China Plastics ›› 2025, Vol. 39 ›› Issue (3): 65-70.DOI: 10.19491/j.issn.1001-9278.2025.03.012

• Processing and Application • Previous Articles     Next Articles

Experimental study on hole⁃making of CFRP with ultrasonic vibration

WANG Cheng1(), SU Yongsheng1(), RUAN Fangtao2, ZHU Yiyang1   

  1. 1.College of Mechanical and Automotive Engineering,Anhui Polytechnic University,Wuhu 241000,China
    2.College of Textile and Clothing,Anhui Polytechnic University,Wuhu 241000,China
  • Received:2024-08-06 Online:2025-03-26 Published:2025-03-24

Abstract:

An experimental study was conducted on the hole⁃making performance of carbon fiber⁃reinforced composites (CFRP) using a PCD tool under dry drilling and ultrasonic dry drilling conditions. The objective was to identify potential avenues for enhancing the cutting performance of CFRP and to optimize the efficiency and quality of hole⁃making for CFRP. In order to ascertain the efficacy of PCD conventional tools and PCD weaving tools in the context of dry drilling and ultrasonic dry drilling conditions, the holes were made in CFRP. The cutting force, hole entrance diameter size, hole external morphology, and tool surface adhesion were analyzed under different conditions. In the context of ultrasonic dry drilling, the fiber filaments were found to be more extensively broken, although the resulting hole diameter was typically large. Compared to the PCD conventional tool, the PCD structuring tool resulted in a reduction by 34.72% in the total cutting force and by 1.27 % in the relative error drop of the hole diameter. The surface quality at the entrance of the hole was superior under the PCD textile tool machining conditions, and ultrasonic dry drilling reduced the total cutting forces by 6.64% to 16.87 %. Compared to dry drilling, ultrasonic dry drilling generated a more pronounced effect on breaking up chips and could effectively inhibiting the generation of burrs at the entrance. In the context of ultrasonic dry drilling, PCD weaving tools could reduce the cutting force in comparison with conventional PCD tools. Similarly, when using PCD weaving tools, the cutting force could be effectively reduced compared to dry drilling.

Key words: carbon fibre composites, ultrasonic vibration, PCD tool, cutting force, hole?making

CLC Number: