Title: Research on micro cutting mechanism of CFRP oblique milling

Authors: Yiwei Zhang; Guixing Wang; Jiexiao Yang; Mengke Yan; Junjie Tang; Panpan Hu

Addresses: Chongqing Engineering Research Center for Advanced Intelligent Manufacturing Technology, Chongqing Three Gorges University, Chongqing, China ' School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, China; Shanxi Aerospace Tsinghua Equipment Co., Ltd., Changzhi, China ' Chongqing Jiangdong Machinery Co., Ltd., Chongqing, China ' Chongqing Engineering Research Center for Advanced Intelligent Manufacturing Technology, Chongqing Three Gorges University, Chongqing, China ' Chongqing Engineering Technology Research Center for Light Alloy and Processing, Chongqing Three Gorges University, Chongqing, China ' Chongqing Engineering Technology Research Center for Light Alloy and Processing, Chongqing Three Gorges University, Chongqing, China

Abstract: A study on CFRP spiral milling was conducted by investigating the material removal mechanism of carbon fibre reinforced polymer/plastic (CFRP) during milling, The milling process of CFRP is simplified as oblique cutting, and a three-dimensional finite element simulation model for microscopic-level oblique cutting is established. The accuracy of the model is validated through experimental verification. It has been discovered that when the fibre-cutting angle is 0°, fibre fracture occurs in bending mode. Compared to orthogonal cutting, CFRP exhibits poorer surface quality under 45° edge angle conditions due to the different support provided by back fibres. The degree of damage on the non-cutting side is more severe than that on the cutting side due to this difference in support role. As the cutting angle increases, damage depth decreases on non-cutting sides while increasing on cuttings sides; however, machining parameters have no effect on fibre fracture.

Keywords: CFRP milling; oblique cutting; mechanism research; simulation model.

DOI: 10.1504/IJMMM.2024.143661

International Journal of Machining and Machinability of Materials, 2024 Vol.26 No.4, pp.312 - 331

Received: 25 Jan 2024
Accepted: 11 Apr 2024
Published online: 03 Jan 2025 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article