Effects of special drill bits on drilling-induced delamination of composite materials

Hocheng, H.; Tsao, Chung-Chen

doi:10.1016/j.ijmachtools.2005.10.004

Cited by 376 publications

(236 citation statements)

References 39 publications

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“…(Mathew and Ramakrishnan, 1999;Piquet et al, 2000;Tsao and Hocheng, 2005;Hocheng and Tsao, 2003;Hocheng and Tsao, 2006;Ucar and Wang, 2005). The drilling 3 mechanisms had been studied since 20 years ago (Ho-Cheng and Dharan, 1990;Capello 2004).…”

Section: Introductionmentioning

confidence: 99%

Rotary Ultrasonic Machining of Carbon Fiber-Reinforced Polymer: Feasibility Study

Qian

Cong

Pei

et al. 2012

Machining Science and Technology

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Section: Introductionmentioning

confidence: 99%

Rotary Ultrasonic Machining of Carbon Fiber-Reinforced Polymer: Feasibility Study

Qian

Cong

Pei

et al. 2012

Machining Science and Technology

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“…Several approaches had been presented in the last years [1,4,5,6,7,8,9]. Generally it is accepted that delamination can be reduced with an adequate combination of feed rate, drill material and geometry [4,10,11,12,13,14]. Apart from that, another type can also be identified when drilling laminate composites, the "peel-up" delamination.…”

Section: Introductionmentioning

confidence: 99%

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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“…Different techniques and parameters can be used to assess the damage caused by drilling [27,33,39,40]. Sophisticated non-destructive techniques can be employed in addition to low-magnification microscopy in order to identify internal defects, while destructive techniques are rarely employed.…”

Section: Damage Evaluation Methodsmentioning

confidence: 99%

“…The extent of the damage around the hole is highlighted by the contrasting colours and can be measured using an optical microscope. In [39] an ultrasonic C-scan technique is used, but X-ray computerized tomography (CT) can also be successfully used, as mentioned by the author.…”

Section: Damage Evaluation Methodsmentioning

confidence: 99%