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Drilling on Fibre-Glass Composite using CO2 Laser

M. M., Noor and T. T., Mon and K., Kadirgama and M. S. M., Sani and M. R. M., Rejab (2009) Drilling on Fibre-Glass Composite using CO2 Laser. In: International Conference on Advance Mechanical Engineering (ICAME’09) , 22-25 June 2009 , Concorde Hotel, Shah Alam, Selangor. . (Unpublished)


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Fibre-glass composite has been increasingly used in automotive, aerospace and electronics industries, where hole making on this material is a major process. In this paper, non-traditional machining method was employed to drill the fibre-glass composite sheet of 2 mm in thickness having four layers of glass-fibre with orientation <0, 90, 0, 90>. The machining setup consists of computer-controlled laser source and air supply by a compressor that acts as assist gas for cooling. The type of laser source was CO2 with a maximum power of 30W. The machining parameters under consideration were laser power and pulse duration. A total of 12 holes were drilled varying laser power and pulse duration. Laser power was varied from 15 to 25W while pulse duration from 2 to 5 minute. Laser-drilled holes were investigated under optical microscope. The hole quality was evaluated with the hole size, hole geometry, burn mark and heat-affected zone. Hole quality were then compared for each parameter combination. It was found that the laser power had predominantly affected the quality of the hole in fibre-glass composite material during laser-drilling.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Tet Tet Mon Daw (T.T. Mon) Muhamad Mat Noor (M. M. Noor) Dr. Kumaran Kadirgama (K. Kadirgama) Dr. Mohd Ruzaimi Mat Rejab (M. R. M. Rejab) Mohd Shahrir Bin Mohd Sani (M. S. M. Sani)
Uncontrolled Keywords: Laser-drilling, CO2 laser, fibre-glass composite, heat-affected zone
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Zairi Ibrahim
Date Deposited: 18 Jul 2011 06:38
Last Modified: 25 Jan 2018 01:04
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