Optimization of machining parameters at high speed drilling of carbon fiber reinforced plastic (CFRP) laminates

Krishnaraj, V.; Prabukarthi, A.; Ramanathan, Arun Kumar; Elanghovan, N.; Senthilkumar, M.; Zitoune, Rédouane; Davim, J. Paulo

doi:10.1016/j.compositesb.2012.01.007

Cited by 337 publications

(146 citation statements)

References 18 publications

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“…Moreover, the effect of increase in cutting speed is more significant on the peel-up delamination than the push-down delamination, as shown in Figure 7. This quantitative interpretation of peel-up and push-down delamination with varying cutting speed is equivalent to the microscopic analysis (see Figure 6) and is also found in strong agreement in similar studies [11][12][13]27,39,57]. In Figure 7, the least peel-up and push-down delamination are recorded for 9000 rpm and 6000 rpm, respectively.…”

Section: Delamination Factor (F D )supporting

confidence: 62%

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: Delamination Factor (F D )supporting

confidence: 62%

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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“…From the results of these trials, it can be noticed that the cutting speed did not influence the tool life, measured in number of holes, within the studied range, whereas the lowest feed rate yielded a decrease in the tool life. Other literature in the machining of CFRP presented different results (Azmi et al, 2013;Krishnaraj et al, 2012;Mamalis et al, 2005;Rawat and Attia, 2009). Mamalis claimed that Taylor's model was applicable to the drilling of CFRP, and successfully calculated n and C constants, obtaining an inverse V c -T relationship, using Taylor's model (Mamalis et al, 2005).…”

Section: Figure 1 Typical Tool Life Curvesmentioning

confidence: 99%

The applicability of Taylor's model to the drilling of CFRP using uncoated WC-Co tools: the influence of cutting speed on tool wear

Merino-Pérez

Merson

Ayvar-Soberanis

et al. 2014

IJMMM

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This work investigates the applicability of Taylor's model on the drilling of CFRP using uncoated WC-Co tools, by assessing the influence of cutting speed (V c ) on tool wear. Two different resins, possessing low and high glass transition temperatures (T g ), and two different reinforcements, high strength and high modulus woven fabrics, were combined into three different systems. Flank wear rate gradient exhibited to be more reinforcement dependent, while the actual flank wear rate showed to be sensible also to the type of resin. In terms of tool life, all CFRP systems adjusted into a power-type tool life vs. cutting speed curve through the full range of cutting speeds (1,000 RPM to 18,000 RPM). Therefore, Taylor's model can be applied to estimate the tool life in the drilling of CFRP using uncoated WC-Co tools with good accuracy. 96 J.L. Merino-Pérez et al.Keywords: Taylor model; cutting speed; tool wear; flank wear; tool life; glass transition temperature; CFRP; SEM; drilling; machining; machinability.Reference to this paper should be made as follows: Merino-Pérez, J.L., Merson, E., Ayvar-Soberanis, S. and Hodzic, A. (2014) Sabino Ayvar-Soberanis is a Research Associate at the AMRC leading the research field of process modelling and residual stress measurements. He has worked in a range of industrial and research projects focused on the development of computer base models for machining processes as composite machining, metal cutting, and residual stress/machining distortion. He is also working and investigating different techniques for induced and bulk residual stress measurements.

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“…O compósito, entretanto, é a junção das duas partes, e pode-se demonstrar isso pelo fato de que, quando algumas fibras se rompem, a deformação elástica ou plástica da matriz produz forças de cisalhamento que gradualmente fazem os fragmentos de fibra exercer resistência novamente. Desse modo, percebe-se que, na ausência da matriz, as fibras ao redor teriam de suportar um aumento maior de tensão o que tornaria o material mais frágil [2,3] .…”

Section: Introductionunclassified

Usinabilidade de materiais compósitos poliméricos para aplicações automotivas

et al. 2014

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Resumo: A cada dia o avanço tecnológico nos leva a encruzilhadas como a construção de veículos mais leves, com menor consumo de combustível e mais seguros. Neste sentido, materiais compósitos poliméricos são materiais usados atualmente em diferentes aplicações nas quais a leveza combinada com um alto módulo de elasticidade são características importantes. Poliamidas reforçadas com fibras de vidro se apresentam como materiais de grande futuro em aplicações automotivas. Desta forma, torna-se importante o estudo do comportamento deste tipo de material quando submetidos a processos de usinagem. Dentre os processos de usinagem o processo de furação é um dos mais utilizados nos componentes de material compósito. Neste trabalho será analisada a influência do avanço, da velocidade de corte e da geometria da ferramenta na força de avanço, pressão específica de corte e desvios dimensionais do furo realizado. Os testes foram realizados em poliamida sem reforço (PA6) e reforçada com 30% fibra de vidro (PA66-GF30) utilizando brocas de carbonetos sinterizados (K20) com ângulos de ponta diferente. Os resultados apontam claramente para a melhor usinabilidade do material reforçado em comparação ao sem reforço. Palavras-chave: Compósitos, polímeros reforçados, usinabilidade, furação, danos. Machining Behavior of Polymer Composites Materials for Automotive ApplicationsAbstract: The continuous technological advance has led to the challenge of building lighter and safer vehicles, but with lower fuel consumption. Within this scenario, polymeric composites are materials currently used in different applications, where lightweight combined with high modulus of elasticity are important features. Polyamide reinforced with glass fiber face a promising future for automotive applications, thus becoming important to study the behavior of this type of material when subjected to machining processes. Among the machining processes, drilling is one of the most widely applied to composite materials. In this work the influence of feed rate, cutting speed and tool geometry on thrust force, specific cutting pressure and hole dimensional deviations is investigated. The tests were performed on unreinforced polyamide (PA6) and on polyamide reinforced with 30 wt % glass fiber (PA66-GF30) using tungsten carbide drills (K20) with different tip angles. The results clearly indicate the superior machinability of the reinforced material, compared with the unreinforced polyamide. Gerais -UFMG, Av. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG, Brasil, e-mail: juan@ufmg.br Keywords: Composites, reinforced polymers, machinability, drilling, damage. Autor para correspondência: Juan Aarlos Aampos Aubio, Departamento de Engenharia Mecânica, Universidade Federal de Minas IntroduçãoOs polímeros são macromoléculas de elevada massa molecular, resultante de reações químicas de polimerização e formadas por unidades menores denominadas monômeros. Polímeros podem ser de origem natural, derivados de substâncias obtidas de plantas, animais ou min...

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Optimization of machining parameters at high speed drilling of carbon fiber reinforced plastic (CFRP) laminates

Cited by 337 publications

References 18 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

The applicability of Taylor's model to the drilling of CFRP using uncoated WC-Co tools: the influence of cutting speed on tool wear

Usinabilidade de materiais compósitos poliméricos para aplicações automotivas

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