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三种钻头钻削CFRP的制孔损伤对比
邱新义1, 李鹏南1, 陈安华2, 牛秋林1, 刘峰1
1.湖南科技大学机电工程学院,湘潭 411201;2.湖南科技大学机械设备健康维护省重点实验室,湘潭 411201
摘要:
采 用二刃双锋角钻头、三刃双锋角钻头和圆弧形钻头在不同加工参数下钻削CFRP,对比分析了孔入出口质量(入口损伤、毛刺和出口撕裂),并采用毛刺存在角度来衡量毛刺的多少。结果表明:随着进给量的增大毛刺存在的角度(范围)α先减小后增大;综合考虑孔入口和出口质量(毛刺和撕裂因子),三刃双锋角钻头最适合钻CFRP。
关键词:  毛刺  撕裂因子  CFRP  双锋角钻头
DOI:10.12044/j.issn.1007-2330.2019.01.013
分类号:
基金项目:国家自然科学基金No.51775184,No.51275168,No.51605161;湖南省自然科学基金No.2015JJ5028国家自然科学基金(No.51775184,No.51275168,No.51605161);湖南省自然科学基金(No.2015JJ5028)
Comparison on Hole Damage of Drilling CFRP With Three Kinds of Drills
QIU Xinyi1, LI pengnan1, CHEN Anhua2, NIU Qiulin1, LIU feng1
1.School of Mechanical Engineering, Hunan University of Science and Technology,Xiangtan 411201;2.Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology,Xiangtan 411201
Abstract:
In this paper,the two-edged double point angle drill,three-edged double point angle drill and arc-shaped drill were used to drill UD-CFRP under different cutting parameters.The hole entry and exit quality (entrance damage,burr and exit delamination) were analyzed.And the burrs exist angle (α) was used to measure the number of burrs.The experimental results show that the angle α decreases first and then increases with the increase of the feed rate.Taking into account the quality of the entry and exit (burr and delamination factor), the three-edged double point angle drill is most suitable for drilling CFRP.
Key words:  Burr  Delamination factor  CFRP  Double point angle drill