High-strength environment-friendly metal-fiber laminates (MFLs) are increasingly used for primary structures for various engineering applications. The surface roughness variation and delamination factor of a titanium (Ti) metal-cored basalt/flax fiber laminate were investigated during abrasive water jet drilling (AWJD). The present AWJD investigation is to establish the correlation of four important process independent variables of W_JP—water jet pressure, T_S—traverse speed, Q_MFR—abrasive mass flow rate, and S_OD—stand-off distance to the delamination factor (F_d-top) and surface roughness (R_a) of drilled hole. Central composite design (CCD) of L₂₉ orthogonal array was used to perform the experimental observations. The statistical approach (ANOVA) was employed to determine the contribution of individual AWJD parameters to drilling operation. It is identified from experimental results that the water jet pressure is the most predominant process parameter and its contribution on F_d-top and R_a were 74.28% and 72.48%, respectively. Increasing the water pressure from low (160 MPa) to its higher range (320 MPa) showed that the surface roughness and delamination factor were reduced irrespective of other drilling parameters. Increased water pressure provides enough kinetic energy for abrasive particles to facilitate a higher penetration potential during the drilling process. Scanning Electron Microscope (SEM) images show the machining-induced damages like ploughing marks, uncut fibers, ridges, craters, matrix smearing, and delamination on an abrasive water jet drilled surface of prepared MFL.

高强度环保金属纤维层压板 (MFL) 越来越多地用于各种工程应用的主要结构。在磨料水射流钻孔 (AWJD) 过程中研究了钛 (Ti) 金属芯玄武岩/亚麻纤维层压板的表面粗糙度变化和分层因素。本AWJD调查是建立W的四个重要过程自变量的相关性_Ĵ P-水射流压力，T_小号-traverse速度，Q _MFR -abrasive质量流率，和S _ö d-投射距离的脱层系数 (F _d-top ) 和钻孔的表面粗糙度 (R _a )。L _29的中央复合设计（CCD）正交阵列用于进行实验观察。采用统计方法 (ANOVA) 来确定各个 AWJD 参数对钻井作业的贡献。实验结果表明，水射流压力是最主要的工艺参数，它对 F _d-top和 R _{a 的}贡献分别为 74.28% 和 72.48%。将水压从低 (160 MPa) 增加到更高的范围 (320 MPa) 表明，无论其他钻井参数如何，表面粗糙度和分层因子都会降低。增加的水压为磨料颗粒提供了足够的动能，以促进钻井过程中更高的穿透潜力。扫描电子显微镜 (SEM) 图像显示了加工引起的损坏，如在制备的 MFL 的磨料水射流钻孔表面上的犁痕、未切割的纤维、脊、坑、基体涂抹和分层。