ABSTRACT

Surface quality is an important output measure in all the machining processes. In this research, cotton and viscose fabrics were used as a reinforcement, graphene was used as a filler (1.5, 3, 4.5 weight percentage (wt. %)) for the development of hybrid composite using compression molding process with hand layup techniques. The machinability of the prepared hybrid composite was studied using the Abrasive Water Jet Machining (AWJM) process. The effect on AWJM input parameters of water pressure (P), nozzle transverse speed (v), and abrasive flow rate (m) over the surface roughness (R_a) have also been studied using Design of Experiments (DoE) with Taguchi analysis. A better surface quality was obtained for the addition of 4.5 wt. % of graphene filler in the hybrid composite with the optimized AWJM process parameters of 250 MPa of P, 60 mm/min of v, and 200 g/min of m.

摘要

表面质量是所有加工过程中的重要输出指标。在这项研究中，棉和粘胶织物用作增强材料，石墨烯用作填料（1.5、3、4.5 重量百分比（wt.%）），用于使用压缩成型工艺和手糊技术开发混合复合材料。使用磨料水射流加工 (AWJM) 工艺研究了制备的混合复合材料的可加工性。水压 (P)、喷嘴横向速度 (v) 和磨料流速 (m) 对 AWJM 输入参数的影响对表面粗糙度 (R _a) 还使用带有田口分析的实验设计 (DoE) 进行了研究。添加 4.5 wt.% 可获得更好的表面质量。混合复合材料中石墨烯填料的百分比，优化的 AWJM 工艺参数为 250 MPa 的 P、60 mm/min 的 v 和 200 g/min 的 m。