Drilling Performance of Natural Fiber Reinforced Polymer Composites: A Review

ABSTRACT

The drilling of natural fiber-reinforced polymer composites (NFRCs) and their hybrid composites is a critical machining operation, which becomes vital to facilitate parts assembly. The quality of the drill hole is crucial for advanced applications due to strict dimension tolerance. The NFRCs have been studied rapidly for recent years because of their comparable specific properties, secure and safe handling, eco-friendly, and accessibility compared to synthetic fiber-based composites. This paper presents a review of past and present research studies of the drilling behavior of NFRCs and their hybrid. Firstly, it investigates various drilling techniques used for NFRCs. Then, an overview of the various drilling parameters and keys aspects of drilling performance parameters are presented to provide the space to narrate the development of ideas and our current understanding of this research field. After that, a study on drill bit geometry and materials, and residual strength is analyzed. Consequently, the method of improving the drilling properties for natural fiber-reinforced polymer composite and their hybrid, the challenges, and recommendations for researchers are highlighted. Results showed that the drilling performance could be enhanced by chemical treatment of natural fiber and using the special drill bit besides determining the optimized drilling performance parameters.

摘要

天然纤维增强聚合物复合材料（NFRCs）及其混杂复合材料的钻削加工是一项关键的加工操作，对零件的装配起着至关重要的作用. 由于严格的尺寸公差，钻孔的质量对于高级应用至关重要. 近几年来，与合成纤维基复合材料相比，NFRCs因其具有可比的特性、安全的操作、环保和易接近性而得到了迅速的研究. 本文综述了近场RCS及其复合材料钻井性能的研究现状. 首先，研究了NFRCs的各种钻井技术. 然后对各种钻井参数和钻井性能参数的关键方面进行了概述，为叙述这一研究领域的发展思路和我们目前的理解提供了空间. 在此基础上，对钻头的几何结构和材料进行了研究，并对钻头的剩余强度进行了分析. 因此，提高天然纤维增强聚合物复合材料及其混杂材料钻削性能的方法、面临的挑战以及对研究人员的建议都被强调. 结果表明，在确定最佳钻井性能参数的同时，对天然纤维进行化学处理，使用专用钻头，可以提高钻井性能.

KEYWORDS:

• Natural fibers
• polymer matrix
• drilling
• drill tools
• delamination
• thrust force

關鍵詞:

• 天然纤维
• 聚合物基质
• 钻孔
• 工具
• 分层
• 推力

Acknowledgments

The authors thankfully acknowledge the support of the Center of Advanced and Functional Materials (AFM) and Universiti Teknologi PETRONAS (via the graduate assistantship scheme).

Additional information

Funding

This research funding supported by International collaborative research fund: UTP-Kyutech 2020 (015MEO-208) and FRGS grant through  MOHE, Malaysia (015MAO-081).