Investigation of CO2 Laser Drilled Micro Holes for Heat Affected Zone and Structural Integrity in CFRP Composites

Anarghya, M and Nitish, S R and Yatheesha, R B and Gurumurthy, B M and Ranjith, B S (2016) Investigation of CO2 Laser Drilled Micro Holes for Heat Affected Zone and Structural Integrity in CFRP Composites. International Journal of Materials, 3. pp. 33-43. ISSN 2313-0555

[img] PDF
1013.pdf - Published Version
Restricted to Registered users only

Download (940kB) | Request a copy
Official URL: http://www.naun.org/main/NAUN/materials/2016/a1220...

Abstract

This paper analyses the CFRP composites upon which laser drilling is performed using Marbach Compact CO2 laser cutting system (2115 DC-020), and their analysis is done through scanning electron microscope (SEM) JOEL JSM-6490 LV. Considering the continuous wave laser instead of the pulsed laser and the selection of the optimum gas pressure of 4bar of the assist gas (Argon) in the laser in this study has resulted in the contribution of least heat affected zones. Optimum parameters of the CO2 laser drilling techniques such as the cutting speed, gas pressure, assist gas, laser type, laser beam power, and frequency are developed. The characteristics of the workpiece such as the material, diameter, and thickness is also considered, and an optimization process is performed to maintain the structural integrity of the composite by reducing the induction of HAZ in the composite, after performing the laser drilling. The SEM images for the various parameter values are developed. The optimization of these parameter values concludes the paper.

Item Type: Article
Uncontrolled Keywords: CFRP, HAZ, Laser Drilling, SEM, Structural Integrity.
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 22 Aug 2016 15:38
Last Modified: 22 Aug 2016 15:38
URI: http://eprints.manipal.edu/id/eprint/146814

Actions (login required)

View Item View Item