【摘要】 碳纤维复合材料(CFRP)因其耐腐蚀、高强度等优异的材料特性常与合金材料组成叠层结构应用于航空航天等尖端领域。由于两种材料的加工性能差异,其叠层结构制孔过程中易出现界面毛刺、界面烧蚀、界面积屑、界面孔径不一致等界面损伤,严重影响叠层结构服役寿命。本文围绕CFRP/合金叠层材料制孔界面损伤进行了系统综述,在叠层界面切削特点方面,阐述了叠层制孔的钻削过程及切屑、轴向力、钻削温度的形成与变化;在界面损伤形成方面,基于叠层制孔钻削机理,分析产生损伤的影响因素;在界面损伤抑制策略方面,从加工参数、制孔刀具、加工方式三方面,阐述了抑制界面损伤的有效策略。最后,对抑制CFRP/合金叠层材料制孔界面损伤的未来研究趋势进行展望。更多还原

【Abstract】 Carbon fiber reinforced polymer(CFRP),owing to its corrosion resistance and high specific strength,is often stacked with metallic alloys to form hybrid laminates for aerospace and other state-of-the-art applications. Owing to the disparate machinability of the two materials,the drilling process of such laminated structures is prone to interfacial damage,including burrs,burning,chip accumulation,and inconsistent hole diameters at the interface. This damage significantly impacts the service life of the laminated structure. This paper provides a systematic review of interface damage during hole drilling in CFRP/alloy laminates. Regarding the machining characteristics at the laminate interface,the drilling process of laminated structure and the formation and evolution of chips,thrust force,and drilling temperature are described.Regarding the machining mechanism at the laminate interface,the drilling process and the formation and variation of chips,axial force,and drilling temperature are described. Concerning the formation of interface damage,the influencing factors based on the drilling mechanism of laminate hole formation are analyzed. Regarding interface damage suppression strategies,effective approaches are outlined from three perspectives:machining parameters,drilling tools,and machining methods.Finally,future research trends for suppressing interface damage during drilling of CFRP/alloy laminated materials are projected.更多还原