平前刀面麻花钻钻削CFRP层合板耦合作用及制孔损伤分析

摘要/Abstract

摘要： 本文采用三把不同前角的平前刀面麻花钻,以不同的加工参数对CFRP层合板进行钻孔实验,研究平前刀面麻花钻前角、转速和进给速度的耦合作用对碳纤维复合材料制孔出口损伤的影响。实验结果表明:前角、进给速度和转速的改变会影响刀具的推挤作用、切削作用及材料的物理性能,从而使出口损伤受到影响。当前角为26°,进给速度为200 mm/min及前角为30°,进给速度为50 mm/min时,制孔出口损伤随着转速的增加先减小后增大。最后,根据实验结果给出了每把平前刀面麻花钻的最佳加工工艺参数。

关键词: CFRP, 平前刀面麻花钻, 耦合作用, 制孔损伤

Abstract: In this paper, three plane rake facetwist drills with different rake angles were used to drill CFRP composite laminated with different processing parameters. This paper focuses on the influence of the coupling effect of rake angle, spindle speed and feed speed on the damage of borehole exit based on CFRP composite. The experimental results show that the coupling effect between the rake angle, the feed speed and the spindle speed can change the immediate pushing effect, the cutting effect and the physical properties of the borehole exit, and further affect the damage of the borehole exit. When the rake angle is 26°, the feed speed is 200 mm/min and the rake angle is 30°, the feed speed is 50 mm/min, the damage at the borehole exit firstly decreases and then increases with the increase of the spindle speed. Finally, according to the experimental results, the optimum processing parameters of each plane rake face twist drill are given.

Key words: CFRP, plane rake face twist drill, coupling effect, drilling damage

中图分类号:

TB332

刘礼平, 张放, 连波, 周长庚, 徐建新, 刘雪峰. 平前刀面麻花钻钻削CFRP层合板耦合作用及制孔损伤分析[J]. 复合材料科学与工程, 2020, 0(12): 74-80.

LIU Li-ping, ZHANG Fang, LIAN Bo, ZHOU Chang-geng. THE COUPLING EFFECT AND DAMAGE ANALYSIS DURING DRILLING CFRP LAMINATES WITH PLANE RAKE FACE TWIST DRILLS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2020, 0(12): 74-80.

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