During drilling of Ti/CFRP stacks in traditional ways

damages and tool wear occur frequently. In this study

the parameters of low-frequency vibration (LFV) drilling were optimized to improve the drilling quality and tool life. The parameters of LFV drilling were optimized in two steps. Firstly

a group of optimal parameters were obtained by combing of different cutting parameters in orthogonal experiments. Then a small range of drilling parameters near the optimal parameters were selected and optimized again according to extra orthogonal experiments. By using the final optimized parameters

the validity of optimal parameters was verified by comparing of the traditional drilling results and the LFV drilling results. The results showed that the tool wear was improved distinctly when drilling with LFV method. Also

it helps to decrease cutting chip size while increasing hole quality and elongating tool life.