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Indexed by:会议论文

Date of Publication:2018-01-01

Included Journals:CPCI-S

Volume:923

Page Number:428-439

Key Words:Carbon Fiber Reinforced Polymer (CFRP); Milling; Fiber cutting angle; Surface damage

Abstract:The milling process of carbon fiber reinforced polymer (CFRP) is prone to damages like burr and tear. The fiber cutting angle is generally recognized as an important factor in damage formation. In this study, through up milling and down milling experiments with unidirectional CFRP laminates at four typical orientations, the influence of the dynamic change of fiber cutting angle on surface damage was clarified by burr height, burr morphology and tear degree. The research shows that the dynamic change of fiber cutting angle is the basis of CFRP surface damage formation. Damage accumulates gradually in damage-prone zone, which ultimately determines burr height. When the variation range coincides 90 degrees-135 degrees partially or completely, a significant subsurface tear occurs. If it covers both acute and obtuse areas, the tear degree and burr morphology are determined by the order of the two regions.