Abstract: On the background of the narrow prepregs used by AFP, combined with 16 tow cutting-coiling machine developed by ourself, we carried out the research on the coiling tension, and briefly analyzed and discussed the influence of the coiling tension on the cutting and coiling quality of the narrow prepregs. To ensure the cutting and coiling quality, being different from the traditional PID algorithm, we focused on the application of the fuzzy-PID on the closed-loop control system, which can achieve an accurate control in low tension applying on the accurate control strategy, the control precision can be achieved to 0.1 N, which meets the cutting requirement of the narrow prepregs, ensures the quality of the cutting and coiling and improves the wire laying quality.

Key words: automated fiber placement, prepregs, cutting coiling, fuzzy-PID, tension control