On full life-cycle instantaneous force predicting when drilling CFRP-metal stacks

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• 作者：Liu Shunuan ; Qi Zhenchao ; Li Yuan…
• 关键词：CMSs ; Drilling force ; Full life ; cycle ; Instantaneous ; Fiber orientation
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：88
• 期：1-4
• 页码：651-661
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design;
• 出版者：Springer London
• ISSN：1433-3015
• 卷排序：88

文摘

Carbon-fiber-reinforced polymer and metal stacks (CMSs) are utilized more and more widely in aviation industries, and drilling force is an important intermediate variable related to the quality of the hole. This paper aims to establish a full life-cycle instantaneous force prediction model for drilling of CMSs considering the fiber orientation and drilling stages. The CMSs drilling process is deconstructed and analyzed; as a result, the embodiment of the primary parameters, such as relief angle, inclination angle, and fiber orientation, in micro-scale element cutting is revealed. The hole-machining process is divided into five stages according to the cutting characteristics and state. The combination and superposition of the cutting force in each stage are analyzed, and the bounds of integration are educed for each stage. The cutting forces of the main cutting edges for the corresponding stages are calculated using infinitesimal element method. Finally, the model of full life-cycle instantaneous force on CMSs drilling is established by combining forces contributed by the main cutting edges and chisel edge. A series of experiments have been performed and the effectiveness of the predicting model is testified.