基于超细晶硬质合金钻头的AFRP钻削性能

发布时间：2018-01-22 09:46

本文关键词： 超细晶硬质合金芳纶纤维钻头钻削力钻削温度　出处：《复合材料学报》2017年10期 　论文类型：期刊论文

【摘要】：采用超细晶硬质合金钻头开展了芳纶纤维增强树脂基复合材料(Aramid Fiber Reinforce Polymer Composites,AFRP)的钻削实验,从钻削力、钻削温度、制孔质量、刀具磨损等方面对比分析了超细晶硬质合金钻头与普通硬质合金钻头的钻削性能。实验结果表明:芳纶纤维增强树脂基复合材料钻削过程中,钻削力随进给速度的增大而增大,随主轴转速的增大而减小,超细晶硬质合金钻头的钻削力比普通硬质合金钻头降低了40.6%以上;钻削温度随进给速度的增大而减小,随主轴转速的增大而增大,相对普通硬质合金钻头,采用超细晶硬质合金钻头的钻削温度降低了47~85℃;超细晶硬质合金钻头钻削产生的拉毛和热损伤明显少于普通硬质合金钻头;经过长时间的钻削,普通硬质合金钻头的jk刃和主切削刃出现了崩刃,后刀面出现了严重的磨料磨损;而超细晶硬质合金钻头由于高硬度和高耐磨性等特性,刀具的磨损相对较小,适合于芳纶纤维增强树脂基复合材料的高效低损伤加工。
[Abstract]:The ultrafine cemented carbide drill was carried out based on aramid fiber reinforced resin composite (Aramid Fiber Reinforce Polymer Composites, AFRP) of the drilling experiment, the drilling force, drilling temperature, drilling quality, tool wear and other aspects of a comparative analysis of ultra-fine grain cemented carbide drill with ordinary carbide drill drilling performance experimental results show that the aramid fiber reinforced resin matrix composite drilling process, drilling and cutting force increases with feed speed increases, decreases with the increase of spindle speed, ultrafine cemented carbide drill bit drilling force ordinary carbide drill is reduced by more than 40.6%; increasing the cutting temperature with drill feed speed decreases, increases with increasing spindle speed, relatively common cemented carbide drill, the ultrafine cemented carbide drill bit drilling temperature reduced 47~85 DEG C; ultrafine cemented carbide drill drilling production Galling and thermal damage is obviously less than that of common cemented carbide drill; after a long time of drilling, ordinary carbide drill JK edge and main cutting edge chipping appeared, flank wear abrasive appeared serious; and the ultrafine cemented carbide drill bit due to the characteristics of high hardness and high wear resistance, less wear of tool the aramid fiber reinforced for machining of composites.

【作者单位】：湖南科技大学智能制造研究院;难加工材料高效精密加工湖南省重点实验室;
【基金】：国家自然科学基金(51575179;51205126) 湖南省自然科学基金青年人才联合培养项目(2017JJ3073;12JJB006)
【分类号】：TG713.1;TQ327
【正文快照】： 网络出版地址:www.cnki.net/kcms/detail/11.1801.TB.20170307.1351.004.html引用格式:伍俏平,刘平,邓朝晖,等.基于超细晶硬质合金钻头的AFRP钻削性能[J].复合材料学报,2017,34(10):2246-2253.WU Qiaoping,LIU Ping,DENG Zhaohui,et al.Drilling performance of ultrafine cem

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