Jet pressure influence on micro-abrasive waterjet trepanned hole in CFRP composite material
参考中译:喷射压力对碳纤维增强复合材料微磨粒水喷射开孔的影响


          

刊名：MTT
作者：Rajesh Ranjan Ravi（Indian Institute of Technology Madras）
D. S. Srinivasu（Indian Institute of Technology Madras）
刊号：782HA053
ISSN：0972-7396
出版年：2023
年卷期：2023, vol.22, no.5
页码：24-29
总页数：6
分类号：TH16
关键词：Micro-Abrasive waterjet；Trepanning；CFRP；Delamination；Over-Cut；Circularity error
参考中译：微研磨水刀;钻孔;碳纤维增强塑料;分层;过切;圆度误差
语种：eng
文摘：Carbon fibre reinforced polymer (CFRP) composite material is widely used in various industries such as aerospace, automobile, and defence due to its high strength-to-weight ratio and stiffness. Making holes in CFRP through conventional drilling comes with issues such as fibre pull-out, fibre breakage, delamination, and chipping. On the other hand, abrasive waterjet (AWJ) is well known for machining composite material due to its unique features such as no heat-affected zone, local erosion, minimum residual stress, etc. In this study, micro-AWJ is employed to trepan holes in the CFRP composite material, and the influence of waterjet pressure (P) on the hole diameter, over-cut, circularity error, taper angle, and damage at the hole top and bottom surface are analyzed as the pressure is a dominating parameter influencing the performance. Diametrical deviation and over-cut at top and bottom planes increase, surface damage decreases, and circularity error decreases with the increase in P.
参考中译：碳纤维增强聚合物（MRP）复合材料因其高强度重量比和硬度而广泛应用于航空航天、汽车、国防等各个行业。通过传统钻孔在碳纤维增强塑料中钻孔会出现纤维拉出、纤维断裂、分层和碎裂等问题。另一方面，研磨水刀（AWJ）因其无热影响区、局部侵蚀、残余应力最小等独特特点而被广泛应用于复合材料的加工。本研究采用微型AWJ对碳纤维增强纤维增强纤维由于压力是影响性能的主要参数，分析了孔顶和底表面的损伤情况。随着P的增加，顶、底平面的直径偏差和过切增加，表面损伤减少，圆度误差减少。



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