Conventional and unconventional machining performance of natural fibre-reinforced polymer composites: A review

Abstract

Natural fibre composites are the promising replacement for synthetic fibre owing to their improved properties, and more importantly, natural fibres are biodegradable and of low cost. These characteristics have made them viable for contemporary engineering and structural applications. However, large scale production of natural fibre composites is in prone because of the challenges in manufacturing and machining. Fibre composite exhibits poor machinability characteristics owing to their heterogeneous and anisotropic behaviour. To overcome this problem, various steps and new methodologies have been established in the view to produce quality machining in natural fibre composites. In recent years, the possibility of conventional machining in natural fibre composites was also discussed. In the present review study, an effort has been taken in studying the fibre composite’s machining characteristics and their failure mechanism in both conventional and unconventional machining. The influence of process parameters in machining different natural fibre composites is also discussed.

A comprehensive review on the machining and joining characteristics of natural fiber‐reinforced polymeric composites

“…Drilling, milling, turning, and polishing are the traditional machining processes. 49 Since the machining of naturally reinforced composites through conventional machining processes is not an easy task, there is a wide acceptance to non-conventional machining processes. 50 The most common non-conventional general machining processes used in the manufacturing field are AWJM, AJM, laser beam machining (LBM), EBM, and WJM.…”

“…70 Notably, the impact of the AWJM process on NF reinforced composites has been studied by various researchers. 49 The majority of studies are done in AJM in NF-reinforced composites. Some non-conventional machining process and their applications are listed below in Table 2.…”

Improving Sustainability of EDM Sector by Implementing Unconventional Competitive Manufacturing Approach

“…e attributes include excessive tool wear due to the presence of abrasive particles in the composites, formation of build-up edges, and exhibiting poor surface as the removal of particles leaves the pits on the surface [2][3][4]. To resolve this issue, the composites were manufactured using the unconventional machining (UCM) technique, of which electric discharge machining (EDM) was preferred for producing components with utmost quality [5].…”

Experimental Investigation of Thrust Force, Delamination and Surface Roughness in Drilling Hybrid Structural Composites

“…These composites are gaining more attention in modern application—especially in many engineering structures and constructions—because of their light weight and increased strength over conventional materials [ 1 , 2 , 3 ]. The particle composites have increased stiffness, strength, and moisture-absorption stability, making them better candidates for structural applications [ 4 , 5 , 6 , 7 ]. However, machinability (e.g., drilling) of these structural composites is difficult because of their heterogeneous properties [ 8 , 9 ].…”