碳纤维增强复合材料钻削在不同切削方向角下的孔壁质量分析  

Study on Hole Wall Quality of Carbon Fiber Reinforced Composites Drilling Under Different Cutting Angles

作　　者：周磊[1] 罗卫强 楚英 王昌赢[1] 陈明[1] ZHOU Lei;LUO Weiqiang;CHU Ying;WANG Changying;CHEN Ming(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Guangdong Everwin Precision Technology Co.Ltd,Dongguan 523808,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]广东长盈精密技术有限公司,广东东莞523808

出　　处：《机械设计与研究》2018年第4期119-122,共4页Machine Design And Research

基　　金：国家自然科学基金资助项目(51475298);航天先进技术联合研究中心技术创新项目(USCAST2016-16);上海航天科技创新基金重点项目(SAST2017-060);国家商用飞机制造工程技术研究中心基金(COMAC-SFGS-2016-33277)

摘　　要：碳纤维增强复合材料（CFRP）是航空、航天和汽车等领域使用较为广泛的1种新型材料。其具有各向异性、非均匀性的特点,是1种典型的难加工材料。CFRP材料的层间结合强度远远低于拉伸强度,这一特点导致刀具在切削CFRP材料时经常会出现毛刺、分层、劈裂等缺陷。而碳纤维增强复合材料在钻削过程中会由于切削方向角的变化会出现加工质量不一致的情况,这对于材料制造的可靠性与稳定性具有巨大的挑战。文中主要从碳纤维增强复合材料钻削过程中的切削力、孔壁形貌与表面粗糙度等方面出发,分析不同切削方向角下的断裂机理,研究其表面质量的分布规律。Carbon fiber reinforced composite（ CFRP） is a new type of material which is widely used in the fields of aviation,space and automobile. Titanium alloy materials. And it is a typical difficult-to-machining material because of its anisotropy and heterogeneity. The bond strength between layers of CFRP materials is far lower than the tensile strength. This feature often causes defects such as burrs,delamination,and splitting when cutting CFRP materials. In the process of drilling,the quality of carbon fiber reinforced composites is different due to the change of cutting direction angle,which has great challenge to the reliability and stability of material manufacturing. This paper mainly analyzes the fracture mechanism under different cutting direction angles from the aspects of cutting force,hole wall morphology and surface roughness in the drilling process of carbon fiber reinforced composite materials,and studies the distribution law of its surface quality.

关 键 词：碳纤维增强复合材料 钻削 切削方向角 表面质量 孔壁形貌 

分 类 号：TB332[一般工业技术—材料科学与工程] TG501[金属学及工艺—金属切削加工及机床]