STUDY ON MACHINING FORCES AND MACHINED SURFACE QUALITY OF PLANE WOVEN-FABRIC CFRP IN ORTHOGONAL CUTTING EXPERIMENT

Abstract

Abstract: 2-D plane woven-fabric carbon fiber reinforced polymer (CFRP) is widely used in manufacturing composite structural parts owing to its excellent mechanical property, fatigue and impact resistance. However, because of the inhomogeneity and the fiber structure, the machinability of woven-fabric CFRP has significant differences from metal, alloy materials and unidirectional CFRP. In order to study the machinability of woven-fabric CFRP and to improve the machining efficiency and surface quality, an orthogonal cutting experiment was carried out to measure the values of cutting forces of the woven-fabric CFRP with varying conditions and a metallographic microscopy and a roughness profiler were utilized to characterize the surface quality of each machined workpiece. The results show that the fiber orientation angle has a huge influence on cutting forces. The increase of the cutting speed and the decrease of the cutting depth can lead to a better machinability and surface quality of the woven-fabric CFRP.

Key words: 2-D orthogonal woven-fabric CFRP, orthogonal cutting, cutting force, fiber orientation angle, surface roughness

CLC Number:

TB332

WANG Dong-yao, HE Xiao-dong, LIU Wen-bo, WANG Rong-guo. STUDY ON MACHINING FORCES AND MACHINED SURFACE QUALITY OF PLANE WOVEN-FABRIC CFRP IN ORTHOGONAL CUTTING EXPERIMENT[J]. Fiber Reinforced Plastics/Composites, 2017, 0(12): 77-82.

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