The path towards delamination-free drilling of composite materials

Hocheng, H.; Tsao, Chao Jung

doi:10.1016/j.jmatprotec.2005.06.039

Cited by 379 publications

(198 citation statements)

References 92 publications

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“…The drilling operation was carried out in a five-axis Makino A-55 (Makino, Tokyo, Japan) machining center with maximum spindle speed of 20,000 rpm and maximum feed rate of 50 m/min. A support (or stacking) plate made of polymer was installed under the CFRP plate to avoid push-down delamination, as proved effective in the previous studies [47,48]. The drilling test arrangement is shown in Figure 1b.…”

Section: Drilling Setup and Parametersmentioning

confidence: 99%

Assessment of Cutting Performance of Cemented Tungsten Carbide Drills in Drilling Multidirectional T700 CFRP Plate

Ali

Yue

et al. 2018

JMMP

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Abstract:The drilling of carbon fiber reinforced polymer (CFRP) plate is very critical in its structural applications in aeronautical, aerospace, and automobile industries. For ensuring the good quality of drilled holes in terms of least drilling damage and prolonged tool life, suitable selection of drill geometry and material, and drilling parameters-such as cutting speed and feed rate-are imperative in the drilling of CFRP plate. This study aims to evaluate the cutting performance of conventional two-flute twist drills made of cemented tungsten carbide YG6X (WC-6 wt % Co) for the dry drilling of the multidirectional T700 CFRP plate. The effects of varying cutting speed and tool wear pattern on the drilling performance are analyzed. The drilling performance is assessed in terms of hole quality by the qualitative and quantitative analysis of drilling-induced delamination and hole diameter. Furthermore, the correlation between the tool wear progression and the drilled hole quality is established. Through this assessment, a suitable set of drilling parameters, i.e., cutting speed of 9000 rpm and feed rate of 400 mm/min, is proposed for producing the best quality holes for multidirectional T700 CFRP plate.

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Section: Drilling Setup and Parametersmentioning

confidence: 99%

Assessment of Cutting Performance of Cemented Tungsten Carbide Drills in Drilling Multidirectional T700 CFRP Plate

Ali

Yue

et al. 2018

JMMP

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“…All the holes had a diameter of 6 mm and associated with twist drill, a 1,5 mm pilot hole was made for thrust force reduction. Pilot hole diameter was based on previous works [6,9,12]. Twist drill is a standard drill commonly used.…”

Section: Experimental Workmentioning

confidence: 99%

“…3. Cutting parameters were selected according to author's previous experience, published papers from other authors and fabricant recommendations [6,9,12]. As it has been already demonstrated the major importance of feed rate when compared with spindle speed in thrust forces development [12], cutting speed was always equal to 53 m/min, corresponding to a spindle speed of 2800 rpm and feed rate had three levels -low, medium and high -table 1.…”

Section: Experimental Workmentioning

confidence: 99%

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Evaluation of Tools and Cutting Conditions on Carbon Fibre Reinforced Laminates

Gonçalves¹,

Durão²,

Tavares

et al. 2010

MSF

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Abstract. The distinctive characteristics of carbon fibre reinforced plastics, like low weight or high specific strength, had broadened their use to new fields. Due to the need of assembly to structures, machining operations like drilling are frequent. In result of composites inhomogeneity, this operation can lead to different damages that reduce mechanical strength of the parts in the connection area. From these damages, delamination is the most severe. A proper choice of tool and cutting parameters can reduce delamination substantially. In this work the results obtained with five different tool geometries are compared. Conclusions show that the choice of an adequate drill can reduce thrust forces, thus delamination damage.

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“…The thrust force produced during drilling is one of main indexes to define machinability of composite laminates due to the fact that it directly affects the quality of drilled holes, especially delamination [15]. There is a critical value for thrust force which is believed to exist below which no delamination occurs [16]. In this paper, the sandwich laminate of 5 layers is made with alternating layers of aluminium and glass fibre mat and its drilling characteristics are studied and analysed using Taguchi method.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Thrust force in Drilling Woven roving Glass fibre reinforced Aluminium Sandwich laminates with TiAlN coated drill using Taguchi analysis

Devi

Palanikumar²

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract:TiAlN is a high-performance coating which outshines in coarse and hard-to-machine materials like cast iron, aluminium alloys, tool steels, and nickel alloys. This paper presents the prediction and evaluation of thrust force and Torque in drilling of Woven roving Glass Fibre Reinforced Plastic and Aluminium sandwich laminate. The Prediction is based on Taguchi method. The experimental results specify that the feed rate and the drill diameter are the most significant factors affecting the thrust force, while the feed rate and spindle speed contribute the most to the surface roughness. In this study, the objective was to establish a correlation between the feed rate, spindle speed and drill diameter with the induced thrust force and Torque in drilling sandwich laminate.

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The path towards delamination-free drilling of composite materials

Cited by 379 publications

References 92 publications

Assessment of Cutting Performance of Cemented Tungsten Carbide Drills in Drilling Multidirectional T700 CFRP Plate

Assessment of Cutting Performance of Cemented Tungsten Carbide Drills in Drilling Multidirectional T700 CFRP Plate

Evaluation of Tools and Cutting Conditions on Carbon Fibre Reinforced Laminates

Evaluation of Thrust force in Drilling Woven roving Glass fibre reinforced Aluminium Sandwich laminates with TiAlN coated drill using Taguchi analysis

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