Abrasive water jet machining of Sisal/Pineapple epoxy hybrid composites with the addition of various fly ash filler

• Published in: Materials research express Vol. 7; no. 3; pp. 35303 - 35317
• Main Authors: Sumesh, K R, Kanthavel, K
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01-03-2020
• Subjects: Abrasive machining; Bagasse; Bonding strength; Fiber reinforcement; Fiber-matrix adhesion; filler addition; Fillers; Fly ash; Hybrid composites; hybrid natural fiber composites; Hydraulic jets; machining properties; Material removal rate (machining); particle reinforcement; Pineapples; Process parameters; Surface roughness
• ISSN: 2053-1591; 2053-1591
• DOI: 10.1088/2053-1591/ab7865

This research was based on influence of various fly ash filler content in the machining properties of Pineapple (P)/Sisal (S) hybrid fiber reinforcement composites. Fly ash from bio waste materials of Bagasse (BGFA), Banana (BFA) and Coir (CFA) were used. High hardness nature of 3% BFA (22.73 HV) and 3% CFA (23.85 HV) reduces Material Removal Rate (MRR) and increases its surface roughness nature of the composites. Maximum MRR of 376.38 mm3 min−1 was observed in 3% BGFA combinations with 250 MPa Water jet Pressure (WP), 1mm Standoff Distance (SOD) and 20 mm min−1Traverse Speed (TS) as machining parameters. MRR of 353.64 and 352.76 mm3 min−1 was found out with 1% CFA and 1% BFA combinations. Lower surface roughness of 6.39 m, 6.71 m and 6.75 m was found in 3% BGFA, 1% CFA and 1% BFA based composites. Filler surface created a tight bonding with the matrix, which reduces the erosion of fiber particles at higher WP. Untreated fibers showed lesser machining properties due to low fiber/matrix bonding. SEM results showed reducing of cracks and matrix breakages by the substitution of filler powders.