Carbon fiber-reinforced thermoplastics (CFRTP) are just beginning to be utilized for various applications such as aerospace, automobiles, and sporting goods in place of CFRPs, and the demand for through-hole drilling of CFRTPs is increasing. In this study, the machinability in drilling of CFRTPs under various conditions was experimentally analyzed in terms of the material properties, and a feasibility study of ultrafast feed drilling was conducted. The results showed that delamination at the outlet surface can be significantly suppressed during high rotational drilling when the feed rate is set to more than 3000 mm/min. By providing appropriate drilling conditions to prevent polymers in CFRTPs from softening, ultra-fast drilling of CFRTPs was successfully achieved under dry conditions.
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机译：碳纤维增强热塑性塑料（CFRTP）刚开始被用于代替CFRP的各种应用，例如航空航天，汽车和体育用品，并且对CFRTP进行通孔钻探的需求正在增加。在这项研究中，对CFRTPs在各种条件下的钻孔加工性进行了材料特性的实验分析，并进行了超快进给钻孔的可行性研究。结果表明，当进给速度设置为大于3000 mm / min时，在高转速钻孔过程中可以显着抑制出口表面的分层。通过提供适当的钻孔条件以防止CFRTP中的聚合物软化，在干燥条件下成功实现了CFRTP的超快速钻孔。
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