Process development of laser machining of carbon fibre reinforced plastic composites

Li, Z. L.; Chu, PL; Zheng, Hong; Lim, Gwon; Li, L.; Marimuthu, Sundar; Negarestani, Reza; Sheikh, M. A.; Mativenga, Paul

doi:10.2351/1.5061315

Cited by 29 publications

(23 citation statements)

References 9 publications

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“…The initial experiment was conducted before doing the drilling experiments in order to ascertain the maximum hole depth that can be achieved with the laser system identified for this part of the research. The purpose was to establish if the 1 kW fiber laser machining system feasibly penetrates 25.4 mm thick CFRP completely or not, since this was the first attempt at machining CFRP of more than 7 mm thick and it has never been done by other researchers [5][6][7][8][9][10][11][12]. Narrow slots were machined (i.e.…”

Section: Figurementioning

confidence: 99%

“…For components made of CFRP, certain difficulties, such as fiber pull-out, delamination and decomposition of the matrix material, are the most frequent problems that occur during the machining processes, all of which affect the quality of the machined surfaces and the material properties [2][3][4]. The work conducted on machining of CFRP so far has almost exclusively focused on CFRP thicknesses of less than 25 mm [5][6][7][8][9][10][11][12], which has resulted in only a small number of references on drilling thick, i.e. approximately one inch or 25 mm, CFRP material.…”

Section: Introductionmentioning

confidence: 99%

“…An ideal cut for laser machining would be very narrow, completely straight and vertical, perfectly clean, and the cut faces would be smooth [5]. However, a typical laser cut is characterized by striations (regular straight lines on the cutting surface caused by the laser beam axis), splatter on the top surface, kerf width, edge roundness, microstructure defects due to HAZ, dross at the bottom surface, and unwanted tapering [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Drilling Strategy for Thick Carbon Fiber Reinforced Polymer Composites (CFRP): A Preliminary Assessment

Sobri

Heinemann

Whitehead

et al. 2018

J. Eng. Technol. Sci.

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Carbon fiber reinforced polymer or CFRP composites are the epitome of high-performance materials in lightweight design. However, their machinability can be problematic due to non-homogenous and anisotropic material properties. This preliminary assessment emphasizes drilling strategy by using mechanical drilling and laser machining on 25.4 mm thick CFRP, which has not been investigated so far. In mechanical drilling, three drilling strategies were applied with the same parameters in order to assess the feasibility of drilling thick CFRP. The laser machining experiments were conducted to identify the potential of fiber laser machines to cut thick CFRP due to their superior laser beam quality. The results showed that choosing the appropriate drilling strategy in mechanical drilling is essential for reducing damage when drilling thick CFRP. Significant damage occurred in all experiments. The results are useful to define the relationships between machining parameters related to mechanical/laser drilling and hole/cut quality.

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Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Drilling Strategy for Thick Carbon Fiber Reinforced Polymer Composites (CFRP): A Preliminary Assessment

Sobri

Heinemann

Whitehead

et al. 2018

J. Eng. Technol. Sci.

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“…Laser cutting is the main production for thin sheet workpiece. These workpiece can be cut by several types of laser such as Nd:YAG laser, fiber laser or by water-jet guided Nd:YAG laser which produces narrower kerf width [2]. The narrower the kerf width, the lower the energy input for the workpiece, because of melting lower amount of material.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Laser Cutting Parameters on the Laminated Carbon Fibre Reinforced Plastics (CFRP) Composites Using DOE Technique

Wahab

Rahman

Marrakchi

et al. 2014

AMM

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Nowadays, carbon fiber reinforced plastics (CFRP) composites is widely used in the aerospace industry due to its excellent mechanical properties. In laser cutting process, high powers are used to cut materials then material melts and burns leaving edges with a high quality finish. To fulfill the high demand of cutting quality, a set of laser cutting parameters of CFRP material are studied. The objective of this experiment is to obtain an optimum laser cutting parameter thus minimizing the cutting defects particularly on kerf width at the top and bottom surfaces. The analysis of process parameter was carried out using DOE, Design Expert 6.0.8. Cutting speed, pulse duration, pulse repetition rate and pulse energy were analyzed at two levels. By the optimizing the parameter setting, significant improvement in cutting quality has been achieved.

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“…Li et al [7] investigated drilling holes into CFRP using an Avia-X high power Q-switched thirdharmonic Nd:YVO 4 diode pumped solid state laser system. Operating at 355 nm he investigated the effects of scanning speed on the cut quality of a matrix of nine holes, 2mm in diameter.…”

Section: Introductionmentioning

confidence: 99%

Fibre laser material processing of aerospace composites

French¹,

Naeem²,

Wolynski³

et al. 2010

International Congress on Applications of Lasers &Amp; Electro-Optics

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Laser material processing of composite materials such as carbon fibre reinforced plastics (CFRP) for aerospace structures is generating a great deal of interest in the aerospace industry. The aerospace sector is seeing the potential benefits of laser processing over other machining technologies such as water jet or traditional mechanical cutting or milling. An important question that the industry needs answering is which laser systems offers the best processing characteristics with respect to machined surface quality, cycle time and cost. At present three laser systems are being seriously considered by the industry for applications such as drilling, cutting and milling operations on CFRP. They are Pulsed TEA-CO 2 , DPSS UV and fibre laser systems. This paper investigates laser cutting and laser milling of CFRP and the machining strategy for cutting CFRP and GFRP using a fibre laser.

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Process development of laser machining of carbon fibre reinforced plastic composites

Cited by 29 publications

References 9 publications

Drilling Strategy for Thick Carbon Fiber Reinforced Polymer Composites (CFRP): A Preliminary Assessment

Drilling Strategy for Thick Carbon Fiber Reinforced Polymer Composites (CFRP): A Preliminary Assessment

Optimization of Laser Cutting Parameters on the Laminated Carbon Fibre Reinforced Plastics (CFRP) Composites Using DOE Technique

Fibre laser material processing of aerospace composites

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