Abstract This paper investigates the impact of fiber orientation on tool wear when edge-trimming carbon fiber reinforced plastics (CFRP) with particular ply angles of 0°, 45°, 90°, and 135° with 6.35 mm diameter tungsten carbide end-mills at a constant feed of 0.3 m/min under two spindle speeds. The tool wear progress was examined qualitatively and quantitatively using the scanning electron microscopy and digital light microscopy at eight cutting distances between 0.25 and 8 m. The 45° plies resulted in extensive flank wear while the 90° plies yielded the worst edge radius rounding and worn area regardless of the rotational speed. Edge rounding is related to aggressive 2-body abrasion by the broken carbon fibers interacting with the cutting edge. The 0° ply angle has the least amount of tool wear due to the minimal interactions between the carbon fibers and cutting edge with the delamination in the chip formation.

中文翻译：

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碳纤维增强塑料 (CFRP) 层压板修边过程中纤维取向对刀具磨损的影响

摘要 本文研究了使用直径为 6.35 mm 的碳化钨立铣刀对具有 0°、45°、90° 和 135° 特定层角的碳纤维增强塑料 (CFRP) 进行修边时，纤维取向对刀具磨损的影响。在两种主轴速度下以 0.3 m/min 的恒定进给。使用扫描电子显微镜和数字光学显微镜在 0.25 和 8 m 之间的八个切削距离处定性和定量地检查刀具磨损进程。无论转速如何，45° 层都会导致广泛的后刀面磨损，而 90° 层会产生最差的边缘半径倒圆和磨损区域。边缘倒圆与断裂的碳纤维与切削刃相互作用造成的剧烈 2 体磨损有关。