RESEARCH ON MICRO-DRILLING OF CARBON FIBER COMPOSITES

Abstract

Abstract: In the hole-making process of carbon fiber composites, micro-hole processing is an important processing technology. The delamination in micro-hole machining is mainly caused by the spalling effect of the inlet bit and the pushing effect of the outlet. The damage of hole wall is mainly caused by too high drilling temperature, which leads to the softening of interlayer resin and adhesion of the cutter, and affects the cutting quality of the cutter. In this paper, the effects of spindle speed and feed speed on axial force and interlaminar temperature of carbon fiber composites with a diameter of 1 mm were studied experimentally, and the micropore quality was evaluated by SEM. The results show that controlling spindle speed and feed speed can effectively reduce axial force and interlayer temperature and improve the quality of hole forming.

Key words: CFRP, micro-hole, axial force, drilling temperature

CLC Number:

TB332

ZHAO Qi-di, WANG Gong-dong, WANG Meng, LI Ying-chi. RESEARCH ON MICRO-DRILLING OF CARBON FIBER COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2019, 0(12): 62-66.

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