Experiment Research and Model on Drilling Force of CFRP

In this paper, the authors built the test device for CFRP drilling machining and drilling force detection system. An experimental research was conducted on the drilling force of CFRP drilling. Based on the multiple liner regression analysis through SPSS software, the empirical formula, considering the spindle speed and feed rate, is presented for predicting the drilling force. The results obtained were satisfactorily validated by comparing the experimental findings with the corresponding theoretical data and it is possible to conclude that the model affords a focused approach to the definition of the most appropriate drill geometry and cutting parameters in composite materials drilling.