高强度型T800S/250F CFRP的制孔缺陷研究  

Defects study on drilling of high-strength T800S/250F CFRP laminates

作　　者：徐锦泱[1] 蔡晓江[1] 魏莹莹[1] 安庆龙[1] 陈明[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《制造技术与机床》2013年第3期97-101,共5页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金重点项目(51105253);国家高技术研究发展计划(863)项目(2013AA040104);国家重点基础研究发展计划(973)项目(2010CB731703);国家科技重大专项课题(2012ZX04003-031)

摘　　要：为了研究T800S/250F CFRP的制孔缺陷,采用CVD涂层麻花钻和CVD涂层匕首钻进行了钻削实验。结果表明:进给率(f)的增大将加剧制孔表面的毛刺缺陷和分层损伤;高速、低进给钻削能够有效地提高制孔出口表面质量,减小毛刺缺陷和分层损伤;与CVD涂层麻花钻相比,CVD涂层匕首钻能够获得更小的制孔表面缺陷(毛刺和分层损伤),具有更优异的制孔性能,更适合高强度型T800S/250F的钻削加工。In order to evaluate the drilling defects of T800S/250F CFRP, CVD coated twist drill and CVD coated dagger drill were adopted for the drilling experiments. The results show that： increase of feed rate （f） may exacerbate the burr defect and delamination damage at the exit side of the laminates. High-speed drilling and low feed rate can effectively improve the surface quality of the exit side of laminates, and reduce the burr defect and delamination damage. Compared to CVD coated twist drill, CVD coated dagger drill generates smaller defects, i.e., less burrs and smaller delamination damage, shows superior drilling performance, and is more suitable for drilling of high-strength T800S/250F CFRP.

关 键 词：碳纤维增强复合材料(CFRP) 钻削加工 毛刺 出口分层 

分 类 号：TQ327[化学工程—合成树脂塑料工业] TG713[金属学及工艺—刀具与模具]