Al/CFRP叠层材料制孔过程及损伤影响因子分析  

Analysis of Hole Processing and Damage Influencing Factors of Al/CFRP Laminates

作　　者：胡智钦 袁信满 龚清洪 周进 侯珺森 HU Zhiqin;YUAN Xinman;GONG Qinghong;ZHOU Jin;HOU Junsen(Chengdu Aircraft Industry(Group)Co.,Ltd.,Chengdu 610091,China)

机构地区：[1]成都飞机工业(集团)有限责任公司,成都610091

出　　处：《机械科学与技术》2024年第11期2000-2008,共9页Mechanical Science and Technology for Aerospace Engineering

摘　　要：Al/CFRP结构零部件需要加工大量高精度连接孔以满足装配需求,由于缺乏匹配切削参数的制孔力学响应、孔口质量研究,易因钻削载荷过大而形成出口毛刺、分层、撕裂等缺陷,严重制约了叠层结构在高端装备中的应用。因此,基于材料体积去除率函数,通过切削力试验分析了叠层材料钻削的力学响应,研究了切削参数对切削轴向力的影响规律,并在切削力学响应的基础上,分析了切削参数对孔口缺陷评价系数的敏感程度排秩。研究表明:叠层材料钻削的力学响应与各组分材料体积去除率呈正相关,切削参数对孔口缺陷评价系数的敏感程度排秩为V_f>S。For assembling,crowded assembly holes need to be drilled for CFRP/Al laminate products.Due to the lack of hole-making mechanical response and hole quality research that matches cutting parameters,it is easy to form exit burrs,delamination,tearing due to excessive drilling load.Defects such as cracks seriously restrict the application of laminated structures in high-end equipment.Therefore,based on the material volume removal rate function,the mechanical response of laminated material drilling through cutting force tests is analyzed,the influence of the cutting parameters on the cutting axial force is studied.The sensitivity of the parameters to the orifice defect evaluation coefficient is ranked.The research shows that the mechanical response of the laminated material drilling is positively correlated with the volume removal rate of each component material,and the sensitivity of the cutting parameters to the evaluation coefficient of orifice defects is ranked as Vf>S.

关 键 词：叠层材料 切削轴向力 切削参数 材料体积去除率 缺陷评价 

分 类 号：TB332[一般工业技术—材料科学与工程]