Abstract
In the present study, laser cutting of cotton fiber composite laminate is experimented using a modified DVD writer drive. A 250 mW diode laser is initially extracted from a DVD writer drive, and then regulated by a custom-made laser driver circuit designed using a Proteus® software. Experimental tests are carried out using multi-pass laser trepanning drilling at different drilling speeds and standoff distances (SODs). The cut quality is evaluated by measuring the extent of both oxide and resolidified resin regions. It was discovered high speed of trepanning drilling and positive SOD significantly improve cutting region quality. Furthermore, positive and negative SODs require relatively high number of passes at different drilling speeds. From SEM micrographs, it is found out that the crack formation and fiber protruding happen in thedrilling area due to thermal stresses and matrix vaporization.
Original language | English |
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Pages (from-to) | 187-196 |
Number of pages | 10 |
Journal | International Journal of Integrated Engineering |
Volume | 12 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2020 |
Externally published | Yes |
Keywords
- Cotton
- Fiber composite
- Grey relational analysis
- Laser drilling
- Laser trepanning
- Optimization
ASJC Scopus subject areas
- Civil and Structural Engineering
- Materials Science (miscellaneous)
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering