关键词: 碳纤维复合材料, 钎焊金刚石套料钻, 轴向力, 扭矩, 撕裂

Abstract:

Since the tool life was quite short and damages often appeared  in drilling CFRP,a brazed diamond core drill was applied in drilling CFRP herein.In order to illustrate the machining performance of brazed diamond core drill,a diamond coated twist drill was
selected to compare with,and the cracking which influenced the drilling quality severely was analyzed.
Through the quality testing and analysis of exit,the results were obtained:for different type of drills,
the thrust force and torque affect the cracking.Under the same machining parameters,the thrust force and torque of
brazed diamond core drill are smaller than that of diamond coating twist drill,and using brazed diamond core
drill can reduce the cracking and improve machining efficiency.

Key words: CFRP(carbon fiber reinforced plastics), brazed diamond core drill, thrust force, torque, cracking