Investigation of the effect of nanofillers on the quality of CO2 laser cutting of FRP nanocomposites

Nagesh, Suresh; Murthy, H. N. Narasimha; Pal, Ratna; Dev, S. D. Supreeth; Krishna, M.

doi:10.1007/s00170-016-9535-y

Cited by 10 publications

(2 citation statements)

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“…carbon and glass) the structure properties extremely affect the process of laser cutting [10,11]. This is due to the signi cant differences between physical properties of polymer matrix and reinforcement materials as the published results from other researchers indicate [6][7][8][9][10][11][12][13][14][15][16][17]. In CO 2 laser cutting of Te on and Te on-bronze composite sheets, Davari et al [10] showed that the upper kerf width for both materials was in order of 0.5 mm for a beam diameter of 0.35 mm.…”

Section: Introductionmentioning

confidence: 99%

“…Tamrin et al [15] experimentally and numerically analyzed low power laser cutting of cotton bre laminate (CFL) and they observed that protruding bres along with bubbles and crack happened on the laser cut edge of the sample causing signi cant strength loss of bres and epoxy. Nagesh et al [16] experimentally researched on the in uence of the addition of nano llers on the quality of laser cutting of vinylester/glass nanocomposites. They found that nickel nanopowder made uniform distribution of smaller globules of char to protect the bres whilst carbon black brought about thick char material and allowed glass bre to melt.…”

Section: Introductionmentioning

confidence: 99%

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CO2 laser cutting of glass-fibre-reinforced unsaturated polyester (GFRUP): an experimental investigation

Rejani

Hashemzadeh

2021

Preprint

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Glass-fibre reinforced unsaturated polyester (GFRUP) is one the thermoset composites that has many applications in manufacturing productions. CO2 laser cutting of this composite has been significantly developed in industries. It is believed that the presence of glass fibre network in the matrix of thermoset affect the laser cutting process of this composite. In addition, the three-dimensional matrix of monomers along with carbon atoms in the atomic network's joints can also influence the laser cutting parameters. The aim of this research is to experimentally investigate the effect of these complicated structural properties on the CO2 laser cutting of GFRUP sheets. First, the maximum cutting speeds, in which the cut occurs, was obtained for various sheet thicknesses using a variety of powers. The kerf width was measured with using an optical stereo-microscope. Then, the laser cutting mechanism was discussed using the SEM of the cut edge surfaces. The volume cutting efficiency was also studied. The results indicate that the upper kerf width is wider than the lower kerf width. The upper kerf width is larger than the spot size of 0.3 mm. The chaotic striations on the cut edge surface are the re-solidified glass fibres and can be seen as something like stalactites which are in black due to the carbon dust. Opening of the lower kerf due to the shrinkage of the re-solidified glass fibre is reported as a phenomenon. The cutting efficiency decreases as sheet thickness increases.

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