Fibre swelling during laser drilling of carbon fibre composites

Voisey, K.T.; Fouquet, Stéphanie; Roy, Debdulal; Clyne, T.W.

doi:10.1016/j.optlaseng.2005.10.008

Cited by 66 publications

(33 citation statements)

References 11 publications

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“…With the use of laser processing, there is no significant change in electrical resistance of the laser-treated carbon fibre fabric. Thus, laser treatment is a good process to enhance aesthetic properties of carbon fibre fabric without altering its original electrical properties [21][22][23]. Based on the pattern in Figure 1, it is noted that the pattern intensity becomes darker with increasing pixel time and resolution.…”

Section: Fourier Transform Infrared Spectroscopy-attenuated Total Intmentioning

confidence: 99%

“…There is no direct relationship between the contact angle and the electrical resistance. In the laser treatment, the interaction between laser beam and the carbon fibre fabrics is mainly in the fibre surface and the laser process affects only the fabric surface, only a thin layer of carbon fibre is removed [21][22][23], which may affect surface properties of the carbon fibre fabric such as contact angle. However, the electrical resistance property is a bulk property and the surface laser engraving process may not affect inner part of the carbon fibre fabric and hence alter the its original properties [16,20].…”

Section: Electrical Resistancementioning

confidence: 99%

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An Analysis of Effect of CO2 Laser Treatment on Carbon Fibre Fabric

et al. 2018

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Abstract:The colour of carbon fibre fabric is black which limits its aesthetic properties. CO 2 laser has been used for cutting carbon fibres. The impact of CO 2 laser treatment to modify the surface of carbon fibre fabric is investigated in this work. Different combinations of laser process parameters, i.e., pixel time (110, 120, 130, 140, 150, 160, 170, 180, 190 and 200 µs, with 10 µs intervals) and resolution (70, 80, 90 and 100 dpi (dots per inch), with 10 dpi intervals), were used for treating carbon fibre fabric surface. Since the laser process is a surface treatment, contact angle measurement was used for evaluating the wetting property imparted after laser processing. The resistivity of the laser-treated carbon fibre fabric was measured to evaluate any effect on the original electrical property of the carbon fibre fabric. Moreover, surface morphology and functionality of laser-treated carbon fibre fabric were assessed by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy-attenuated total internal reflectance (FTIR-ATR), respectively. SEM assessment was to examine the physical change in the carbon fibre surface after laser processing. On the other hand, the FTIR-ATR measurement can help to evaluate the chemical change in the carbon fibre surface after laser processing.

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Section: Fourier Transform Infrared Spectroscopy-attenuated Total Intmentioning

confidence: 99%

Section: Electrical Resistancementioning

confidence: 99%

An Analysis of Effect of CO2 Laser Treatment on Carbon Fibre Fabric

et al. 2018

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“…He obtained good correlation predictive equations of various step-core drills on delamination by employing multi-variables regression. K. T. Voisey et al [4], worked on fiber swelling during laser drilling of carbon fiber composite. Three types of carbon fibers were used in them work: T300, high modulus (HM) andP100fibers.Scanning electron microscopy (SEM) and Raman spectroscopy have been used to investigate the effect of fiber type on the extent of laser-induced fiber swelling.…”

Section: Work On Drilling Of Cfrp Compositesmentioning

confidence: 99%

“…Based on Raman spectra obtained from both as-received and laser drilling fibers, the swelling mechanics is attributed to simultaneous structural rearrangement and rapid, heating induced volatilization of impurities. C. Tsao [4] experimentally investigated the thrust force of step drill with drilling parameters (step angle, stage ratio, feed rate and spindle speed) in drilling carbon fiber reinforced plastic (CFRP) laminates. Linear regression analysis (Taguchi method) and radial basis function network (RBFN) used to predict of thrust force Produced by step drill.…”

Section: Work On Drilling Of Cfrp Compositesmentioning

confidence: 99%

Experimental and Analytical Investigation of Drilling of Sandwich Composites: A Review

Patil¹

2013

IOSR-JMCE

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“…CFRPs are gaining widespread uses in many applications where lightweight, high strength and corrosion resistance are essential, such as in the aerospace, automotive and marine industries [1]. Although the structures made by composites are often constructed and cured to the required shape, machining, such as trimming of the edges and drilling of assembly/fastening holes, remains unavoidable [2].…”

Section: Introductionmentioning

confidence: 99%

TEA CO2 laser machining of CFRP composite

Salama

Mativenga

et al. 2016

Appl. Phys. A

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Carbon fibre-reinforced polymer (CFRP) composites have found wide applications in the aerospace, marine, sports and automotive industries owing to their lightweight and acceptable mechanical properties compared to the commonly used metallic materials. Machining of CFRP composites using lasers can be challenging due to inhomogeneity in the material properties and structures, which can lead to thermal damages during laser processing. In the previous studies, Nd:YAG, diode-pumped solidstate, CO 2 (continuous wave), disc and fibre lasers were used in cutting CFRP composites and the control of damages such as the size of heat-affected zones (HAZs) remains a challenge. In this paper, a short-pulsed (8 ls) transversely excited atmospheric pressure CO 2 laser was used, for the first time, to machine CFRP composites. The laser has high peak powers (up to 250 kW) and excellent absorption by both the carbon fibre and the epoxy binder. Design of experiment and statistical modelling, based on response surface methodology, was used to understand the interactions between the process parameters such as laser fluence, repetition rate and cutting speed and their effects on the cut quality characteristics including size of HAZ, machining depth and material removal rate (MRR). Based on this study, process parameter optimization was carried out to minimize the HAZ and maximize the MRR. A discussion is given on the potential applications and comparisons to other lasers in machining CFRP.

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Fibre swelling during laser drilling of carbon fibre composites

Cited by 66 publications

References 11 publications

An Analysis of Effect of CO2 Laser Treatment on Carbon Fibre Fabric

An Analysis of Effect of CO2 Laser Treatment on Carbon Fibre Fabric

Experimental and Analytical Investigation of Drilling of Sandwich Composites: A Review

TEA CO2 laser machining of CFRP composite

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