Title: Modelling and experiment of milling force under all fibre orientation angles in slot milling of unidirectional CFRP laminates

Authors: Weiwei Ming; Lei Zhou; Changying Wang; XiaoJiang Cai; Lulu Jing; Ming Chen

Addresses: School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China ' Shanghai Aerospace Control Technology Institute, No. 1555 of Zhongchun Road, Minhang District, Shanghai, 201109, China ' School of Mechanical Engineering, University of Shanghai for Science and Technology, No. 516 of Jungong Road, Yangpu District, Shanghai, 200082, China ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

Abstract: Milling force is an important factor in determining the machined surface quality of carbon fibre reinforced polymer (CFRP) in milling process. This paper focuses on the radial force and tangential force under different fibre orientation angles during the milling of unidirectional T800/X850 CFRP laminates. The traditional straight slot milling is replaced by the circumferential slot milling in the experiment and the idea of small scale approximation is applied in analysis of data. Using this method, the milling force under all fibre orientation angles can be obtained approximately by a single experiment and the radial force and tangential force during the milling process can be obtained through mechanical modelling. Through processing experimental data, the coefficients in the theoretical formula of CFRP milling are fitted to get a function about milling force on cut depth, feed and tool rotation angle. And this function can be used to optimise milling parameters and fibre orientation during slot milling. [Submitted 16 January 2017; Accepted 18 December 2017]

Keywords: unidirectional CFRP; milling force; coefficient; fibre orientation angle.

DOI: 10.1504/IJMR.2019.100022

International Journal of Manufacturing Research, 2019 Vol.14 No.2, pp.145 - 160

Received: 16 Jan 2017
Accepted: 18 Dec 2017
Published online: 03 Jun 2019 *

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