Research on thrust cutting force and hole quality of typical drilling bit in woven CFRP drilling

doi:10.19936/j.cnki.2096-8000.20220828.015

Abstract

Abstract: Woven carbon fiber reinforced polymer (CFRP) has been widely used in aerospace, national defense and military industry due to its excellent properties such as high specific strength and specific modulus. However, due to the special fiber wovening mode of woven CFRP, its cutting and material properties are quite different from those of unidirectional CFRP. In order to improve the drilling quality of woven CFRP, three kinds of typical structure drills, such as twist drill, the three point drill and octahedral drill, are used to systematically study the variation of axial cutting force and drilling quality under different drilling conditions. The experimental results show that the three point drill can effectively reduce the axial cutting force and improve the drilling quality, which is more suitable for woven CFRP drilling.

Key words: woven CFRP, three point drilling, octahedral drill, thrust force, delamination

CLC Number:

TB332

ZOU Cai-yong, SHI Guang-xing, LI Jie, LIU Si-nan. Research on thrust cutting force and hole quality of typical drilling bit in woven CFRP drilling[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(8): 99-104.

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