Abstract
This paper presents a milling force model for carbon fiber-reinforced polymer (CFRP) multidirectional laminates based on segmented specific cutting energy. The proposed model simplifies the milling process of CFRP unidirectional laminates into multiple orthogonal cuttings. The CFRP specific cutting energy was determined by experimental segmentation. An empirical formula for the CFRP segmented specific cutting energy was established, and the milling force of the CFRP multidirectional laminates was predicted using the linear superposition principle. Experimental results confirmed the high accuracy of the milling force model. The specific cutting energy gradually decreased with increasing equivalent cutting thickness. With an increase in the fiber cutting angle θ, the specific cutting energy increased first and then decreased, peaking around θ = π/2.
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