Processing and fiber content effects on the machinability of compression moulded random direction short GFRP composites

Kim, D and Kim, YH and Gururaja, S and Ramulu, M (2010) Processing and fiber content effects on the machinability of compression moulded random direction short GFRP composites. In: International Journal of Automotive Technology, 11 (6). pp. 849-855.

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Abstract

The random direction short Glass Fiber Reinforced Plastics (GFRP) have been prepared by two compression moulding processes, namely the Preform and Sheet Moulding Compound (SMC) processes. Cutting force analysis and surface characterization are conducted on the random direction short GFRPs with varying fiber contents (25 similar to 40%). Edge trimming experiments are preformed using carbide inserts with varing the depth of cut and cutting speed. Machining characteristics of the Preform and SMC processed random direction short GFRPs are evaluated in terms of cutting forces, surface quality, and tool wear. It is found that composite primary processing and fiber contents are major contributing factors influencing the cutting force magnitudes and surface textures. The SMC composites show better surface finish over the Preform composites due to less delamination and fiber pullouts. Moreover, matrix damage and fiber protrusions at the machined edge are reduced by increasing fiber content in the random direction short GFRP composites.

Item Type:	Journal Article
Publication:	International Journal of Automotive Technology
Publisher:	The Korean Society of Automotive Engineers (KSAE)
Additional Information:	Copyright of this article belongs to The Korean Society of Automotive Engineers (KSAE).
Keywords:	Random direction short Glass Fiber Reinforced Plastics (GFRPs); Compression moulding; Machinability; Fiber contents; Cutting force analysis; Surface texture
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	21 Dec 2010 11:16
Last Modified:	21 Dec 2010 11:16
URI:	http://eprints.iisc.ac.in/id/eprint/34571

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