CF/PEEK复合材料超声辅助铣削力和表面质量研究  

Ultrasonic-assisted Milling Force and Surface Quality Study of CF/PEEK Composites

作　　者：孙瑜 杨涛 杜宇[2] 郭睿虎[2] SUN Yu;YANG Tao;DU Yu;GUO Ruihu(Advanced Mechatronics Equipment Technology Tianjin Area Major Laboratory,Tianjin 300387;School of Mechanical Engineering,Tiangong University,Tianjin 300387)

机构地区：[1]天津市现代机电装备技术重点实验室,天津300387 [2]天津工业大学机械工程学院,天津300387

出　　处：《宇航材料工艺》2023年第5期84-89,共6页Aerospace Materials & Technology

基　　金：天津市自然科学基金(20JCQNJC00050)。

摘　　要：为改善碳纤维增强聚醚醚酮复合材料(CF/PEEK)在铣削加工时所产生的毛刺、分层以及表面凹坑等缺陷,采用超声辅助铣削的加工方式分别沿0°、45°、90°、135°四种纤维方向角对CF/PEEK进行实验,并与传统铣削进行对比研究。结果表明:超声辅助铣削与传统铣削相比,切削力更小且加工质量更优。沿90°纤维方向角对试件进行超声辅助铣削,切削力、表面粗糙度和毛刺高度降幅最显著,分别降低了16.79%、28.9%和71.9%。而且在相同的加工参数下,超声辅助铣削与传统铣削相比,能够有效地改善表面凹坑、分层等表面缺陷。In order to improve the milling of carbon fibre reinforced polyether ether ketone(CF/PEEK)composites with defects such as burrs,delamination and surface pits,the processing method of ultrasound-assisted milling with CF/PEEK at four fibre orientation angles of 0°,45°,90°and 135°was carried out and compared with conventional milling.The results show that ultrasonic-assisted milling has lower cutting forces and better machining quality than conventional milling.The most significant reductions in cutting forces,surface roughness and burr height are achieved by ultrasoundassisted milling of specimens along a 90°fibre orientation angle,with reductions of 16.79%,28.9%and 71.9%respectively.Furthermore,ultrasonic-assisted milling is effective in improving surface defects such as surface pits and delamination,compared to conventional milling under the same machining parameters.

关 键 词：CF/PEEK 超声辅助铣削 纤维方向角 切削力 表面质量 

分 类 号：TB332[一般工业技术—材料科学与工程]