硬度，也可以达到0.3重量％和1.2重量％。GNPs / Ti6Al4V纳米复合材料的百分比显示出比基础Ti6Al4V更低的切削力，即节省了能源。这主要是由于GNP对纳米复合材料的硬度，微观结构和发达相（TiC和石墨烯团聚）的深远影响。尽管具有较高的硬度，但与基础Ti6Al4V样品相比，所有GNP / Ti6Al4V纳米复合材料均显示出改善的表面形态。例如，在210mm / min的高进给速度下，具有0.3wt。％，0.6wt。％和1.2wt。％的GNP含量的纳米复合材料分别表现出约39％，13％和24％的较低粗糙度。与基础Ti6Al4V相比。即使在以75 m / min的更高切削速度进行机械加工后，1.2 wt。％GNPs / Ti6Al4V样品也显示出最低的表面硬度增加（3.2％）。相比之下，Ti6Al4V基本样品 初始硬度较低（8.6％）的材料，在相同的切削速度（75 m / min）下进行机械加工后，表面硬度增加了12.7％。总体而言，0.3重量％和1.2重量％的GNPs纳米复合材料在降低铣削力，改善表面粗糙度，降低机械加工表面硬度的变化以及在大多数铣削条件下具有最小缺陷的情况下，使表面质量更平滑，是最有力的竞争者，即，导致可持续的机械加工和清洁的环境。