摘要
为抑制玻璃纤维增强聚丙烯复合材料(GF/PP)制孔损伤并提高其制孔效率,本文通过钻削实验获得多种进给速度下的GF/PP复合材料钻削轴向力和出口温度,使用高速摄影设备对刀具钻出过程进行在线观测,研究出口材料去除过程及其损伤成因,分析进给速度对GF/PP复合材料制孔损伤的影响规律。结果表明:GF/PP复合材料的钻削出口温度在低速进给时显著升高,在高速进给时基本趋于稳定;出口撕裂是重要的出口损伤形式,成因是大片毛刺受副切削刃的撞击和撕挤,进给速度过高或过低均会加剧损伤;0°毛刺在低速进给时较严重,入口撕裂在高速进给时较严重。
In order to diminish drilling damage of glass fiber reinforced polypropylene composite（GF/PP）and improve its drilling efficiency,thrust force and outlet temperature during drilling GF/PP composites for various feed rates were measured by drilling experiments,and outlet processes of drilling were instituted observed with highspeed photography equipment.Outlet material removal process and damage mechanisms were demonstrated.Effect of feed rates on GF/PP composites drilling damage was analyzed.The results show that the outlet drilling temperature is high with low feed rates and becomes relatively steady as feed rates increasing;Outlet tearing is mainly outlet damage and caused by the tearing of large burrs by the cutting edges;It becomes severe with a too high or low feed rate.0°burr is serious with low feed rates;Inlet tearing is serious with high feed rates.
作者
王福吉
郭会彬
贾振元
马建伟
成德
胡海波
WANG Fuji;GUO Huibin;JIA Zhenyuan;MA Jianwei;CHENG De;HU Haibo(School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China)
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2018年第8期2023-2031,共9页
Acta Materiae Compositae Sinica
基金
NSCF-辽宁联合基金重点项目(U1508207)
国家自然科学基金面上项目(51575082)
国家973计划(2014CB046503)
国家自然科学基金创新研究群体项目(51621064)
中央高校基本科研业务费专项资金(DUT16TD01)
