An Investigation into CO2 Laser Trimming of CFRP and GFRP Composites

Shyha, Islam (2013) An Investigation into CO2 Laser Trimming of CFRP and GFRP Composites. In: 5th Manufacturing Engineering Society International Conference, 26-28 June 2013, Zaragoza, Spain.

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Abstract

The paper outlines results for an investigation of CO2 laser trimming of fibre reinforced plastic (FRP) composites. Process variables include cutting speed, laser beam power, gas pressure and workpiece material. These have been evaluated against key response measures involving material removal rate (MRR), surface roughness and kerf width. Higher MRRs have been obtained when trimming GFRP. Maximum MRR of 8 cm3/min was acquired when trimming GFRP at 1750 mm/min, 5 bar and 2500 watt respectively. Scanning electron microscope (SEM) analysis revealed that matrix constituent in both composites incurred to elevated cutting temperature which resulted in melting and adhering to the cut surface and adverse its quality. Greatest entry kerf width of 0.5 mm and 0.28 mm was measured for GFRP and CFRP samples respectively.

Item Type: Conference or Workshop Item (Paper)
Subjects: H300 Mechanical Engineering
H700 Production and Manufacturing Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Related URLs:
Depositing User: Islam Shyha
Date Deposited: 16 Apr 2013 13:45
Last Modified: 10 Aug 2015 11:08
URI: http://nrl.northumbria.ac.uk/id/eprint/12225

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