The material removal mechanism in orthogonal cutting of woven AFRP

被引:5
|
作者
Liu, Sinan [1 ]
Wu, Di [1 ]
Zhao, Jian [1 ]
Hou, Yanyan [1 ]
Jin, Yan [2 ]
Sun, Dan [2 ]
机构
[1] Tianjin Chengjian Univ, Sch Control & Mech Engn, Tianjin 300384, Peoples R China
[2] Queens Univ Belfast, Sch Mech & Aerosp Engn, Belfast BT9 5AH, Antrim, North Ireland
基金
欧盟地平线“2020”; 英国工程与自然科学研究理事会;
关键词
POLYMER COMPOSITES; FORCE PREDICTION; HOLE QUALITY; FIBER; CARBON; DELAMINATION; FRACTURE;
D O I
10.1007/s10853-022-07422-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Aramid fiber reinforced plastic (AFRP) has been widely used in the aerospace and defense industries. However, due to its anisotropic and multiphase structure, AFRP is prone to severe machining defects such as fuzzing and tearing. Understanding the AFRP removal mechanism is crucial in controlling the cutting process for improved machining quality. This is the first systematic study reporting the material removal mechanisms of AFRP at various fiber cutting angles (theta) and under different cutting parameters. When theta = 0 degrees, the material removal process involves peeling of aramid fibers (AF) from the resin matrix caused by the cutting edge. For 0 degrees < theta < 90 degrees, the AF experiences tensile fracture under bending and deflection caused by the cutting edge. theta in the range of 90 degrees to 180 degrees has led to more severe fiber deformation and interfacical debonding. With increasing depth of cut and decreasing cutting speed, the cutting force increases and the machined surface finish deteriorates. The machined surface shows a distinct smearing feature caused by the cutting edge, with embedded fractured AFRP fiber. This investigation provides a greater insight into the material removal mechanism of AFRP, which may inspire future research in reducing material damages in composite manufacturing.
引用
收藏
页码:16301 / 16316
页数:16
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