| 冷却空气流向对CFRP制孔刀具磨损及孔质量的影响 |
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| 引用本文： | 王福吉,成德,赵猛,付饶.冷却空气流向对CFRP制孔刀具磨损及孔质量的影响[J].复合材料学报,2019,36(2):410-417. |
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| 作者姓名： | 王福吉 成德 赵猛 付饶 |
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| 作者单位： | 大连理工大学 机械工程学院 精密与特种加工教育部重点实验室, 大连 116024 |
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| 基金项目： | NSFC-辽宁联合基金重点项目（U1508207）；国家自然科学基金面上项目（51575082）；大连市科技重大专项计划（2018ZD14GX005）；国家创新群体（51621064）；中央高校基本科研业务费（DUT16TD01） |
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| 摘 要： | 在加工碳纤维增强树脂基复合材料（CFRP）时多用冷却工艺来提升加工质量。其中，空气冷却工艺因其方便性被广泛用于实际加工中。然而，目前尚缺少空气冷却方向对刀具磨损和加工质量的研究。文章通过控制冷却空气的方向，开展了干式切削、正向喷气和逆向吸气冷却条件下钻削CFRP材料的研究。获得了上述冷却条件对双顶角刀具第二主切削刃末端磨损的影响规律，发现气体冷却都能有效抑制刀具磨损，且在对出口温度影响相近的条件下，逆向冷却比正向冷却能够更好地抑制磨损。进而分析了冷却条件对钻削出口损伤的抑制效果，发现冷却、冷却方式对孔出口撕裂深度的抑制作用都较小，但逆向吸气冷却能够有效减小出口的毛刺高度，是一种有效提高制孔质量的冷却工艺。
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| 关 键 词： | 碳纤维增强树脂基复合材料(CFRP) 钻削 冷却方向 刀具磨损 出口损伤 |
| 收稿时间： | 2018-01-09 |
Influence of cooling air direction on tool wear and hole quality in CFRP drilling |
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| WANG Fuji,CHENG De,ZHAO Meng,FU Rao.Influence of cooling air direction on tool wear and hole quality in CFRP drilling[J].Acta Materiae Compositae Sinica,2019,36(2):410-417. |
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| Authors: | WANG Fuji CHENG De ZHAO Meng FU Rao |
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| Affiliation: | Key Laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education, College of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | In the drilling of carbon fibre reinforced plastic (CFRP) components, the cooling process is usually adopted to prolong the tool life and improve the machining quality. Among them, air cooling technology is widely used in actual processing because of its convenience. However, there is a lack of research about air cooling direction on tool wear and machining quality. In this paper, by controlling the flow direction of cooling air, an experimental study of drilling CFRP materials was carried out under dry drilling, forward jet cooling and reverse suction cooling. Meanwhile the change regulation of tool wear on the secondary cutting edge of the double apex angle drill tool was acquired. It is found that gas cooling can effectively restrain tool wear. Under the similar influence of exit temperature by gas cooling, the reverse suction cooling can better effectively restrain the tool wear than forward jet cooling. Furthermore, the inhibition effect of cooling conditions on drilling export damage was analysed, it is found that the tear of hole exit is less restrained by cooling and cooling ways. The height of burrs, however, is restrained obviously by the cooling ways. The reverse suction cooling can effectively reduce the height of burrs. It can be a suitable cooling process in drilling CFRP. |
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| Keywords: | carbon fibre reinforced plastic (CFRP) drilling cooling direction tool wear export damage |
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